Cement grouting drilling machine and construction method

Abstract

The present application relates to the construction technology field of road drilling machine, a cement grouting drilling machine and a construction method, comprising: confirming the cement grouting drilling machine and the road surface to be repaired, obtaining the road surface base structure model, calibrating the sensor zero point of the cement grouting drilling machine, obtaining the calibrated cement grouting drilling machine, determining the accurate position set of road drilling according to the preset design drawing, and executing the following operation on each accurate position of the accurate position set of road drilling: moving the calibrated cement grouting drilling machine to the accurate position of road drilling to obtain the drilling machine to be drilled, creating the road repair grouting data cloud picture, summarizing the road repair grouting data cloud picture, obtaining the road repair grouting data cloud picture set corresponding to the accurate position set of road drilling, identifying the multiple grouting effect suspicious section set, and completing the cement grouting drilling machine construction based on the multiple grouting effect suspicious section set. The present application can improve the intelligent and accurate level of drilling and grouting operation for road construction scene.

Description

Technical Field

[0001] This invention relates to the field of road drilling technology, and in particular to a cement grouting drilling rig and its construction method. Background Technology

[0002] A cement grouting drill is a specialized piece of equipment used for drilling and cement grouting, primarily applied in road engineering for the treatment of pavement and subgrade defects. In the maintenance and repair of highways and municipal roads, this equipment injects cement grout into the soil and rock layers of the pavement base, subbase, or subgrade through drilling. This fills cracks and pores in the pavement structure, enhances the bonding between pavement structural layers, improves the overall bearing capacity and stability of the subgrade, and simultaneously improves the pavement's impermeability and seepage resistance. It effectively treats pavement subsidence, cracks, loosening, and other defects, extending the service life of the road.

[0003] In borehole grouting operations for road defect treatment, traditional drilling rigs have significant limitations in drilling accuracy, making it difficult to precisely control the verticality and depth of the borehole. If the borehole is skewed or insufficient in depth, the cement grout cannot be accurately injected into the core defect areas of the pavement base, subbase, or subgrade, affecting the grouting reinforcement effect. Secondly, the quality control of traditional grouting construction relies heavily on manual recording of key information such as grouting parameters and construction locations. This is not only inefficient but also prone to data errors due to human negligence, failing to meet the stringent quality requirements of road maintenance projects. Therefore, improving the intelligence and precision of borehole grouting operations for road construction scenarios is an urgent technical problem to be solved. Summary of the Invention

[0004] This invention provides a cement grouting drilling rig, the main purpose of which is to improve the intelligence and precision of drilling and grouting operations in road construction scenarios.

[0005] To achieve the above objectives, the present invention provides a cement grouting drilling rig, comprising:

[0006] A cement grouting drilling rig, comprising: a grout circulation system, a grouting pump, a drill rod, and a drill bit.

[0007] This invention provides a cement grouting drilling rig and construction method, as well as a computer-readable storage medium, the main purpose of which is to improve the intelligence and precision of the construction process.

[0008] To achieve the above objectives, the present invention provides a cement grouting drilling rig construction method, comprising:

[0009] Once the road surface to be repaired is identified, a road base structure model is obtained based on the road surface to be repaired. The sensor zero point of the pre-constructed cement grouting drilling rig is calibrated to obtain the calibrated cement grouting drilling rig. The precise location set of road drilling holes is determined according to the preset design drawings.

[0010] For each precise location of a road borehole in the precise location set, the following operations are performed:

[0011] The calibrated cement grouting drilling rig is moved to the precise location of the road drilling hole to obtain the drilling rig to be drilled. The drilling command is received, and a road repair grouting data cloud map is created based on the drilling command, the precise location of the road drilling hole, the road base structure model, the drilling rig to be drilled and the road surface to be repaired.

[0012] By summarizing the pavement repair grouting data cloud maps, a pavement repair grouting data cloud map set corresponding to the precise location set of pavement boreholes is obtained. The precise location of the pavement boreholes and the pavement repair grouting data cloud map are then compared. Figure 1 One-to-one correspondence;

[0013] Based on the road repair grouting data cloud map atlas, multiple sets of sections with questionable grouting effects were identified. Among them, the road repair grouting data cloud map and the sets of sections with questionable grouting effects correspond one-to-one. Each set of sections with questionable grouting effects includes one or more sections with questionable grouting effects.

[0014] Cement grouting drilling was completed based on multiple sections with questionable grouting effects.

[0015] Optionally, the creation of a pavement repair grouting data cloud map based on drilling commands, precise location of pavement boreholes, pavement base structure model, drilling rig to be drilled, and pavement to be repaired includes:

[0016] Based on the drilling instructions, the precise location of the road surface boreholes, and the drilling rig to be drilled, drilling operations are carried out on the road surface to be repaired to obtain the initial drilling depth;

[0017] When the initial drilling depth is equal to the preset standard drilling depth, the drilling parameters and the drilling holes of the road surface to be grouted are obtained. The drilling parameters include: torque, vibration frequency, drilling speed and drilling pressure.

[0018] Draw the pavement structure layer resistance profile based on the borehole parameters, and obtain the accurate pavement structure layer resistance profile based on the pavement base structure model and the pavement structure layer resistance profile.

[0019] The optimal cement slurry viscosity is obtained based on the grouting pump and the pre-constructed slurry circulation system. The strata are divided according to the accurate pavement structure layer resistance profile to obtain multiple depth zones.

[0020] Extract a depth zone from multiple depth zones sequentially, and obtain the stratigraphic type of the depth zone based on the extracted depth zone;

[0021] Initial parameters are obtained based on the formation type in the depth zone and the optimal cement slurry viscosity. These initial parameters include initial pressure and initial flow rate.

[0022] Based on the initial parameters, grouting pump, drilling of the road surface to be grouted, and drill bit, single-segment grouting parameters are obtained. The single-segment grouting parameters are summarized to obtain a single-segment grouting parameter set. The single-segment grouting parameter set includes multiple single-segment grouting parameters, and each single-segment grouting parameter corresponds one-to-one with a depth zone.

[0023] Based on the single-segment grouting parameter set, the grouting pressure process curve and the grouting flow rate process curve are plotted. Based on the grouting pressure process curve, the grouting flow rate process curve and the accurate pavement structure layer resistance profile, a pavement repair grouting data cloud map is created. The pavement repair grouting data cloud map includes multiple pavement grouting sections.

[0024] Optionally, obtaining the initial parameters based on the formation type and optimal cement slurry viscosity in the depth zone includes:

[0025] Based on the stratum type in the depth zone, the pavement stratum resistance strength is determined from the precise pavement structure layer resistance profile. The stratum type in the depth zone, the pavement stratum resistance strength, and the optimal cement slurry viscosity are used as the current parameters.

[0026] The search is performed in the pre-constructed formation slurry interaction table based on the current parameters to obtain the search results, which indicate whether the search was successful or failed.

[0027] If the search result is successful, the initial pressure and initial flow rate are determined from the formation slurry interaction table based on the current parameters.

[0028] If the search result is a search failure, then according to the stratum type of the depth zone, the data row set of the same stratum type is obtained from the stratum slurry interaction table, and according to the pavement stratum resistance strength, the data row set of similar pavement resistance strength is obtained from the data row set of the same stratum type.

[0029] Based on the optimal cement slurry viscosity, similar slurry viscosity data sets are obtained from the parameter set of the same stratum type. The similar pavement resistance strength data sets and similar slurry viscosity data sets are integrated to obtain similar data sets.

[0030] Calculate the Euclidean distance between the current parameter and each similar data row in the similar data row set to obtain the Euclidean distance set. Obtain the neighbor distance set from the Euclidean distance set, where the number of neighbor distances in the neighbor distance set is less than the number of Euclidean distances in the Euclidean distance set.

[0031] The initial pressure and initial flow rate are calculated based on the nearest distance set and the similar data row set.

[0032] Optionally, the calculation of the initial pressure and initial flow rate based on the nearest distance set and similar data row set includes:

[0033] Based on the nearest distance set, identify the nearest similar data row set from the similar data row set, extract the nearest similar data rows from the nearest similar data row set in turn, and calculate the similarity weight based on the extracted nearest similar data rows and the current parameters;

[0034] Summarize the similarity weights to obtain a similarity weight set, and calculate the total similarity weight based on the similarity weight set, where the total similarity weight is the sum of the similarity weight sets;

[0035] Obtain similar pressure value sets and similar flow value sets from the similar data row set. Calculate the initial pressure based on the similarity weight set, the similar pressure value set, and the total similarity weight. Calculate the initial flow based on the similarity weight set, the similar flow value set, and the total similarity weight.

[0036] Optionally, obtaining single-segment grouting parameters based on initial parameters, grouting pump, borehole in the pavement to be grouted, and drill bit includes:

[0037] The grouting pump is set using initial parameters to obtain the installed grouting pump. The start grouting command is received. The grouting operation is performed according to the start grouting command, the drill bit, and the installed grouting pump to drill the hole in the road surface to be grouted, and the initial actual pressure value of the drill bit is obtained.

[0038] If the initial actual drill bit pressure value is not within the preset expected drill bit pressure range, then the upper limit and lower limit of expected drill bit pressure are obtained based on the expected drill bit pressure range.

[0039] If the initial actual drill bit pressure value is less than the expected lower limit of drill bit pressure, the initial flow rate is increased using the pre-built step-increase algorithm to obtain the adjusted flow rate. The adjusted flow rate is used as the initial flow rate, and the process returns to the step of setting the grouting pump using the initial parameters until the initial actual drill bit pressure value is within the expected drill bit pressure range.

[0040] If the initial drill bit actual pressure value is equal to the expected upper limit of the drill bit pressure, then perform a millimeter-level response operation on the installed grouting pump until the initial drill bit actual pressure value is within the expected drill bit pressure range, obtain the calibrated grouting pump, use the calibrated grouting pump as the installed grouting pump, and return to the steps of performing grouting operation on the borehole of the road surface to be grouted according to the start grouting command, the drill bit and the installed grouting pump, until the pre-constructed borehole fullness command is received;

[0041] If the initial actual pressure value of the drill bit is within the expected pressure range of the drill bit, the pressure of the drill bit is monitored in real time until the borehole is saturated, and the single-segment grouting parameters are obtained. The single-segment grouting parameters include: grouting flow rate sequence, actual pressure sequence, and grouting time sequence. The grouting flow rate sequence includes multiple grouting flows, the actual pressure sequence includes multiple actual pressures, and the grouting time sequence includes multiple grouting times. The grouting flow rate, actual pressure, and grouting time correspond one-to-one.

[0042] Optionally, the step of plotting the grouting pressure process curve and the grouting flow rate process curve based on the single-segment grouting parameter set includes:

[0043] A grouting process coordinate system is constructed based on grouting duration, grouting flow rate, and actual pressure. The grouting process coordinate system has grouting duration as the horizontal axis and grouting flow rate and actual pressure as the vertical axis.

[0044] The single-segment grouting parameters are extracted sequentially from the single-segment grouting parameter set. Based on the extracted single-segment grouting parameters, the single-segment grouting pressure process curve and the single-segment grouting flow rate process curve are plotted in the grouting process coordinate system.

[0045] The single-segment grouting pressure process curve and the single-segment grouting flow process curve are summarized separately to obtain a set of single-segment grouting pressure process curves and a set of single-segment grouting flow process curves. The single-segment grouting pressure process curve set and the single-segment grouting flow process curve set are spliced ​​together according to the order of extraction of single-segment grouting parameters to obtain the grouting pressure process curve and the grouting flow process curve.

[0046] Optionally, the identification of multiple sets of sections with questionable grouting effects based on the road repair grouting data cloud atlas includes:

[0047] For each pavement repair grouting data cloud map in the pavement repair grouting data cloud map set, the following operations shall be performed:

[0048] The road grouting sections were extracted sequentially from multiple road grouting sections in the road repair grouting data cloud map. Based on the extracted road grouting sections, the section pressure curve and section flow curve were confirmed from the grouting flow process curve and grouting pressure process curve, respectively.

[0049] The total grouting volume and depth of the section are obtained from the section flow curve. The unit grouting volume is calculated based on the total grouting volume and depth of the section. The unit grouting volume is the value obtained by dividing the total grouting volume of the section by the section depth.

[0050] Obtain the actual pressure value set of the section based on the section pressure curve, and count the number of actual pressure values ​​of the section in the actual pressure value set;

[0051] The average grouting pressure is calculated based on the set of actual pressure values ​​of the section and the number of actual pressure values ​​of the section. The pressure-flow coupling coefficient is calculated based on the set of actual pressure values ​​of the section, the preset normal pressure value sequence, and the number of actual pressure values ​​of the section.

[0052] If the unit grout intake, average grouting pressure, and pressure-flow coupling coefficient do not meet the preset standard parameter range conditions, then the road grouting section will be marked as a key suspicious area to obtain a grout loss type suspicious area.

[0053] If the unit grout intake, average grouting pressure, and pressure-flow coupling coefficient meet the preset standard parameter range conditions, then the number of pulse erosion events in the road grouting section is obtained. If the number of pulse erosion events is greater than the preset normal pulse number, then the road grouting section is marked with a warning suspicious area to obtain a permeability-difficult suspicious area.

[0054] Areas with suspected grout loss or poor penetration are designated as sections with suspected grouting effects. These sections are then summarized to obtain a set of sections with suspected grouting effects. Finally, multiple sets of sections with suspected grouting effects are obtained.

[0055] Optionally, the step of calculating the pressure-flow coupling coefficient based on the actual pressure value set of the section, the preset normal pressure value sequence, and the number of actual pressure values ​​of the section includes:

[0056] The maximum and minimum normal pressure values ​​are determined based on the normal pressure value sequence. The pressure-flow coupling coefficient is then calculated based on the actual pressure value set for the section, the normal pressure value sequence, the number of actual pressure values ​​for the section, the maximum normal pressure value, and the minimum normal pressure value. The formula for calculating the pressure-flow coupling coefficient is shown below:

[0057]

[0058] in, Indicates the pressure-flow coupling coefficient. This represents the normal pressure value in the normal pressure value sequence. This represents the actual pressure value of a section where the actual pressure values ​​are concentrated. This indicates the maximum normal pressure value. This indicates the minimum normal pressure value. This indicates the actual pressure value of the section.

[0059] To achieve the above objectives, the present invention also provides a cement grouting drilling rig and construction system, comprising:

[0060] The road surface drilling location determination module is used to identify the road surface to be repaired, obtain the road base structure model based on the road surface to be repaired, perform sensor zero-point calibration on the pre-constructed cement grouting drilling rig, obtain the calibrated cement grouting drilling rig, and determine the precise location set of road surface drilling according to the preset design drawings.

[0061] The depth zone segmentation module performs the following operations for each precise location of a road borehole in the set of precise road borehole locations: It moves the calibrated cement grouting drilling rig to the precise location of the road borehole, obtains the drilling rig to be drilled, receives drilling commands, and creates a road repair grouting data cloud map based on the drilling commands, the precise location of the road borehole, the road base structure model, the drilling rig to be drilled, and the road surface to be repaired. It then summarizes the road repair grouting data cloud maps to obtain the road repair grouting data cloud map set corresponding to the set of precise road borehole locations. The precise location of the road borehole and the road repair grouting data cloud map are then considered together. Figure 1 One-to-one correspondence;

[0062] The suspicious section identification module is used to identify multiple suspicious grouting effect sections based on the road repair grouting data cloud map atlas. The road repair grouting data cloud map corresponds one-to-one with the suspicious grouting effect section set, and the suspicious grouting effect section set includes one or more suspicious grouting effect sections.

[0063] The construction completion module is used to complete the cement grouting drilling construction based on multiple sets of sections with questionable grouting effects.

[0064] To address the above problems, the present invention also provides an electronic device, the electronic device comprising:

[0065] Memory, storing at least one instruction;

[0066] The processor executes the instructions stored in the memory to implement the cement grouting drilling rig construction method described above.

[0067] To address the aforementioned problems, the present invention also provides a computer-readable storage medium storing at least one instruction, which is executed by a processor in an electronic device to implement the cement grouting drilling rig construction method described above.

[0068] To address the problems described in the background art, this invention, by identifying the road surface to be repaired, ensures that the key equipment and construction targets required for construction are clearly defined, avoiding problems such as construction chaos and delays caused by uncertainty in equipment and location. Only by determining suitable equipment and accurate construction locations can the smooth progress of construction be guaranteed. Based on the road surface to be repaired, a road base structure model is obtained, and the sensor zero-point calibration of the pre-constructed cement grouting drilling rig is performed to obtain a calibrated cement grouting drilling rig. The precise set of drilling locations is determined according to the preset design drawings. By obtaining the road base structure model of the road surface to be repaired, construction personnel can understand the geological structure, rock characteristics, soil layer distribution, and other information of the construction area in advance. This helps to rationally plan the construction scheme, select appropriate drilling parameters, and avoid problems during drilling. In the event of unexpected geological conditions that damage equipment or hinder construction progress, the following operations are performed for each precise location of the road surface borehole in the precise location set: The calibrated cement grouting drilling rig is moved to the precise location of the road surface borehole to obtain the drilling rig to be drilled. Drilling commands are received. Based on the drilling commands, the precise location of the road surface borehole, the road base structure model, the drilling rig to be drilled, and the road surface to be repaired, a road repair grouting data cloud map is created. Construction personnel can monitor the grouting process in real time through the road repair grouting data cloud map, promptly detect abnormalities, and take corresponding measures to adjust, improving the quality and efficiency of grouting construction. The road repair grouting data cloud map is then summarized to obtain the road repair grouting data cloud map set corresponding to the precise location set of the road surface boreholes. The precise location of the road surface borehole and the road repair grouting data cloud map are... Figure 1 In this invention, road repair grouting data cloud maps are compiled to form a road repair grouting data cloud map set that corresponds one-to-one with the precise location of road boreholes. This compilation method facilitates comprehensive and systematic analysis and management of the grouting status of each borehole. Construction personnel can compare the grouting effects of different boreholes based on this data, summarize experiences and lessons learned, and provide a reference for subsequent construction. Based on the road repair grouting data cloud map set, multiple sets of sections with questionable grouting effects are identified. The road repair grouting data cloud map corresponds one-to-one with the sets of sections with questionable grouting effects, and the sets of sections with questionable grouting effects include... This invention addresses one or more sections with questionable grouting effects. Based on these multiple sections, cement grouting drilling is performed. In road construction scenarios, these sections may exhibit issues such as insufficient grouting of the road base or subgrade, or uneven grout distribution. These issues can easily lead to later road surface defects such as subsidence, cracks, and loosening. Timely identification of these questionable sections allows construction personnel to take remedial measures such as adding grout and adjusting injection pressure immediately, preventing quality problems from being exposed only after road construction acceptance. This ensures the overall quality of the road grouting reinforcement project. Therefore, this invention can improve the intelligence and precision of drilling grouting operations in road construction scenarios. Attached Figure Description

[0069] Figure 1 This is a schematic flowchart of a cement grouting drilling method according to an embodiment of the present invention.

[0070] Figure 2 This is a functional block diagram of a cement grouting drilling rig construction system provided in an embodiment of the present invention;

[0071] Figure 3 This is a schematic diagram of the structure of an electronic device for implementing the cement grouting drilling method according to an embodiment of the present invention;

[0072] Figure 4 This is a simplified structural diagram of a cement grouting drilling rig, which is part of a cement grouting drilling rig construction method according to an embodiment of the present invention.

[0073] Explanation of reference numerals in the attached figures:

[0074] 1. Electronic equipment; 10. Processor; 11. Memory; 12. Bus; 200. Grout circulation system; 201. Grouting pump; 202. Drill rod; 203. Drill bit.

[0075] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0076] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0077] This application provides a method for constructing a cement grouting drilling rig. The execution entity of the cement grouting drilling rig construction method includes, but is not limited to, at least one of the following electronic devices that can be configured to execute the method provided in this application embodiment: a server, a terminal, etc. In other words, the cement grouting drilling rig construction method can be executed by software or hardware installed on a terminal device or a server device, and the software can be a blockchain platform. The server includes, but is not limited to, a single server, a server cluster, a cloud server, or a cloud server cluster.

[0078] Reference Figure 1 The diagram shown is a flowchart illustrating a cement grouting drilling rig construction method according to an embodiment of the present invention. In this embodiment, the cement grouting drilling rig construction method includes:

[0079] S1. Identify the road surface to be repaired, obtain the road base structure model based on the road surface to be repaired, perform sensor zero-point calibration on the pre-constructed cement grouting drilling rig, obtain the calibrated cement grouting drilling rig, and determine the precise location set of road drilling holes according to the preset design drawings.

[0080] Specifically, the cement grouting drilling rig includes a grout circulation system 200, a grouting pump 201, a drill rod 202, and a drill bit 203.

[0081] It should be explained that a cement grouting drilling rig is a specialized piece of equipment used for drilling holes and injecting cement grout, primarily applied in road engineering for the treatment of pavement and subgrade defects. The pavement to be repaired refers to the specific locations of pavement and subgrade defects requiring cement grouting reinforcement. These specific subgrade defects include areas with concentrated pavement cracks, subsidence, and loosening, as well as critical sections with insufficient subgrade bearing capacity and weak impermeability. The drill bit is the front-end component of the cement grouting drilling rig, used to drill holes in the pavement to be repaired, providing a channel for subsequent grouting operations. The grouting pump is another component of the cement grouting drilling rig, used to transport cement slurry from the ground to the drill bit, which then injects it into the holes to achieve the purposes of soil reinforcement and impermeability. The slurry circulation system refers to the equipment and piping system used in the grouting process to prepare, transport, and recover the slurry, recovering excess slurry and reducing waste and environmental pollution. This invention relates to a cement grouting drilling rig, comprising a slurry circulation system, a drill bit, a drill rod, and a grouting pump. One end of the drill rod is connected to the drill bit, and the other end is connected to the grouting pump, which is then connected to the slurry circulation system, forming a complete grouting circuit. For detailed structure, please refer to [reference needed]. Figure 4 The diagram shows a simplified structure of a cement grouting drilling rig.

[0082] Understandably, the road base structure model is a three-dimensional geological structure model constructed based on the geological survey data of the road surface to be repaired. It includes information such as the type, distribution, depth, and resistance strength of the strata, used to guide construction. Sensor zero-point calibration is the operation of adjusting all sensors to zero, ensuring that various sensors on the drilling rig (such as pressure sensors, flow sensors, and position sensors) are in an accurate state before construction. The cement grouting drilling rig of this invention is equipped with pressure sensors, flow sensors, and position sensors to monitor pressure, flow rate, and obtain the position of the cement grouting drilling rig during construction. Calibrating the cement grouting drilling rig refers to the drilling rig after sensor zero-point calibration, ensuring that it can provide accurate measurement data and a stable operating state during construction. Design drawings are detailed construction plans drawn up before construction based on the geological conditions and construction requirements of the road surface to be repaired.

[0083] S2. Perform the following operation on each precise location of a road borehole in the precise location set:

[0084] It should be explained that the precise location set of road surface boreholes refers to the collection of precise locations of each road surface borehole determined according to the design drawings. In this invention, the precise locations of road surface boreholes are represented in coordinate form, ensuring that the calibrated cement grouting drilling rig can accurately move to each predetermined borehole location.

[0085] S3. Move the calibrated cement grouting drilling rig to the precise location of the road surface drilling hole to obtain the drilling rig to be drilled, receive the drilling command, and create a road surface repair grouting data cloud map based on the drilling command, the precise location of the road surface drilling hole, the road base structure model, the drilling rig to be drilled, and the road surface to be repaired.

[0086] In detail, the creation of a pavement repair grouting data cloud map based on drilling commands, precise location of pavement boreholes, pavement base structure model, drilling rig to be drilled, and pavement to be repaired includes:

[0087] Based on the drilling instructions, the precise location of the road surface boreholes, and the drilling rig to be drilled, drilling operations are carried out on the road surface to be repaired to obtain the initial drilling depth;

[0088] When the initial drilling depth is equal to the preset standard drilling depth, the drilling parameters and the drilling holes of the road surface to be grouted are obtained. The drilling parameters include: torque, vibration frequency, drilling speed and drilling pressure.

[0089] Draw the pavement structure layer resistance profile based on the borehole parameters, and obtain the accurate pavement structure layer resistance profile based on the pavement base structure model and the pavement structure layer resistance profile.

[0090] The optimal cement slurry viscosity is obtained based on the grouting pump and the pre-constructed slurry circulation system. The strata are divided according to the accurate pavement structure layer resistance profile to obtain multiple depth zones.

[0091] Extract a depth zone from multiple depth zones sequentially, and obtain the stratigraphic type of the depth zone based on the extracted depth zone;

[0092] Initial parameters are obtained based on the formation type in the depth zone and the optimal cement slurry viscosity. These initial parameters include initial pressure and initial flow rate.

[0093] Based on the initial parameters, grouting pump, drilling of the road surface to be grouted, and drill bit, single-segment grouting parameters are obtained. The single-segment grouting parameters are summarized to obtain a single-segment grouting parameter set. The single-segment grouting parameter set includes multiple single-segment grouting parameters, and each single-segment grouting parameter corresponds one-to-one with a depth zone.

[0094] Based on the single-segment grouting parameter set, the grouting pressure process curve and the grouting flow rate process curve are plotted. Based on the grouting pressure process curve, the grouting flow rate process curve and the accurate pavement structure layer resistance profile, a pavement repair grouting data cloud map is created. The pavement repair grouting data cloud map includes multiple pavement grouting sections.

[0095] It needs to be explained that the drilling command is an instruction issued by the operator to instruct the drilling rig to begin drilling operations. The drilling rig to be drilled refers to a calibrated cement grouting drilling rig that has completed sensor zero-point calibration and moved to the precise drilling position on the road surface. The initial drilling depth refers to the depth to which the hole has already been drilled. Drilling operations refer to the process by which the drilling rig drills holes in the road surface to be repaired according to the drilling command, including the rotation and downward pressure of the drill bit to create a hole. The standard drilling depth is the drilling depth preset according to the design drawings and construction requirements. The hole to be grouted refers to a hole that has completed drilling operations and reached the standard drilling depth, ready for grouting operations. Torque refers to the rotational torque experienced by the drill bit during drilling, used to reflect the hardness of the stratum and the difficulty of drilling. Vibration frequency refers to the vibration frequency generated by the drill bit during drilling, used to monitor the stability of the drilling process. A higher vibration frequency indicates that unstable strata or drill bit wear has been encountered during drilling. Drilling speed refers to the depth the drill bit penetrates per unit time, used to evaluate drilling efficiency. Drilling pressure refers to the downward pressure exerted on the drill bit during the drilling process, and is used to control the drilling depth and speed.

[0096] Importantly, obtaining the accurate pavement structure layer resistance profile based on the pavement base structure model and the pavement structure layer resistance profile refers to comparing the drilling parameters in the pavement structure layer resistance profile with the parameters in the pavement base structure model, adjusting and refining the parameters in the pavement base structure model to obtain the accurate pavement structure layer resistance profile. The optimal cement grout viscosity refers to the cement grout viscosity at which the viscosity reaches the preset standard cement grout viscosity. The standard cement grout viscosity refers to the grout viscosity preset according to the stratum of the borehole in the pavement to be grouted, ensuring that the grout can be smoothly injected into the stratum to fill cracks and pores. The optimal cement grout viscosity of this invention ensures that the grout is effectively injected into the stratum and achieves the best construction effect. Stratum division refers to the operation of dividing the depth range of the pavement to be repaired into multiple layers with different stratum characteristics based on the accurate pavement structure layer resistance profile, optimizing grouting parameters for different stratum characteristics, and improving construction effect. The depth zone refers to the depth range with different stratum characteristics obtained through stratum division. The creation of the pavement repair grouting data cloud map described in this invention is essentially a deep data fusion based on existing data processing and visualization technologies. Its core technical approach is to use borehole depth as a unified coordinate axis, structurally linking and aligning the geological information revealed by the precise pavement structural layer resistance profile with the information recorded by the grouting pressure and flow rate process curves, integrating them into the same database table. At the visualization level, mature heatmap technology and symbol systems are directly applied to map key grouting parameters such as unit grout absorption into a color cloud map distributed along the depth, and icons are superimposed to mark abnormal events such as pulse erosion. Ultimately, a comprehensive image is generated that intuitively compares and couples the geological characteristics and grouting response, thus providing a data view for grouting quality assessment and regrouting decisions. The pavement repair grouting data cloud map refers to an image with borehole depth as the unified vertical axis, overlaid with the precise pavement structural layer resistance profile on the left, and the right side mapping the unit grout absorption in heatmap form, with icons marking the pressure-flow rate coupling state.

[0097] It should be explained that the drilling depth range refers to the specific depth range corresponding to the extracted depth zone, defining the starting and ending depths of that depth zone. The stratum type of the depth zone refers to the type of strata within the extracted depth zone. For example, the stratum type of the depth zone could be: loose soil, sand and gravel layer, strongly weathered rock layer, micro-fractured rock layer, or dense and intact rock layer. The single-segment grouting parameter set refers to the collection of single-segment grouting parameters encompassing all depth zones.

[0098] Specifically, obtaining the initial parameters based on the formation type and optimal cement slurry viscosity in the depth zone includes:

[0099] Based on the stratum type in the depth zone, the pavement stratum resistance strength is determined from the precise pavement structure layer resistance profile. The stratum type in the depth zone, the pavement stratum resistance strength, and the optimal cement slurry viscosity are used as the current parameters.

[0100] The search is performed in the pre-constructed formation slurry interaction table based on the current parameters to obtain the search results, which indicate whether the search was successful or failed.

[0101] If the search result is successful, the initial pressure and initial flow rate are determined from the formation slurry interaction table based on the current parameters.

[0102] If the search result is a search failure, then according to the stratum type of the depth zone, the data row set of the same stratum type is obtained from the stratum slurry interaction table, and according to the pavement stratum resistance strength, the data row set of similar pavement resistance strength is obtained from the data row set of the same stratum type.

[0103] Based on the optimal cement slurry viscosity, similar slurry viscosity data sets are obtained from the parameter set of the same stratum type. The similar pavement resistance strength data sets and similar slurry viscosity data sets are integrated to obtain similar data sets.

[0104] Calculate the Euclidean distance between the current parameter and each similar data row in the similar data row set to obtain the Euclidean distance set. Obtain the neighbor distance set from the Euclidean distance set, where the number of neighbor distances in the neighbor distance set is less than the number of Euclidean distances in the Euclidean distance set.

[0105] The initial pressure and initial flow rate are calculated based on the nearest distance set and the similar data row set.

[0106] It should be explained that the road stratum resistance strength refers to the strength of the stratum to resist damage when subjected to external forces. The stratum slurry interaction table is a pre-built database that records the interaction relationships between different stratum types and different slurry parameters (such as viscosity). By consulting the stratum slurry interaction table, it is possible to determine which viscosity and flow rate of slurry will achieve the best construction results for a given stratum type. The same stratum type data row set refers to the collection of all data rows in the stratum slurry interaction table that match the stratum type of the current depth zone. By extracting the same stratum type data row set, the search scope can be narrowed, and data related to the current stratum type can be obtained, improving search efficiency and accuracy. A data row in the stratum slurry interaction table includes stratum type, slurry viscosity, resistance strength, pressure, and flow rate, and the values ​​corresponding to stratum type, slurry viscosity, resistance strength, pressure, and flow rate are all integers. Determining the initial pressure and initial flow rate from the stratum slurry interaction table based on the current parameters means retrieving the grouting pressure and flow rate corresponding to the current parameters from the stratum slurry interaction table; these are the initial pressure and initial flow rate. If the search result is successful, it means that the pavement stratum resistance strength and optimal cement grout viscosity in the current parameters are both integers. If the search result is unsuccessful, it means that the pavement stratum resistance strength and optimal cement grout viscosity in the current parameters are not both integers. In this invention, the grout viscosity and resistance strength in the stratum-grout interaction table are all integers. The purpose is that integer comparison is the fastest and most basic operation at the computer's lowest level. When the system needs to match initial parameters for the current working condition, it performs an exact match query on the integer primary key or index field, which is faster than range matching or fuzzy querying on floating-point numbers (decimals). This meets the stringent requirements of real-time control of the grouting process and avoids control lag caused by data retrieval delays. Meanwhile, the raw data collected by field sensors (such as resistance strength 2.37, viscosity 1.84) inevitably contains slight fluctuations and measurement errors. If the table uses decimals, these slight fluctuations may cause the query results to jump between multiple similar rows, resulting in unstable parameter recommendations. However, if integers are used, these meaningless slight fluctuations can be ignored.

[0107] Understandably, the similar pavement resistance strength data set is a collection of data rows selected from the same stratum type data set, where the pavement stratum resistance strength is similar to the current pavement stratum resistance strength (e.g., the integer parts of the pavement stratum resistance strength and the current pavement stratum resistance strength are the same). The similar slurry viscosity data set is a collection of data rows selected from the same stratum type data set, where the slurry viscosity data is similar to the slurry viscosity data in the same stratum type data set corresponding to the current stratum resistance strength (e.g., the integer parts of the slurry viscosity data in the same stratum type data set corresponding to the current stratum resistance strength). Integration refers to the operation of merging the similar pavement stratum resistance strength data set and the similar slurry viscosity data set into one set. The purpose of integration is to centralize the data most relevant to the current construction conditions, facilitating subsequent analysis and calculation. The similar data set is the integrated dataset. The Euclidean distance set refers to the set of Euclidean distances obtained by calculating the Euclidean distance between the current parameter and each similar data row in the similar data set. The Euclidean distance set is used to quantify the similarity between the current parameter and similar data rows; the smaller the distance, the higher the similarity. Euclidean distance is existing technology and will not be elaborated upon here. Obtaining the nearest neighbor distance set from the Euclidean distance set refers to extracting the nearest neighbor distance set from the Euclidean distance set according to a preset number of distances. The number of distances refers to the pre-set value to be extracted from the nearest neighbor distance set.

[0108] Specifically, the calculation of the initial pressure and initial flow rate based on the nearest neighbor distance set and similar data row set includes:

[0109] Based on the nearest distance set, identify the nearest similar data row set from the similar data row set, extract the nearest similar data rows from the nearest similar data row set in turn, and calculate the similarity weight based on the extracted nearest similar data rows and the current parameters;

[0110] Summarize the similarity weights to obtain a similarity weight set, and calculate the total similarity weight based on the similarity weight set, where the total similarity weight is the sum of the similarity weight sets;

[0111] Obtain similar pressure value sets and similar flow value sets from the similar data row set. Calculate the initial pressure based on the similarity weight set, the similar pressure value set, and the total similarity weight. Calculate the initial flow based on the similarity weight set, the similar flow value set, and the total similarity weight.

[0112] It should be explained that the nearest similar data row set is the set of data rows most similar to the current parameters, selected from the similar data row set based on the nearest distance set. The step of calculating the similarity weight based on the extracted nearest similar data rows and the current parameters is as follows: Extract the stratum type, slurry viscosity, and pavement stratum resistance strength from the extracted nearest similar data rows. Subtract the corresponding values ​​of stratum type, slurry viscosity, and resistance strength from the stratum type in the depth zone, pavement stratum resistance strength, and optimal cement slurry viscosity in the current parameters to obtain the stratum type difference, resistance strength difference, and viscosity difference. Calculate the sum of the differences based on these values. The similarity weight = 1 / sum of differences. The stratum type difference refers to the absolute difference between the stratum type and the stratum type in the depth zone. The resistance strength difference refers to the absolute difference between the resistance strength and the pavement stratum resistance strength. The viscosity difference refers to the absolute difference between the slurry viscosity and the optimal cement slurry viscosity. The sum of differences refers to the sum of the differences in formation type, resistance strength, and viscosity. The similarity weight set is the set of similarity weights for all adjacent similar data rows. The similar pressure value set is the set of pressure values ​​extracted from the similar data row set for all adjacent similar data rows. The similar flow rate value set is the set of flow rate values ​​extracted from the similar data row set for all adjacent similar data rows. The formula for calculating the initial pressure in the step of calculating the initial pressure based on the similarity weight set, the similar pressure value set, and the total similarity weight is as follows:

[0113]

[0114] in, Indicates the initial pressure. This indicates the number of similar pressure values ​​in the set of similar pressure values. Represents the first in the set of similar pressure values A similar pressure value, The first in the similarity weight set Each similarity weight, This represents the total similarity weight. The method for calculating the initial flow rate based on the similarity weight set, the similar flow rate value set, and the total similarity weight is the same as the method for calculating the initial pressure based on the similarity weight set, the similar pressure value set, and the total similarity weight, and will not be repeated here.

[0115] Specifically, the process of obtaining single-segment grouting parameters based on initial parameters, grouting pump, boreholes in the pavement to be grouted, and drill bits includes:

[0116] The grouting pump is set using initial parameters to obtain the installed grouting pump. The start grouting command is received. The grouting operation is performed according to the start grouting command, the drill bit, and the installed grouting pump to drill the hole in the road surface to be grouted, and the initial actual pressure value of the drill bit is obtained.

[0117] If the initial actual drill bit pressure value is not within the preset expected drill bit pressure range, then the upper limit and lower limit of expected drill bit pressure are obtained based on the expected drill bit pressure range.

[0118] If the initial actual drill bit pressure value is less than the expected lower limit of drill bit pressure, the initial flow rate is increased using the pre-built step-increase algorithm to obtain the adjusted flow rate. The adjusted flow rate is used as the initial flow rate, and the process returns to the step of setting the grouting pump using the initial parameters until the initial actual drill bit pressure value is within the expected drill bit pressure range.

[0119] If the initial drill bit actual pressure value is equal to the expected upper limit of the drill bit pressure, then perform a millimeter-level response operation on the installed grouting pump until the initial drill bit actual pressure value is within the expected drill bit pressure range, obtain the calibrated grouting pump, use the calibrated grouting pump as the installed grouting pump, and return to the steps of performing grouting operation on the borehole of the road surface to be grouted according to the start grouting command, the drill bit and the installed grouting pump, until the pre-constructed borehole fullness command is received;

[0120] If the initial actual pressure value of the drill bit is within the expected pressure range of the drill bit, the pressure of the drill bit is monitored in real time until the borehole is saturated, and the single-segment grouting parameters are obtained. The single-segment grouting parameters include: grouting flow rate sequence, actual pressure sequence, and grouting time sequence. The grouting flow rate sequence includes multiple grouting flows, the actual pressure sequence includes multiple actual pressures, and the grouting time sequence includes multiple grouting times. The grouting flow rate, actual pressure, and grouting time correspond one-to-one.

[0121] It needs to be explained that the "installed grouting pump" refers to the grouting pump set according to the initial parameters. The "start grouting" command is a system-issued instruction that triggers the grouting pump to start and inject grout into the boreholes in the road surface to be grouted, based on the set initial parameters. The initial drill bit actual pressure value refers to the pressure value actually measured at the drill bit during the grouting operation. It is used to determine whether the pressure value obtained during the current grouting operation is within the expected pressure range of the drill bit, thus deciding whether to adjust the initial parameters. The expected drill bit pressure range is a pre-set pressure range used to ensure that the grouting operation is carried out within a safe and effective pressure range, avoiding problems caused by excessively low or high pressure. The upper limit of the expected drill bit pressure is the upper limit of the expected drill bit pressure range, representing the maximum allowable pressure. It is used to prevent excessive pressure and avoid damage to the strata or equipment. In grouting reinforcement construction, its fundamental purpose is to improve the original structure of the strata through grout filling and penetration, thereby enhancing its load-bearing and seepage prevention capabilities. However, using excessively high pressure for grouting can produce a phenomenon similar to hydraulic fracturing, leading to harmful uplift, deformation, or the formation of a disordered fracture network. This not only damages the original structure of the formation but also reduces its overall stability, contradicting the purpose of reinforcement. Furthermore, it causes ineffective grout loss, resource waste, and may lead to construction risks such as stuck drill, drill bit burial, or equipment overload due to sudden changes in the formation. Therefore, strictly controlling the pressure within the expected upper limit is a key safety measure to ensure effective reinforcement rather than harmful damage during the grouting process. The expected lower limit of drill bit pressure is the lower limit of the expected pressure range of the drill bit, representing the minimum allowable pressure, used to ensure that the pressure is high enough to guarantee effective grout injection into the formation. The step-increment algorithm is an algorithm used to gradually increase the flow rate. This invention uses the step-increment algorithm for flow rate adjustment, aiming to achieve precise and safe control of the grouting process. When the formation has strong grout absorption capacity and the actual pressure is low, a sudden and significant increase in flow rate can easily cause shock damage to the formation, leading to ineffective grout loss along a single channel and causing oscillations in the control system. This algorithm, by employing a strategy of gradually increasing the flow rate in small increments, adapts to formation characteristics, avoiding the aforementioned risks while smoothly and accurately controlling the actual pressure value to within the expected pressure range, thus ensuring the safety and effectiveness of grouting operations. Adjusting the flow rate refers to updating the grouting pump's flow rate setting using a step-increment algorithm to ensure the actual drill bit pressure value is within the expected drill bit pressure range. Millimeter-level response operation is an operation that completes the transition from pressure detection to actuator action within milliseconds, used to fine-tune the grouting pump's pressure or flow rate to ensure the actual drill bit pressure value is within the expected drill bit pressure range. Grouting pump calibration refers to the grouting pump adjusted using millimeter-level response operation, enabling more accurate control of pressure and flow rate during the grouting process. The borehole full command is an operator-issued command indicating that the corresponding depth zone of the borehole has been completely filled with grout. This command ends the grouting operation at the current depth zone and initiates the grouting process for the next depth zone.A grouting flow rate sequence refers to the sequence of all grouting flow rates recorded during the grouting process. It is used to analyze and record flow rate changes during grouting, providing data for subsequent engineering evaluation. An actual pressure sequence refers to the sequence of all actual pressures recorded during the grouting process. It is used to analyze and record pressure changes during grouting. A grouting time sequence refers to the sequence of all time points recorded during the grouting process, used to record the time progress of the grouting operation. Grouting flow rate refers to the volume of grout injected into the borehole per unit time during the grouting process. Actual pressure refers to the pressure value actually measured at the drill bit during the grouting process. Grouting time refers to the corresponding time points in the grouting time sequence and the actual pressure sequence.

[0122] Specifically, the step of plotting the grouting pressure process curve and the grouting flow rate process curve based on the single-segment grouting parameter set includes:

[0123] A grouting process coordinate system is constructed based on grouting duration, grouting flow rate, and actual pressure. The grouting process coordinate system has grouting duration as the horizontal axis and grouting flow rate and actual pressure as the vertical axis.

[0124] The single-segment grouting parameters are extracted sequentially from the single-segment grouting parameter set. Based on the extracted single-segment grouting parameters, the single-segment grouting pressure process curve and the single-segment grouting flow rate process curve are plotted in the grouting process coordinate system.

[0125] The single-segment grouting pressure process curve and the single-segment grouting flow process curve are summarized separately to obtain a set of single-segment grouting pressure process curves and a set of single-segment grouting flow process curves. The single-segment grouting pressure process curve set and the single-segment grouting flow process curve set are spliced ​​together according to the order of extraction of single-segment grouting parameters to obtain the grouting pressure process curve and the grouting flow process curve.

[0126] It should be explained that the grouting process coordinate system is a two-dimensional coordinate system used to describe the changes in flow rate and pressure over time during the grouting process. This coordinate system allows for a visual representation of the changes in flow rate and pressure during grouting, facilitating the analysis and evaluation of the grouting effect. The phrase "drawing a single-segment grouting process curve based on single-segment grouting parameters in the grouting process coordinate system" refers to importing the single-segment grouting parameters into a drawing tool to draw the single-segment grouting process curve. A single-segment grouting process curve describes the changes in flow rate and pressure over time during a specific grouting segment. The single-segment grouting process curve set is a collection of all single-segment grouting process curves, encompassing the changes in flow rate and pressure at each depth level throughout the entire grouting process, providing the fundamental data for ultimately drawing the complete grouting process curve. The grouting process curve is a complete curve describing the changes in flow rate and pressure over time throughout the entire grouting process. Through the grouting process curve, a comprehensive understanding of the dynamic changes throughout the entire grouting process can be achieved, facilitating the evaluation of the overall grouting project's effectiveness and quality. The process of splicing the single-segment grouting pressure process curve set and the single-segment grouting flow process curve set according to the order of extracting the single-segment grouting parameters refers to the operation of splicing each single-segment grouting pressure process curve and the single-segment grouting flow process curve end-to-end according to the order of extracting the single-segment grouting parameters. The grouting pressure process curve is the curve obtained by splicing the single-segment grouting pressure process curves in the single-segment grouting pressure process curve set end-to-end. The grouting flow process curve is the curve obtained by splicing the single-segment grouting flow process curves in the single-segment grouting flow process curve set end-to-end. This invention divides the borehole into zones and controls them precisely, breaking through the traditional thinking of treating the borehole as a homogeneous body. It achieves a fundamental shift from uniform grouting to zoned customization. Its beneficial effects are: it can ensure that the grout effectively fills the loose formation rather than ineffectively loses it, and effectively penetrates the dense formation rather than blindly overpressurizing it, while strictly preventing the risk of formation fracturing due to pressure runaway. Ultimately, a uniform, continuous, and reliable solidified body was formed throughout the entire drilling depth, significantly improving the overall quality of the foundation treatment and the safety of the project.

[0127] S4. Summarize the pavement repair grouting data cloud map to obtain the pavement repair grouting data cloud map set corresponding to the precise location set of pavement boreholes. The precise location of the pavement boreholes and the pavement repair grouting data cloud map are then compared. Figure 1 One-to-one correspondence.

[0128] It should be explained that the pavement repair grouting data cloud atlas refers to a collection of pavement repair grouting data cloud maps generated for each precise location of a pavement borehole in the set of precise locations. This collection contains a visual representation of the grouting process and stratum information for all borehole locations, providing data support for a comprehensive evaluation of the grouting effect in the entire construction area.

[0129] S5. Based on the road repair grouting data cloud map atlas, multiple sets of sections with questionable grouting effects were identified. Among them, the road repair grouting data cloud map and the sets of sections with questionable grouting effects correspond one-to-one. Each set of sections with questionable grouting effects includes one or more sections with questionable grouting effects.

[0130] Specifically, the data cloud atlas based on pavement repair grouting identified multiple sets of sections with questionable grouting effects, including:

[0131] For each pavement repair grouting data cloud map in the pavement repair grouting data cloud map set, the following operations shall be performed:

[0132] The road grouting sections were extracted sequentially from multiple road grouting sections in the road repair grouting data cloud map. Based on the extracted road grouting sections, the section pressure curve and section flow curve were confirmed from the grouting flow process curve and grouting pressure process curve, respectively.

[0133] The total grouting volume and depth of the section are obtained from the section flow curve. The unit grouting volume is calculated based on the total grouting volume and depth of the section. The unit grouting volume is the value obtained by dividing the total grouting volume of the section by the section depth.

[0134] Obtain the actual pressure value set of the section based on the section pressure curve, and count the number of actual pressure values ​​of the section in the actual pressure value set;

[0135] The average grouting pressure is calculated based on the set of actual pressure values ​​of the section and the number of actual pressure values ​​of the section. The pressure-flow coupling coefficient is calculated based on the set of actual pressure values ​​of the section, the preset normal pressure value sequence, and the number of actual pressure values ​​of the section.

[0136] If the unit grout intake, average grouting pressure, and pressure-flow coupling coefficient do not meet the preset standard parameter range conditions, then the road grouting section will be marked as a key suspicious area to obtain a grout loss type suspicious area.

[0137] If the unit grout intake, average grouting pressure, and pressure-flow coupling coefficient meet the preset standard parameter range conditions, then the number of pulse erosion events in the road grouting section is obtained. If the number of pulse erosion events is greater than the preset normal pulse number, then the road grouting section is marked with a warning suspicious area to obtain a permeability-difficult suspicious area.

[0138] Areas with suspected grout loss or poor penetration are designated as sections with suspected grouting effects. These sections are then summarized to obtain a set of sections with suspected grouting effects. Finally, multiple sets of sections with suspected grouting effects are obtained.

[0139] It should be explained that: The section pressure curve refers to the curve showing the actual pressure change over time during the grouting process within the extracted pavement grouting section. The section flow rate curve refers to the curve showing the flow rate change over time during the grouting process within the extracted pavement grouting section. The total grouting volume of the section refers to the value obtained by integrating the curve corresponding to each time interval on the section flow rate curve within the extracted pavement grouting section, and then summing the values ​​calculated for each time interval. The section depth refers to the length of the extracted pavement grouting section. The section actual pressure value set refers to the set of all actual pressure values ​​recorded during the grouting process within the extracted pavement grouting section. The number of section actual pressure values ​​refers to the total number of actual pressure values ​​recorded during the grouting process within the extracted pavement grouting section. The average grouting pressure refers to the average value of all actual pressure values ​​during the grouting process within the extracted pavement grouting section. The condition that the unit grout intake, average grouting pressure, and pressure-flow coupling coefficient do not meet the preset standard parameter range means that the unit grout intake is not within the preset standard unit grout intake range, the average grouting pressure is not within the preset standard average grouting pressure range, and the pressure-flow coupling coefficient is not within the preset coupling coefficient range.

[0140] Importantly, the standard unit grout absorption range, standard average grouting pressure range, and coupling coefficient range refer to the pre-defined ranges for unit grout absorption, average grouting pressure, and pressure-flow coupling coefficient, respectively. If the unit grout absorption, average grouting pressure, and pressure-flow coupling coefficient all fail to meet the pre-defined standard parameter range conditions, the section is determined to have a grout loss defect, indicating the presence of cavities or wide fissures in the stratum leading to ineffective grout loss, which will affect the foundation's bearing capacity and seepage prevention performance. If the unit grout absorption, average grouting pressure, and pressure-flow coupling coefficient meet the pre-defined standard parameter range conditions, but the number of pulse erosion events is greater than the pre-defined number of normal pulses, the section is determined to have a permeability difficulty defect, indicating that dense strata or micro-fractures make it difficult for grout to effectively permeate, and even if grouting is completed through repeated erosion, a weak point in the reinforcement will still form at that location. The normal pressure value sequence refers to a sequence set according to engineering design and experience, reflecting the normal pressure changes during the grouting process. The normal pressure value sequence of this invention includes multiple normal pressure values, and each normal pressure value corresponds one-to-one with the actual pressure value of the section. The "key suspicious marking" of pavement grouting sections refers to marking the corresponding pavement grouting sections on the pavement repair grouting data cloud map with red boxes for further inspection and handling. Suspicious grout loss areas refer to pavement grouting sections where the unit grout absorption, average grouting pressure, and pressure-flow coupling coefficient all fail to meet the preset standard parameter range conditions. The number of pulse erosion events refers to the number of pulse erosion events recorded during the grouting process. A pulse erosion event is an automatic unblocking operation triggered by the system when it detects a blockage in the grouting channel leading to a sudden pressure increase. The frequency of pulse erosion events is negatively correlated with formation permeability. When the original permeability of the formation is good or the fracture opening is large, the grout can flow smoothly, and the system will not trigger pulse erosion. Conversely, when drilling operations are performed and encountering formations with well-developed microfractures, narrow channels, or dense rock masses (i.e., poor permeability), particles in the grout can easily form a bridging effect at the entrance of the narrow channel, or the grout itself may be unable to penetrate effectively due to excessive flow resistance. This leads to a sudden increase in pipeline pressure, directly triggering pulse erosion events. These events directly reflect the narrowness of the grouting channel and the smoothness of grout flow. Using the number of pulse erosion events as a core quality control parameter has the following benefits: if the unit grout intake, average grouting pressure, and pressure-flow coupling coefficient meet the preset standard parameter range, but the number of pulse erosion events is greater than the preset normal pulse count, it can accurately reveal that the section has permeability difficulties due to the development of microfractures or dense rock masses. A higher number of pulse erosion events may indicate poorer formation permeability. The normal pulse count refers to a pre-set threshold for the number of normal pulse erosion events during grouting, used to determine whether abnormal pulse erosion phenomena occur in the pavement grouting section.

[0141] It should also be explained that if the unit grout absorption, average grouting pressure, and pressure-flow coupling coefficient meet the preset standard parameter range conditions, it means that the unit grout absorption is within the preset standard unit grout absorption range, the average grouting pressure is within the preset standard average grouting pressure range, and the pressure-flow coupling coefficient is within the preset coupling coefficient range. Marking a suspected grouting section with a warning sign means marking the corresponding grouting section on the pavement repair grouting data cloud map with a yellow box for further inspection and processing. A permeability-difficulty-type suspected area refers to a pavement grouting section where the unit grout absorption, average grouting pressure, and pressure-flow coupling coefficient meet the preset standard parameter range conditions, but the number of pulse erosion events is greater than the normal number of pulses, indicating that the section has a permeability-difficulty problem. For example, dense strata make it difficult for grout to permeate. The grouting effect suspected area set refers to the collection obtained by summarizing all grout loss-type and permeability-difficulty-type suspected areas, used for centralized management and analysis of all suspected areas, providing a basis for subsequent remedial measures.

[0142] Specifically, the calculation of the pressure-flow coupling coefficient based on the actual pressure value set of the section, the preset normal pressure value sequence, and the number of actual pressure values ​​of the section includes:

[0143] The maximum and minimum normal pressure values ​​are determined based on the normal pressure value sequence. The pressure-flow coupling coefficient is then calculated based on the actual pressure value set for the section, the normal pressure value sequence, the number of actual pressure values ​​for the section, the maximum normal pressure value, and the minimum normal pressure value. The formula for calculating the pressure-flow coupling coefficient is shown below:

[0144]

[0145] in, Indicates the pressure-flow coupling coefficient. This represents the normal pressure value in the normal pressure value sequence. This represents the actual pressure value of a section where the actual pressure values ​​are concentrated. This indicates the maximum normal pressure value. This indicates the minimum normal pressure value. This indicates the actual pressure value of the section.

[0146] It should be explained that the maximum and minimum normal pressure values ​​refer to the maximum and minimum values ​​among all normal pressure values ​​in the normal pressure value sequence, respectively. The purpose of the pressure-flow coupling coefficient calculation formula is to shift the assessment of grouting quality from dependence on outcome parameters (such as total grouting volume) to a precise measurement of process stability and execution compliance. A higher pressure-flow coupling coefficient indicates more precise system control and a more normal formation response, while a low pressure-flow coupling coefficient directly and objectively reveals abnormal phenomena in the grouting process, thereby accurately locating hidden disease sections such as grout loss or difficulty in permeation, providing data basis for subsequent intelligent regrouting decisions.

[0147] S6. Based on multiple sets of sections with questionable grouting effects, complete the cement grouting drilling construction.

[0148] It should be noted that, based on multiple sets of sections with questionable grouting effects, construction personnel can take targeted measures to address these sections. This helps improve the overall quality and efficiency of grouting construction, ensuring that the construction achieves the expected reinforcement and seepage prevention effects, while also reducing construction risks.

[0149] To address the problems described in the background art, this invention, by identifying the road surface to be repaired, ensures that the key equipment and construction targets required for construction are clearly defined, avoiding problems such as construction chaos and delays caused by uncertainty in equipment and location. Only by determining suitable equipment and accurate construction locations can the smooth progress of construction be guaranteed. Based on the road surface to be repaired, a road base structure model is obtained, and the sensor zero-point calibration of the pre-constructed cement grouting drilling rig is performed to obtain a calibrated cement grouting drilling rig. The precise set of drilling locations is determined according to the preset design drawings. By obtaining the road base structure model of the road surface to be repaired, construction personnel can understand the geological structure, rock characteristics, soil layer distribution, and other information of the construction area in advance. This helps to rationally plan the construction scheme, select appropriate drilling parameters, and avoid problems during drilling. In the event of unexpected geological conditions that damage equipment or hinder construction progress, the following operations are performed for each precise location of the road surface borehole in the precise location set: The calibrated cement grouting drilling rig is moved to the precise location of the road surface borehole to obtain the drilling rig to be drilled. Drilling commands are received. Based on the drilling commands, the precise location of the road surface borehole, the road base structure model, the drilling rig to be drilled, and the road surface to be repaired, a road repair grouting data cloud map is created. Construction personnel can monitor the grouting process in real time through the road repair grouting data cloud map, promptly detect abnormalities, and take corresponding measures to adjust, improving the quality and efficiency of grouting construction. The road repair grouting data cloud map is then summarized to obtain the road repair grouting data cloud map set corresponding to the precise location set of the road surface boreholes. The precise location of the road surface borehole and the road repair grouting data cloud map are... Figure 1In this invention, road repair grouting data cloud maps are compiled to form a road repair grouting data cloud map set that corresponds one-to-one with the precise location of road boreholes. This compilation method facilitates comprehensive and systematic analysis and management of the grouting status of each borehole. Construction personnel can compare the grouting effects of different boreholes based on this data, summarize experiences and lessons learned, and provide a reference for subsequent construction. Based on the road repair grouting data cloud map set, multiple sets of sections with questionable grouting effects are identified. The road repair grouting data cloud map corresponds one-to-one with the sets of sections with questionable grouting effects, and the sets of sections with questionable grouting effects include... This invention addresses one or more sections with questionable grouting effects. Based on these multiple sections, cement grouting drilling is performed. In road construction scenarios, these sections may exhibit issues such as insufficient grouting of the road base or subgrade, or uneven grout distribution. These issues can easily lead to later road surface defects such as subsidence, cracks, and loosening. Timely identification of these questionable sections allows construction personnel to take remedial measures such as adding grout and adjusting injection pressure immediately, preventing quality problems from being exposed only after road construction acceptance. This ensures the overall quality of the road grouting reinforcement project. Therefore, this invention can improve the intelligence and precision of drilling grouting operations in road construction scenarios.

[0150] like Figure 2 The diagram shown is a functional block diagram of a cement grouting drilling rig construction system provided in an embodiment of the present invention.

[0151] The cement grouting drilling rig construction system 100 of this invention can be installed in an electronic device. Depending on the functions implemented, the cement grouting drilling rig construction system 100 may include a road surface drilling location determination module 101, a depth zone division module 102, a suspicious section identification module 103, and a construction completion module 104. The module described in this invention can also be called a unit, which refers to a series of computer program segments that can be executed by the processor of an electronic device and can perform a fixed function, and which are stored in the memory of the electronic device.

[0152] The road surface drilling location determination module 101 is used to identify the road surface to be repaired, obtain the road base structure model based on the road surface to be repaired, perform sensor zero-point calibration on the pre-constructed cement grouting drilling rig, obtain the calibrated cement grouting drilling rig, and determine the precise location set of road surface drilling according to the preset design drawings.

[0153] The depth zone division module 102 is used to perform the following operations on each precise location of a road borehole in the set of precise road borehole locations: move the calibrated cement grouting drilling rig to the precise location of the road borehole to obtain the drilling rig to be drilled, receive the drilling command, create a road repair grouting data cloud map based on the drilling command, the precise location of the road borehole, the road base structure model, the drilling rig to be drilled, and the road surface to be repaired, summarize the road repair grouting data cloud map, and obtain the road repair grouting data cloud map set corresponding to the set of precise road borehole locations, wherein the precise location of the road borehole and the road repair grouting data cloud map are... Figure 1 One-to-one correspondence;

[0154] The suspicious section identification module 103 is used to identify multiple suspicious grouting effect section sets based on the road repair grouting data cloud map atlas. The road repair grouting data cloud map corresponds one-to-one with the suspicious grouting effect section set, and the suspicious grouting effect section set includes one or more suspicious grouting effect sections.

[0155] The construction completion module 104 is used to complete the cement grouting drilling rig construction based on multiple sets of sections with questionable grouting effects.

[0156] In detail, the modules in the cement grouting drilling rig construction system 100 described in this embodiment of the invention adopt the same characteristics as described above during use. Figure 1 The construction method of the cement grouting drilling rig described in the article uses the same technical means and can produce the same technical effect, so it will not be repeated here.

[0157] like Figure 3 The diagram shown is a structural schematic of an electronic device for implementing a cement grouting drilling method according to an embodiment of the present invention.

[0158] The electronic device 1 may include a processor 10, a memory 11 and a bus 12, and may also include a computer program stored in the memory 11 and executable on the processor 10, such as a cement grouting drilling rig construction method program.

[0159] The memory 11 includes at least one type of readable storage medium, such as flash memory, portable hard drive, multimedia card, card-type memory (e.g., SD or DX memory), magnetic memory, magnetic disk, optical disk, etc. In some embodiments, the memory 11 can be an internal storage unit of the electronic device 1, such as the portable hard drive of the electronic device 1. In other embodiments, the memory 11 can be an external storage device of the electronic device 1, such as a plug-in portable hard drive, smart media card (SMC), secure digital card (SD), flash card, etc., equipped on the electronic device 1. Furthermore, the memory 11 includes both internal storage units and external storage devices of the electronic device 1. The memory 11 can be used not only to store application software and various types of data installed on the electronic device 1, such as the code of a cement grouting drilling rig construction method program, but also to temporarily store data that has been output or will be output.

[0160] In some embodiments, the processor 10 may be composed of integrated circuits, such as a single packaged integrated circuit or multiple integrated circuits with the same or different functions, including combinations of one or more central processing units (CPUs), microprocessors, digital processing chips, graphics processors, and various control chips. The processor 10 is the control unit of the electronic device, connecting various components of the entire electronic device through various interfaces and lines. It executes programs or modules (such as cement grouting drilling method programs) stored in the memory 11, and calls data stored in the memory 11 to perform various functions of the electronic device 1 and process data.

[0161] The bus 12 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus 12 can be divided into an address bus, a data bus, a control bus, etc. The bus 12 is configured to realize the connection and communication between the memory 11 and at least one processor 10, etc.

[0162] Figure 3 Only electronic devices with components are shown; it will be understood by those skilled in the art that... Figure 3The structure shown does not constitute a limitation on the electronic device 1, and may include fewer or more components than shown, or combine certain components, or have different component arrangements.

[0163] For example, although not shown, the electronic device 1 may also include a power supply (such as a battery) to power the various components. Preferably, the power supply can be logically connected to the at least one processor 10 through a power management device, thereby enabling functions such as charging management, discharging management, and power consumption management. The power supply may also include one or more DC or AC power supplies, recharging devices, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components. The electronic device 1 may also include various sensors, Bluetooth modules, Wi-Fi modules, etc., which will not be described in detail here.

[0164] Furthermore, the electronic device 1 may also include a network interface. Optionally, the network interface may include a wired interface and / or a wireless interface (such as a Wi-Fi interface, a Bluetooth interface, etc.), which is typically used to establish communication connections between the electronic device 1 and other electronic devices.

[0165] Optionally, the electronic device 1 may further include a user interface, which may be a display, an input unit (such as a keyboard), and optionally, a standard wired interface or a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, or an OLED (Organic Light-Emitting Diode) touchscreen, etc. The display may also be appropriately referred to as a screen or display unit, used to display information processed in the electronic device 1 and to display a visual user interface.

[0166] The cement grouting drilling rig construction method program stored in the memory 11 of the electronic device 1 is a combination of multiple instructions. When run in the processor 10, it can achieve the following:

[0167] Once the road surface to be repaired is identified, a road base structure model is obtained based on the road surface to be repaired. The sensor zero point of the pre-constructed cement grouting drilling rig is calibrated to obtain the calibrated cement grouting drilling rig. The precise location set of road drilling holes is determined according to the preset design drawings.

[0168] For each precise location of a road borehole in the precise location set, the following operations are performed:

[0169] The calibrated cement grouting drilling rig is moved to the precise location of the road drilling hole to obtain the drilling rig to be drilled. The drilling command is received, and a road repair grouting data cloud map is created based on the drilling command, the precise location of the road drilling hole, the road base structure model, the drilling rig to be drilled and the road surface to be repaired.

[0170] By summarizing the pavement repair grouting data cloud maps, a pavement repair grouting data cloud map set corresponding to the precise location set of pavement boreholes is obtained. The precise location of the pavement boreholes and the pavement repair grouting data cloud map are then compared. Figure 1 One-to-one correspondence;

[0171] Based on the road repair grouting data cloud map atlas, multiple sets of sections with questionable grouting effects were identified. Among them, the road repair grouting data cloud map and the sets of sections with questionable grouting effects correspond one-to-one. Each set of sections with questionable grouting effects includes one or more sections with questionable grouting effects.

[0172] Cement grouting drilling was completed based on multiple sections with questionable grouting effects.

[0173] Specifically, the processor 10's implementation method for the above instructions can be found in [reference needed]. Figures 1 to 4 The descriptions of the relevant steps in the corresponding embodiments are not repeated here.

[0174] Furthermore, if the modules / units integrated in the electronic device 1 are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. The computer-readable storage medium can be volatile or non-volatile. For example, the computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, or a read-only memory (ROM).

[0175] The present invention also provides a computer-readable storage medium storing a computer program, which, when executed by a processor of an electronic device, can perform the following:

[0176] Once the road surface to be repaired is identified, a road base structure model is obtained based on the road surface to be repaired. The sensor zero point of the pre-constructed cement grouting drilling rig is calibrated to obtain the calibrated cement grouting drilling rig. The precise location set of road drilling holes is determined according to the preset design drawings.

[0177] For each precise location of a road borehole in the precise location set, the following operations are performed:

[0178] The calibrated cement grouting drilling rig is moved to the precise location of the road drilling hole to obtain the drilling rig to be drilled. The drilling command is received, and a road repair grouting data cloud map is created based on the drilling command, the precise location of the road drilling hole, the road base structure model, the drilling rig to be drilled and the road surface to be repaired.

[0179] By summarizing the pavement repair grouting data cloud maps, a pavement repair grouting data cloud map set corresponding to the precise location set of pavement boreholes is obtained. The precise location of the pavement boreholes and the pavement repair grouting data cloud map are then compared. Figure 1 One-to-one correspondence;

[0180] Based on the road repair grouting data cloud map atlas, multiple sets of sections with questionable grouting effects were identified. Among them, the road repair grouting data cloud map and the sets of sections with questionable grouting effects correspond one-to-one. Each set of sections with questionable grouting effects includes one or more sections with questionable grouting effects.

[0181] Cement grouting drilling was completed based on multiple sections with questionable grouting effects.

[0182] In the embodiments provided by this invention, it should be understood that the disclosed devices, systems, and methods can be implemented in other ways. For example, the system embodiments described above are merely illustrative, and actual implementations may have other classification methods.

[0183] The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0184] Furthermore, the functional modules in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in the form of hardware plus software functional modules.

[0185] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0186] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A method for constructing a cement grouting drilling rig, characterized in that, include: Once the road surface to be repaired is identified, a road base structure model is obtained based on the road surface to be repaired. The sensor zero point of the pre-constructed cement grouting drilling rig is calibrated to obtain the calibrated cement grouting drilling rig. The precise location set of road drilling holes is determined according to the preset design drawings. For each precise location of a road borehole in the precise location set, the following operations are performed: The calibrated cement grouting drilling rig is moved to the precise location of the road drilling hole to obtain the drilling rig to be drilled. The drilling command is received, and a road repair grouting data cloud map is created based on the drilling command, the precise location of the road drilling hole, the road base structure model, the drilling rig to be drilled and the road surface to be repaired. The creation of a pavement repair grouting data cloud map based on drilling commands, precise location of pavement boreholes, pavement base structure model, drilling rig to be drilled, and pavement to be repaired includes: Based on the drilling instructions, the precise location of the road surface boreholes, and the drilling rig to be drilled, drilling operations are carried out on the road surface to be repaired to obtain the initial drilling depth; When the initial drilling depth is equal to the preset standard drilling depth, the drilling parameters and the drilling holes of the road surface to be grouted are obtained. The drilling parameters include: torque, vibration frequency, drilling speed and drilling pressure. Draw the pavement structure layer resistance profile based on the borehole parameters, and obtain the accurate pavement structure layer resistance profile based on the pavement base structure model and the pavement structure layer resistance profile. The optimal cement slurry viscosity is obtained based on the grouting pump and the pre-constructed slurry circulation system. The strata are divided according to the accurate pavement structure layer resistance profile to obtain multiple depth zones. Extract a depth zone from multiple depth zones sequentially, and obtain the stratigraphic type of the depth zone based on the extracted depth zone; Initial parameters are obtained based on the formation type in the depth zone and the optimal cement slurry viscosity. These initial parameters include initial pressure and initial flow rate. Based on the initial parameters, grouting pump, drilling of the road surface to be grouted, and drill bit, single-segment grouting parameters are obtained. The single-segment grouting parameters are summarized to obtain a single-segment grouting parameter set. The single-segment grouting parameter set includes multiple single-segment grouting parameters, and each single-segment grouting parameter corresponds one-to-one with a depth zone. Based on the single-segment grouting parameter set, grouting pressure process curves and grouting flow rate process curves are plotted. Based on the grouting pressure process curves, grouting flow rate process curves, and accurate pavement structure layer resistance profiles, a pavement repair grouting data cloud map is created. The pavement repair grouting data cloud map includes multiple pavement grouting sections. By summarizing the road surface repair grouting data cloud map, a road surface repair grouting data cloud map set corresponding to the precise location set of road surface boreholes is obtained. The precise location of the road surface boreholes corresponds one-to-one with the road surface repair grouting data cloud map. Based on the road repair grouting data cloud map atlas, multiple sets of sections with questionable grouting effects were identified. Among them, the road repair grouting data cloud map and the sets of sections with questionable grouting effects correspond one-to-one. Each set of sections with questionable grouting effects includes one or more sections with questionable grouting effects. Cement grouting drilling was completed based on multiple sections with questionable grouting effects.

2. The cement grouting drilling method as described in claim 1, characterized in that, The process of obtaining initial parameters based on the formation type and optimal cement slurry viscosity in the depth zone includes: Based on the stratum type in the depth zone, the pavement stratum resistance strength is determined from the precise pavement structure layer resistance profile. The stratum type in the depth zone, the pavement stratum resistance strength, and the optimal cement slurry viscosity are used as the current parameters. The search is performed in the pre-constructed formation slurry interaction table based on the current parameters to obtain the search results, which indicate whether the search was successful or failed. If the search result is successful, the initial pressure and initial flow rate are determined from the formation slurry interaction table based on the current parameters. If the search result is a search failure, then according to the stratum type of the depth zone, the data row set of the same stratum type is obtained from the stratum slurry interaction table, and according to the pavement stratum resistance strength, the data row set of similar pavement resistance strength is obtained from the data row set of the same stratum type. Based on the optimal cement slurry viscosity, similar slurry viscosity data sets are obtained from the parameter set of the same stratum type. The similar pavement resistance strength data sets and similar slurry viscosity data sets are integrated to obtain similar data sets. Calculate the Euclidean distance between the current parameter and each similar data row in the similar data row set to obtain the Euclidean distance set. Obtain the neighbor distance set from the Euclidean distance set, where the number of neighbor distances in the neighbor distance set is less than the number of Euclidean distances in the Euclidean distance set. The initial pressure and initial flow rate are calculated based on the nearest distance set and the similar data row set.

3. The cement grouting drilling method as described in claim 2, characterized in that, The calculation of initial pressure and initial flow rate based on the nearest neighbor distance set and similar data row set includes: Based on the nearest distance set, identify the nearest similar data row set from the similar data row set, extract the nearest similar data rows from the nearest similar data row set in turn, and calculate the similarity weight based on the extracted nearest similar data rows and the current parameters; Summarize the similarity weights to obtain a similarity weight set, and calculate the total similarity weight based on the similarity weight set, where the total similarity weight is the sum of the similarity weight sets; Obtain similar pressure value sets and similar flow value sets from the similar data row set. Calculate the initial pressure based on the similarity weight set, the similar pressure value set, and the total similarity weight. Calculate the initial flow based on the similarity weight set, the similar flow value set, and the total similarity weight.

4. The cement grouting drilling rig construction method as described in claim 3, characterized in that, The method of obtaining single-segment grouting parameters based on initial parameters, grouting pump, drilling of the road surface to be grouted, and drill bit includes: The grouting pump is set using initial parameters to obtain the installed grouting pump. The start grouting command is received. The grouting operation is performed according to the start grouting command, the drill bit, and the installed grouting pump to drill the hole in the road surface to be grouted, and the initial actual pressure value of the drill bit is obtained. If the initial actual drill bit pressure value is not within the preset expected drill bit pressure range, then the upper limit and lower limit of expected drill bit pressure are obtained based on the expected drill bit pressure range. If the initial actual drill bit pressure value is less than the expected lower limit of drill bit pressure, the initial flow rate is increased using the pre-built step-increase algorithm to obtain the adjusted flow rate. The adjusted flow rate is used as the initial flow rate, and the process returns to the step of setting the grouting pump using the initial parameters until the initial actual drill bit pressure value is within the expected drill bit pressure range. If the initial drill bit actual pressure value is equal to the expected upper limit of the drill bit pressure, then perform a millimeter-level response operation on the installed grouting pump until the initial drill bit actual pressure value is within the expected drill bit pressure range, obtain the calibrated grouting pump, use the calibrated grouting pump as the installed grouting pump, and return to the steps of performing grouting operation on the borehole of the road surface to be grouted according to the start grouting command, the drill bit and the installed grouting pump, until the pre-constructed borehole fullness command is received; If the initial actual pressure value of the drill bit is within the expected pressure range of the drill bit, the pressure of the drill bit is monitored in real time until the borehole is saturated, and the single-segment grouting parameters are obtained. The single-segment grouting parameters include: grouting flow rate sequence, actual pressure sequence, and grouting time sequence. The grouting flow rate sequence includes multiple grouting flows, the actual pressure sequence includes multiple actual pressures, and the grouting time sequence includes multiple grouting times. The grouting flow rate, actual pressure, and grouting time correspond one-to-one.

5. The cement grouting drilling method as described in claim 4, characterized in that, The step of plotting the grouting pressure process curve and the grouting flow rate process curve based on the single-segment grouting parameter set includes: A grouting process coordinate system is constructed based on grouting duration, grouting flow rate, and actual pressure. The grouting process coordinate system has grouting duration as the horizontal axis and grouting flow rate and actual pressure as the vertical axis. The single-segment grouting parameters are extracted sequentially from the single-segment grouting parameter set. Based on the extracted single-segment grouting parameters, the single-segment grouting pressure process curve and the single-segment grouting flow rate process curve are plotted in the grouting process coordinate system. The single-segment grouting pressure process curve and the single-segment grouting flow process curve are summarized separately to obtain a set of single-segment grouting pressure process curves and a set of single-segment grouting flow process curves. The single-segment grouting pressure process curve set and the single-segment grouting flow process curve set are spliced ​​together according to the order of extraction of single-segment grouting parameters to obtain the grouting pressure process curve and the grouting flow process curve.

6. The cement grouting drilling method as described in claim 5, characterized in that, The data cloud atlas based on pavement repair grouting identified multiple sets of sections with questionable grouting effects, including: For each pavement repair grouting data cloud map in the pavement repair grouting data cloud map set, the following operations shall be performed: The road grouting sections were extracted sequentially from multiple road grouting sections in the road repair grouting data cloud map. Based on the extracted road grouting sections, the section pressure curve and section flow curve were confirmed from the grouting flow process curve and grouting pressure process curve, respectively. The total grouting volume and depth of the section are obtained from the section flow curve. The unit grouting volume is calculated based on the total grouting volume and depth of the section. The unit grouting volume is the value obtained by dividing the total grouting volume of the section by the section depth. Obtain the actual pressure value set of the section based on the section pressure curve, and count the number of actual pressure values ​​of the section in the actual pressure value set; The average grouting pressure is calculated based on the set of actual pressure values ​​of the section and the number of actual pressure values ​​of the section. The pressure-flow coupling coefficient is calculated based on the set of actual pressure values ​​of the section, the preset normal pressure value sequence, and the number of actual pressure values ​​of the section. If the unit grout intake, average grouting pressure, and pressure-flow coupling coefficient do not meet the preset standard parameter range conditions, then the road grouting section will be marked as a key suspicious area to obtain a grout loss type suspicious area. If the unit grout intake, average grouting pressure, and pressure-flow coupling coefficient meet the preset standard parameter range conditions, then the number of pulse erosion events in the road grouting section is obtained. If the number of pulse erosion events is greater than the preset normal pulse number, then the road grouting section is marked with a warning suspicious area to obtain a permeability-difficult suspicious area. Areas with suspected grout loss or poor penetration are designated as sections with suspected grouting effects. These sections are then summarized to obtain a set of sections with suspected grouting effects. Finally, multiple sets of sections with suspected grouting effects are obtained.

7. The cement grouting drilling method as described in claim 6, characterized in that, The calculation of the pressure-flow coupling coefficient based on the actual pressure value set of the section, the preset normal pressure value sequence, and the number of actual pressure values ​​of the section includes: The maximum and minimum normal pressure values ​​are determined based on the normal pressure value sequence. The pressure-flow coupling coefficient is then calculated based on the actual pressure value set for the section, the normal pressure value sequence, the number of actual pressure values ​​for the section, the maximum normal pressure value, and the minimum normal pressure value. The formula for calculating the pressure-flow coupling coefficient is shown below: ， in, Indicates the pressure-flow coupling coefficient. This represents the normal pressure value in the normal pressure value sequence. This represents the actual pressure value of a section where the actual pressure values ​​are concentrated. This indicates the maximum normal pressure value. This indicates the minimum normal pressure value. This indicates the actual pressure value of the section.

8. A cement grouting drilling rig based on the cement grouting drilling rig construction method according to any one of claims 1 to 7, characterized in that, include: A cement grouting drilling rig, comprising: a grout circulation system (200), a grouting pump (201), a drill rod (202), and a drill bit (203).

9. A system using the cement grouting drilling method as described in claim 1, characterized in that, The system includes: The road surface drilling location determination module is used to identify the road surface to be repaired, obtain the road base structure model based on the road surface to be repaired, perform sensor zero-point calibration on the pre-constructed cement grouting drilling rig, obtain the calibrated cement grouting drilling rig, and determine the precise location set of road surface drilling according to the preset design drawings. The depth zone division module performs the following operations on each precise location of a road borehole in the set of precise locations: moves the calibrated cement grouting drill rig to the precise location of the road borehole to obtain the drill rig to be drilled, receives the drilling command, creates a road repair grouting data cloud map based on the drilling command, the precise location of the road borehole, the road base structure model, the drill rig to be drilled, and the road surface to be repaired, summarizes the road repair grouting data cloud map, and obtains the road repair grouting data cloud map set corresponding to the set of precise locations of road boreholes, wherein there is a one-to-one correspondence between the precise location of the road borehole and the road repair grouting data cloud map; The suspicious section identification module is used to identify multiple suspicious grouting effect sections based on the road repair grouting data cloud map atlas. The road repair grouting data cloud map corresponds one-to-one with the suspicious grouting effect section set, and the suspicious grouting effect section set includes one or more suspicious grouting effect sections. The construction completion module is used to complete the cement grouting drilling construction based on multiple sets of sections with questionable grouting effects.

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