Method, device, equipment and storage medium for real-time acquisition of tunnel construction parameters

Abstract

A method, device, equipment and storage medium for real-time acquisition of tunnel construction parameters, which relates to the technical field of tunnel construction, including obtaining first surrounding rock parameters of a tunnel construction area along the tunnel axis, constructing a first three-dimensional model based on the tunnel and the first surrounding rock parameters and using it for construction simulation to determine the first safe tunneling length; carrying out segmented construction according to the first safe tunneling length, and at the same time obtaining second surrounding rock parameters of the tunnel construction area in real time according to the tunneling progress; using the second surrounding rock parameters to update the first three-dimensional model in real time to obtain a second three-dimensional model; using the second three-dimensional model to identify the surrounding rock grade and its distribution range, and evaluating the influence degree of the surrounding rock on the tunnel. When the influence degree is greater than the first threshold, calculating the anchoring parameters according to the surrounding rock grade and its distribution range, and adjusting the anchoring parameters of the tunnel construction in real time during tunneling according to the above-mentioned anchoring parameters, so as to achieve the effect of reducing unnecessary stoppages and improving construction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and in particular to a method, device, equipment and storage medium for real-time acquisition of tunnel construction parameters. Background Art

[0002] Traditional tunnel construction relies on the results of previous geological surveys to design construction plans, but due to factors such as exploration drilling density, rock mass heterogeneity and groundwater dynamic changes, the surrounding rock parameters (such as rock mass strength, joint and fissure development, ground stress distribution, etc.) during actual excavation often deviate from the predicted values. This uncertainty is particularly prominent when passing through weak surrounding rock (Grade IV and above), which is prone to cause engineering accidents such as landslides and water gushing due to poor self-stabilization ability and violent deformation response.

[0003] However, weak surrounding rock usually has low strength, high permeability and strong rheological properties. These characteristics make it very easy for the surrounding rock stress redistribution after excavation to cause the plastic zone to expand rapidly. During the tunnel construction process, when passing through such areas, it is very easy to cause serious problems such as excessive settlement and support cracking due to excessive deformation of the surrounding rock. Such problems will not only lead to frequent shutdowns to correct the construction plan, but also significantly increase the project cost and construction period.

[0004] However, traditional anchoring design is often based on the results of preliminary geological surveys and lacks real-time monitoring and dynamic adjustment mechanisms. During the construction process, once the soft surrounding rock geological conditions that do not match the predictions are encountered, it is difficult for traditional construction methods to make effective adjustments in a timely manner. Therefore, there is an urgent need for a construction method that can be adjusted in real time according to the tunnel site parameters to cope with the challenges brought about by insufficient anchoring under soft surrounding rock conditions. Summary of the invention

[0005] The embodiments of the present invention provide a method, device, equipment and storage medium for real-time acquisition of tunnel construction parameters, which can adjust the construction anchoring parameters in real time according to the construction progress, and can timely adjust the construction plan to reduce unnecessary shutdowns and improve construction efficiency.

[0006] The real-time acquisition method of tunnel construction parameters includes:

[0007] Acquire first surrounding rock parameters of the tunnel construction area along the tunnel axis, construct a first three-dimensional model according to the tunnel and the first surrounding rock parameters, perform construction simulation using the first three-dimensional model, and determine a first safe excavation length;

[0008] Carry out segmented construction based on the first excavation safety length, and obtain the second surrounding rock parameters of the tunnel construction area in real time according to the excavation progress;

[0009] The first three-dimensional model is updated in real time using the second surrounding rock parameters to obtain a second three-dimensional model;

[0010] Use the second three-dimensional model to identify the surrounding rock grade and its distribution range, and evaluate the influence degree of the surrounding rock on the tunnel. When the influence degree of the surrounding rock on the tunnel is greater than the first threshold, calculate the anchoring parameters according to the surrounding rock grade and its distribution range. When the influence degree of the surrounding rock on the tunnel is lower than the second threshold, update the first tunneling safety length to determine the second tunneling safety length;

[0011] Construct the tunnel during tunneling according to the above anchoring parameters.

[0012] Furthermore, the anchoring parameters include the anchoring parameters of the anchor, the anchoring angle, the anchoring connecting rod member, and the anchoring depth; and the grouting parameters of the grouting target, the grouting volume, and the grouting frequency.

[0013] Furthermore, the anchor includes a surrounding rock type anchor and a self-fixing type anchor. Among them, the surrounding rock type anchor is defined as the determined surrounding rock area around the tunnel, and the self-fixing type anchor is defined as the area around the tunnel analyzed by using the second three-dimensional model.

[0014] Furthermore, the determination process of the anchoring parameters includes:

[0015] Mark the surrounding rock grade and its distribution range analyzed from the second three-dimensional model;

[0016] Use the preset parameters of the anchor, the anchoring angle, the anchoring connecting rod member, and the anchoring depth to conduct the first anchoring simulation, and evaluate the anchoring parameters according to the simulation results;

[0017] Change the parameters of the anchor, the anchoring angle, the anchoring connecting rod member, and the anchoring depth, conduct the second anchoring simulation, and evaluate the anchoring parameters according to the simulation results;

[0018] Repeat the above process until the evaluation result of the anchoring parameters is greater than the third threshold, and output the anchoring parameters.

[0019] Furthermore, the first tunneling safety length and the second tunneling safety length are composed of several sub-safety lengths. Among them, the sub-safety length starts from the starting point of the tunnel and ends at the ending point of the tunnel, and the sub-safety lengths can be equal or unequal.

[0020] Furthermore, the grouting target is the calibration point of grouting, which includes the injection angle and the injection depth. The method for determining the grouting parameters includes:

[0021] Mark the surrounding rock grade and its distribution range analyzed from the second three-dimensional model and identify the areas where the surrounding rock grade is grade III or above;

[0022] Identify the areas where the surrounding rock grade is grade III or above and the influence degree on the tunnel is greater than the first threshold;

[0023] Identify its scope and mark it. At the same time, conduct simulation to determine the injection angle, injection depth, injection volume, and injection frequency of the grouting point, and evaluate the grouting parameters according to the simulation results;

[0024] Use the injection angle, injection depth, injection volume, and injection frequency parameters of the grouting point to conduct a second anchoring simulation, and evaluate the grouting parameters according to the simulation results;

[0025] Repeat the above process until the evaluation result of the grouting parameters is greater than the fourth threshold, and output the grouting parameters.

[0026] Further, use a preset fifth threshold to evaluate the combination of the output anchoring parameters and grouting parameters. When the evaluation result is greater than the fifth threshold, output the anchoring parameters and grouting parameters as the anchoring parameters. When the evaluation result is lower than the fifth threshold, adjust the anchoring parameters and grouting parameters until the anchoring parameters are output when they are greater than the fifth threshold.

[0027] Further, it includes a modeling unit, a surrounding rock characteristic analysis unit, an excavation length calculation unit, and an anchoring parameter calculation unit;

[0028] The modeling unit is suitable for constructing a first three-dimensional model according to the tunnel and the first surrounding rock parameters; and, use the second surrounding rock parameters to update the first three-dimensional model in real time to obtain a second three-dimensional model in real time;

[0029] The surrounding rock characteristic analysis unit is suitable for analyzing the surrounding rock parameters of the first three-dimensional model and / or the second three-dimensional model according to the first surrounding rock parameters and / or the second surrounding rock parameters;

[0030] The excavation length calculation unit is suitable for calculating the first tunneling safety length and the second tunneling safety length;

[0031] The anchoring parameter calculation unit is suitable for evaluating the influence degree of the surrounding rock on the tunnel. When the influence degree is greater than the first threshold, calculate the anchoring parameters according to the surrounding rock grade and its distribution range.

[0032] The tunnel construction parameter real-time acquisition device includes at least one control processor and a memory for communicating with the at least one control processor; the memory stores instructions executable by the at least one control processor, and the instructions are executed by the at least one control processor so that the at least one control processor can execute the above method.

[0033] A computer-readable storage medium stores computer-executable instructions for causing a computer to execute the above method.

[0034] The beneficial effects of the above technical solutions provided by the embodiments of the present invention at least include:

[0035] 1. The determined first tunneling safety length and the second tunneling safety length can improve the construction safety during the construction of the tunnel. At the same time, the second tunneling safety length is corrected in real time according to the actual construction, which can not only maintain the construction safety but also improve the construction efficiency.

[0036] 2. The anchoring parameters for the soft surrounding rock can be automatically calculated according to the characteristics of the surrounding rock through which the tunnel passes. Compared with the existing construction process, the number of times of modifying the scheme can be reduced, the construction efficiency can be improved, and at the same time, a better anchoring effect for the soft surrounding rock can be obtained, and the construction efficiency is also improved while the safety of the tunnel is enhanced.

[0037] Other features and advantages of the present invention will be described in the following specification, and part of them will be obvious from the specification, or understood by implementing the present invention. The objectives and other advantages of the present invention can be realized and obtained by the structures specifically pointed out in the written specification, claims, and drawings.

[0038] The technical solutions of the present invention will be further described in detail below through the drawings and embodiments. Description of the Drawings

[0039] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0040] Figure 1 It is a schematic flow chart of the method for real-time acquisition of tunnel construction parameters disclosed in the embodiment of the present invention;

[0041] Figure 2 It is a schematic structural diagram of the device for real-time acquisition of tunnel construction parameters disclosed in the embodiment of the present invention.

[0042] Reference Signs:

[0043] 1. Modeling unit; 2. Surrounding rock characteristic analysis unit; 3. Excavation length calculation unit; 4. Anchoring parameter calculation unit. Detailed Embodiments

[0044] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully communicated to those skilled in the art.

[0045] In tunnel engineering, the classification of surrounding rock is an important basis for evaluating its stability, designing the support structure, and formulating the construction plan. According to the current "Standard for Classification of Engineering Rock Masses" (GB / T 50218-2014) in China, the surrounding rock is divided into grades I to V. Among them, grades I to III surrounding rock belong to the surrounding rock with better stability, and grades IV to V surrounding rock belong to the surrounding rock with poorer stability, which is generally also called soft surrounding rock.

[0046] Among them, when the tunnel passes through soft surrounding rock during construction, support measures need to be set up to restrain the deformation of the surrounding rock and avoid affecting the tunnel.

[0047] However, the traditional tunnel construction depends on the construction plan designed based on the results of preliminary geological exploration. This leads to deviations between the parameters of the tunnel passing through the surrounding rock and the parameters of the corresponding surrounding rock in the construction plan during the actual construction process. In order to maintain the safety of the tunnel, it is necessary to modify the construction plan with parameter deviations during the construction process. This will not only cause construction interruption but also significantly increase the project cost and construction period. Moreover, during the process of modifying the construction plan, it is also easy to have the problem that the support measures do not fit well with the surrounding rock parameters, resulting in the effect of the support measures not meeting the expectations.

[0048] In contrast, as Figure 1 shown, the present invention proposes a method for real-time obtaining of tunnel construction parameters, including the following steps:

[0049] S1. Obtain the first surrounding rock parameters of the tunnel construction area along the tunnel axis, construct the first three-dimensional model based on the tunnel and the first surrounding rock parameters, and use it for construction simulation to determine the first excavation safety length.

[0050] Among them, the first surrounding rock parameters are defined as the results of the preliminary geological exploration, and their functions are:

[0051] 1. Construct the initial three-dimensional model (the first three-dimensional model) of the tunnel and the surrounding rock;

[0052] 2. Calculate the initial excavation safety length (the first excavation safety length);

[0053] Use geotechnical engineering software to construct the tunnel and surrounding rock coupling model (the first three-dimensional model). Define the tunnel cross-section shape, buried depth, and trend according to the design parameters of the tunnel, define the input elastic modulus, Poisson's ratio, cohesion, internal friction angle, and permeability coefficient of the surrounding rock according to the first surrounding rock parameters, and define the support structure according to the design parameters of the tunnel.

[0054] The first tunneling safety length consists of several sub-safety lengths. The sub-safety lengths start from the tunnel starting point and end at the tunnel ending point. The sub-safety lengths can be equal or unequal. The total length of the tunnel is decomposed into multiple construction sections, and the surrounding rock units are gradually removed according to the actual construction sequence. After each excavation, the installation of shotcrete, rock bolts, and steel arch frames is simulated, and the support effective time is set. The deformation of the surrounding rock, the distribution of the plastic zone, and the stress of the support structure are monitored. Among them, the monitoring standards are: crown settlement ≤ 30 mm, convergence deformation ≤ 20, the radius of the plastic zone does not exceed 1.5 times the tunnel diameter, the tensile safety factor of the rock bolt ≥ 1.5, and the compressive safety factor of the shotcrete ≥ 2.0. The individual sub-safety lengths of the first tunneling safety length are determined through the above monitoring standards.

[0055] S2, perform segmented construction according to the first tunneling safety length, and at the same time obtain the second surrounding rock parameters of the tunnel construction area in real time according to the tunneling progress.

[0056] During the segmented construction according to the individual sub-safety lengths of the first tunneling safety length, the second surrounding rock parameters of the tunnel are collected in real time. Compared with the first surrounding rock parameters, the second surrounding rock parameters can more accurately reflect the state of the tunnel surrounding rock.

[0057] S3, use the second surrounding rock parameters to update the first three-dimensional model in real time to obtain the second three-dimensional model.

[0058] S4, use the second three-dimensional model to identify the surrounding rock grade and its distribution range, and evaluate the influence degree of the surrounding rock on the tunnel. Among them, evaluating the influence degree of the surrounding rock on the tunnel includes:

[0059] Import the identified surrounding rock parameters into the second three-dimensional model;

[0060] Disturb the surrounding rock parameters, such as the input elastic modulus, Poisson's ratio, cohesion, internal friction angle, or permeability coefficient, and the disturbance amplitude is controlled within ±20%;

[0061] Monitor the crown settlement, radius of the plastic zone, and stress of the support structure of the tunnel, and use the set first threshold to evaluate the influence degree of the surrounding rock on the tunnel.

[0062] When the influence degree of the surrounding rock on the tunnel is less than the first threshold, it is determined that the influence degree of the current surrounding rock on the tunnel is small. When the influence degree of the surrounding rock on the tunnel is greater than the first threshold, it is determined that the influence degree of the current surrounding rock on the tunnel is large.

[0063] Generally speaking, the influence degree of surrounding rock of grades Ⅰ - Ⅲ on the tunnel is small, and that of grades Ⅳ - Ⅴ on the tunnel is large. The above judgment process is used to identify unstable surrounding rock.

[0064] When the influence degree of the surrounding rock on the tunnel is greater than the first threshold, calculate the anchoring parameters according to the surrounding rock grade and its distribution range.

[0065] It should be noted that the anchoring parameters are not the same as the support parameters. The support parameters are the parameters of the support structure, such as the parameters of shotcrete, bolts and steel arches. The anchoring parameters proposed in the present invention are only used to strengthen the tunnel in weak surrounding rock of grades IV to V.

[0066] Specifically, the anchoring parameters include the anchoring parameters of the anchor, the anchoring angle, the anchoring connecting member, and the anchoring depth; and the grouting parameters of the grouting target, the grouting volume, and the grouting frequency.

[0067] Among them,

[0068] The anchoring parameters are mainly applied to the members, and the function of these members is to provide support force or tensile force for the weak surrounding rock of grades IV to V around the tunnel, to enhance the stability of the weak surrounding rock of grades IV to V, to reduce the influence of the weak surrounding rock of grades IV to V on the tunnel, and to improve the stability of the tunnel structure.

[0069] The grouting parameters are mainly applied to the weak surrounding rock of grades IV to V, and the function is to block the cracks in the weak surrounding rock of grades IV to V, enhance the strength of the weak surrounding rock of grades IV to V, and make it form a whole, thereby enhancing its stability.

[0070] The anchor includes a surrounding rock type anchor and a self - fixing type anchor. Among them, the surrounding rock type anchor is defined as the determined surrounding rock area around the tunnel, and the self - fixing type anchor is defined as the area around the tunnel obtained by analyzing the second three - dimensional model.

[0071] The above - mentioned determined surrounding rock type anchor is the surrounding rock of grades I to III. After the member extends into the surrounding rock area of grades I to III and is anchored together with it, the surrounding rock of grades I to III is used to fix the weak surrounding rock of grades IV to V, enhancing its stability.

[0072] The above - mentioned self - fixing type anchor is an anchor body set according to the state of the tunnel and the surrounding rock. There are multiple of them, and they are distributed around the tunnel and connected to the weak surrounding rock of grades IV to V by members to achieve the fixation of the weak surrounding rock of grades IV to V and enhance its stability.

[0073] Specifically, the self - fixing type anchor is at a position obtained by calculation. According to the anchoring angle, the anchoring connecting member, and the anchoring depth, a concrete structure combined with the soil is formed at this position by injecting concrete. The concrete structure is used to replace the function of part of the surrounding rock of grades I to III to achieve the fixation of the weak surrounding rock of grades IV to V.

[0074] The determination process of the anchoring parameters includes:

[0075] Mark the surrounding rock grades and their distribution ranges obtained from the analysis of the second three - dimensional model;

[0076] Use the preset parameters of the anchor, the anchoring angle, the anchoring connecting member, and the anchoring depth to conduct the first anchoring simulation, and evaluate the anchoring parameters according to the simulation results;

[0077] Change the anchor, anchor angle, anchor connecting rod member, and anchor depth parameter, conduct a second anchoring simulation, and evaluate the anchor parameters according to the simulation results;

[0078] Repeat the above process until the evaluation result of the anchor parameters is greater than the third threshold, and output the anchor parameters.

[0079] The grouting target is the calibration point of grouting, which includes the injection angle and injection depth. The method for determining the grouting parameters includes:

[0080] Mark the surrounding rock grade and its distribution range obtained from the analysis of the second three-dimensional model, and identify the areas where the surrounding rock grade is grade III or above;

[0081] Identify the areas where the surrounding rock grade is grade III or above and has an influence degree on the tunnel greater than the first threshold;

[0082] Identify its range and mark it. At the same time, conduct a simulation to determine the injection angle, injection depth, grouting volume, and grouting frequency of the grouting point, and evaluate the grouting parameters according to the simulation results;

[0083] Use the injection angle, injection depth, grouting volume, and grouting frequency parameters of the grouting point to conduct a second anchoring simulation, and evaluate the grouting parameters according to the simulation results;

[0084] The above-mentioned injection angle, injection depth, grouting volume, and grouting frequency parameters of the grouting point are used to fix the weak surrounding rock of grade IV - V. Among them, the injection angle, injection depth, and grouting volume can reduce the usage of unnecessary concrete slurry. Especially the injection angle and injection depth can effectively improve the effectiveness of grouting, enable the injected concrete slurry to combine with the fixed area required by the weak surrounding rock of grade IV - V, and the grouting frequency can control the amount of single injection, facilitate the movement of the concrete slurry along the cracks of the weak surrounding rock of grade IV - V, avoid damaging the cracks of the weak surrounding rock of grade IV - V, and improve the stability of the weak surrounding rock of grade IV - V.

[0085] Repeat the above process until the evaluation result of the grouting parameters is greater than the fourth threshold, and output the grouting parameters.

[0086] Finally, use a preset fifth threshold to evaluate the combination of the output anchor parameters and grouting parameters. When the evaluation result is greater than the fifth threshold, output the anchor parameters and grouting parameters as the anchoring parameters. When the evaluation result is lower than the fifth threshold, adjust the anchor parameters and grouting parameters until the anchoring parameters are output when they are greater than the fifth threshold.

[0087] Among them, the second to fifth thresholds are all evaluated by monitoring the settlement of the tunnel roof, the radius of the plastic zone, and the stress of the support structure. The first to fifth thresholds are specifically set according to the actual construction situation.

[0088] In addition, when the influence degree of the surrounding rock on the tunnel is lower than the second threshold, the first tunneling safety length is updated to determine the second tunneling safety length.

[0089] Among them, the second tunneling safety length is updated in real time based on the first tunneling safety length. Through the second tunneling safety length, the length of the sub-safety length can be adjusted in real time according to the real-time surrounding rock parameters. When the influence degree of the surrounding rock parameters on the tunnel is lower than the second threshold, the length of the sub-safety length can be increased adaptively, achieving the effect of improving construction efficiency.

[0090] S5. Construct the tunnel according to the above anchoring parameters during the tunneling process.

[0091] As Figure 2 shown, the device for real-time acquisition of tunnel construction parameters includes a modeling unit 1, a surrounding rock characteristic analysis unit 2, an excavation length calculation unit 3, and an anchoring parameter calculation unit 4.

[0092] The modeling unit 1 is adapted to construct a first three-dimensional model according to the tunnel and the first surrounding rock parameters; and, use the second surrounding rock parameters to update the first three-dimensional model in real time to obtain a second three-dimensional model in real time.

[0093] The surrounding rock characteristic analysis unit 2 is adapted to analyze the surrounding rock parameters of the first three-dimensional model and / or the second three-dimensional model according to the first surrounding rock parameters and / or the second surrounding rock parameters.

[0094] The excavation length calculation unit 3 is adapted to calculate the first tunneling safety length and the second tunneling safety length.

[0095] The anchoring parameter calculation unit 4 is adapted to evaluate the influence degree of the surrounding rock on the tunnel. When the influence degree is greater than the first threshold, calculate the anchoring parameters according to the surrounding rock grade and its distribution range.

[0096] The device for real-time acquisition of tunnel construction parameters includes at least one control processor and a memory for communicating with the at least one control processor; the memory stores instructions executable by the at least one control processor, and the instructions are executed by the at least one control processor so that the at least one control processor can execute the above method.

[0097] A computer-readable storage medium stores computer-executable instructions for causing a computer to execute the above method.

[0098] The above grouting is used to solidify the soft surrounding rock of grades IV to V. At the same time, the soft surrounding rock of grades IV to V is connected to the surrounding rock of grades I to III or self - fixing anchors through rods, so as to effectively support the soft surrounding rock and improve the stability of the soft surrounding rock of grades IV to V around the tunnel. Compared with the existing construction, the construction plan can be generated according to the captured surrounding rock parameters. This not only avoids frequent construction stops to modify the construction plan, saves the construction period and improves the construction efficiency, but also can obtain a better anchoring effect for the soft surrounding rock, improving the safety of the tunnel while also improving the construction efficiency.

[0099] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process can be rearranged without departing from the scope of the present disclosure. The appended method claims present the elements of the various steps in an exemplary order and are not intended to be limited to the specific order or hierarchy recited.

[0100] In the above - mentioned detailed description, various features are combined in a single embodiment to simplify the present disclosure. This method of disclosure should not be interpreted as reflecting an intention that the embodiments of the claimed subject matter require more features than are expressly stated in each claim. On the contrary, as reflected in the appended claims, the present invention lies in a state with fewer features than all the features of the disclosed single embodiment. Therefore, the appended claims are hereby expressly incorporated into the detailed description, where each claim stands alone as a separate preferred embodiment of the present invention.

[0101] Those skilled in the art should also understand that the various illustrative logical blocks, modules, circuits, and algorithmic steps described in conjunction with the embodiments herein can be implemented as electronic hardware, computer software, or a combination thereof. To clearly illustrate the interchangeability of hardware and software, the above - described various illustrative components, blocks, modules, circuits, and steps have been generally described in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and the design constraints imposed on the overall system. Skilled artisans may implement the described functionality in a flexible manner for each particular application, but such implementation decisions should not be construed as departing from the scope of the present disclosure.

[0102] The steps of the methods or algorithms described in the embodiments of this specification may be directly embodied as hardware, software modules executed by a processor, or a combination thereof. The software modules may be located in a RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD, a ROM, or any other form of storage medium well-known in the art. An exemplary storage medium is connected to the processor so that the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be a component of the processor. The processor and the storage medium may be located in an ASIC. The ASIC may be located in a user terminal. Of course, the processor and the storage medium may also exist as discrete components in the user terminal.

[0103] For a software implementation, the techniques described in this application can be implemented using modules (e.g., procedures, functions, etc.) that perform the functions described in this application. These software codes can be stored in a memory unit and executed by a processor. The memory unit may be implemented within the processor or outside the processor. In the latter case, it is communicatively coupled to the processor via various means, which are well known in the art.

[0104] The foregoing description includes examples of one or more embodiments. Of course, it is not possible to describe all possible combinations of components or methods for the purpose of describing the above embodiments, but those of ordinary skill in the art should recognize that the various embodiments can be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of the appended claims. In addition, with respect to the term "comprising" used in the specification or claims, this term is encompassed in a manner similar to the term "including" as interpreted when "including" is used as a transitional word in a claim. In addition, any use of the term "or" in the claims or specification is intended to mean "non-exclusive or".

Claims

1. A method for real-time obtaining of tunnel construction parameters, characterized in that, Including: Obtain the first surrounding rock parameters of the tunnel construction area along the tunnel axis, construct the first three-dimensional model according to the tunnel and the first surrounding rock parameters, and use the first three-dimensional model to conduct construction simulation to determine the first safe tunneling length; Carry out segmented construction with the first safe tunneling length, and at the same time obtain the second surrounding rock parameters of the tunnel construction area in real time according to the tunneling progress; Use the second surrounding rock parameters to update the first three-dimensional model in real time to obtain the second three-dimensional model; Use the second three-dimensional model to identify the surrounding rock grades and their distribution ranges, and evaluate the influence degree of the surrounding rock on the tunnel. When the influence degree of the surrounding rock on the tunnel is greater than the first threshold, calculate the anchoring parameters according to the surrounding rock grades and their distribution ranges. When the influence degree of the surrounding rock on the tunnel is lower than the second threshold, update the first safe tunneling length to determine the second safe tunneling length; The anchoring parameters include the anchoring parameters of the anchor, the anchoring angle, the anchoring connecting rod member, and the anchoring depth; And the grouting parameters of the grouting target, the grouting volume, and the grouting frequency; The determination process of the anchoring parameters includes: Mark the surrounding rock grades and their distribution ranges obtained by analyzing the second three-dimensional model; Conduct the first anchoring simulation using the preset parameters of the anchor, the anchoring angle, the anchoring connecting rod member, and the anchoring depth, and evaluate the anchoring parameters according to the simulation results; Change the parameters of the anchor, the anchoring angle, the anchoring connecting rod member, and the anchoring depth, conduct the second anchoring simulation, and evaluate the anchoring parameters according to the simulation results; Repeat the above process until the evaluation result of the anchoring parameters is greater than the third threshold, and output the anchoring parameters; The grouting target is the calibration point of grouting, which includes the injection angle and the injection depth. The method for determining the grouting parameters includes: Mark the surrounding rock grades and their distribution ranges obtained by analyzing the second three-dimensional model and identify the areas where the surrounding rock grade is grade III or above; Identify the areas where the surrounding rock grade is grade III or above and the influence degree on the tunnel is greater than the first threshold; Identify its range and mark it, and at the same time conduct simulation to determine the injection angle, the injection depth, the grouting volume, and the grouting frequency of the grouting point, and evaluate the grouting parameters according to the simulation results; Use the parameters of the injection angle, the injection depth, the grouting volume, and the grouting frequency of the grouting point to conduct the second anchoring simulation, and evaluate the grouting parameters according to the simulation results; Repeat the above process until the evaluation result of the grouting parameters is greater than the fourth threshold, and output the grouting parameters; Use the preset fifth threshold to evaluate the combination of the output anchoring parameters and grouting parameters. When the evaluation result is greater than the fifth threshold, output the anchoring parameters and grouting parameters as the anchoring parameters. When the evaluation result is lower than the fifth threshold, adjust the anchoring parameters and grouting parameters until the anchoring parameters are output when they are greater than the fifth threshold; Construct the tunnel during the tunneling process according to the above anchoring parameters.

2. The method according to claim 1, characterized in that The anchor includes a surrounding rock type anchor and a self-fixing type anchor. Among them, the surrounding rock type anchor is defined as the determined surrounding rock area around the tunnel, and the self-fixing type anchor is defined as the area around the tunnel obtained by analyzing the second three-dimensional model.

3. The method according to claim 1, characterized in that The first tunneling safety length and the second tunneling safety length are composed of a number of sub-safety lengths, where the sub-safety length starts from the starting point of the tunnel and ends at the ending point of the tunnel.

4. A real-time acquisition device for tunnel construction parameters, which executes the method according to any one of claims 1 to 3, characterized in that It includes a modeling unit, a surrounding rock characteristic analysis unit, an excavation length calculation unit, and an anchoring parameter calculation unit; The modeling unit is adapted to construct a first three-dimensional model according to the tunnel and the first surrounding rock parameters; and, use the second surrounding rock parameters to update the first three-dimensional model in real time to obtain a second three-dimensional model in real time; The surrounding rock characteristic analysis unit is adapted to analyze the surrounding rock parameters of the first three-dimensional model and / or the second three-dimensional model according to the first surrounding rock parameters and / or the second surrounding rock parameters; The excavation length calculation unit is adapted to calculate the first tunneling safety length and the second tunneling safety length; The anchoring parameter calculation unit is adapted to evaluate the influence degree of the surrounding rock on the tunnel, and when its influence degree is greater than the first threshold, calculate the anchoring parameters according to the surrounding rock grade and its distribution range.

5. Real-time acquisition equipment for tunnel construction parameters, characterized in that, It includes at least one control processor and a memory for communicatingly connecting with the at least one control processor; the memory stores instructions executable by the at least one control processor, and the instructions are executed by the at least one control processor so that the at least one control processor can execute the method according to any one of claims 1 to 3.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions for causing a computer to execute the method according to any one of claims 1 to 3.

Images