A formation state early warning method, device, equipment and storage medium

Abstract

The present invention discloses a stratum state warning method, device, equipment and storage medium. The method comprises: obtaining a first stratum wave velocity data set in the direction of travel of the shield tunneling axis; determining a first wave velocity difference between two adjacent first stratum wave velocity data according to the first stratum wave velocity data set; determining bad stratum warning information according to each first wave velocity difference and a preset wave velocity difference upper limit, and issuing a warning to a bad stratum warning area according to the bad stratum warning information; wherein the preset wave velocity difference upper limit is determined according to the soil layer fluctuation parameter and the soil layer hardness parameter in the shield tunneling area. The technical solution of the embodiment of the present invention solves the problem that it is difficult to intuitively and effectively determine abnormal strata in the tunneling direction during shield construction, reduces the complexity of abnormal stratum identification, realizes automatic identification and warning of bad strata during tunneling, and improves the accuracy of warning.

Description

Technical Field

[0001] The present invention relates to the field of underground engineering technology, and in particular to a stratum state early warning method, device, equipment and storage medium. Background Art

[0002] Shield construction is a commonly used engineering technology and plays an important role in tunnel construction. During the shield tunneling process, if the strata are very different, such as the sudden change of soft and hard rock strata, it will have a great impact on the shield tunneling, which can easily lead to damage to the shield device. In addition, different types of cutterheads are required for different strata, which takes a lot of time.

[0003] Therefore, in order to ensure the safe advancement of the shield, the surrounding geological conditions need to be explored before and during the shield construction. However, the geological exploration method currently used can only directly obtain the wave velocity contour map of the shield advancement area. Before issuing an early warning, it is still necessary for staff with relevant experience to further interpret and process it, making it difficult to issue an early warning for dangerous areas in the shield advancement area. Summary of the invention

[0004] The present invention provides a stratum status early warning method, device, equipment and storage medium. By constructing a correspondence between soil layer fluctuation parameters and soil layer hardness parameters in a shield tunneling area, and then determining the upper limit of the wave velocity difference in the shield tunneling area for judging bad strata according to the correspondence, early warning is given to bad strata in the shield tunneling direction based on the acquired stratum wave velocity, thereby reducing the recognition complexity and improving the accuracy of early warning.

[0005] In a first aspect, an embodiment of the present invention provides a formation state early warning method, the method comprising:

[0006] Acquire a first formation wave velocity data set in the direction of the shield tunneling axis;

[0007] determining a first velocity difference between two adjacent first formation velocity data sets according to the first formation velocity data set;

[0008] Determine bad formation warning information according to each first wave velocity difference and a preset wave velocity difference upper limit, and issue a warning to the bad formation warning area according to the bad formation warning information;

[0009] Among them, the preset upper limit of the wave velocity difference is determined according to the soil layer fluctuation parameters and soil layer hardness parameters in the shield excavation area.

[0010] In a second aspect, an embodiment of the present invention further provides a formation state early warning device, the formation state early warning device comprising:

[0011] A data set acquisition module, used for acquiring a first formation wave velocity data set in the direction of travel of the shield tunneling axis;

[0012] A wave velocity difference determination module, used for determining a first wave velocity difference between two adjacent first formation wave velocity data according to the first formation wave velocity data set;

[0013] An early warning module is used to determine bad formation early warning information according to each first wave velocity difference and a preset wave velocity difference upper limit, and to issue an early warning to a bad formation early warning area according to the bad formation early warning information;

[0014] Among them, the preset upper limit of the wave velocity difference is determined according to the soil layer fluctuation parameters and soil layer hardness parameters in the shield excavation area.

[0015] In a third aspect, an embodiment of the present invention further provides a formation state early warning device, the formation state early warning device comprising:

[0016] at least one processor; and

[0017] a memory communicatively connected to at least one processor; wherein,

[0018] The memory stores a computer program that can be executed by at least one processor. The computer program is executed by at least one processor, so that the at least one processor can implement the formation state early warning method of any embodiment of the present invention.

[0019] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to implement the formation status warning method of any embodiment of the present invention when executed by a processor.

[0020] The embodiment of the present invention provides a stratum state warning method, device, equipment and storage medium, which obtains a first stratum wave velocity data set in the direction of the shield tunneling axis; determines the first wave velocity difference between two adjacent first stratum wave velocity data according to the first stratum wave velocity data set; determines the bad stratum warning information according to each first wave velocity difference and the preset wave velocity difference upper limit, and warns the bad stratum warning area according to the bad stratum warning information; wherein the preset wave velocity difference upper limit is determined according to the soil layer fluctuation parameter and the soil layer hardness parameter in the shield tunneling area. By adopting the above technical scheme, the stratum wave velocity data in the direction of the shield tunneling axis is obtained. Since the stratum wave velocity data is collected at equal intervals, the wave velocity difference between the strata at the corresponding positions of the two adjacent stratum wave velocity data can be determined, and then according to the correspondence between the soil layer fluctuation parameter and the soil layer hardness parameter in the shield tunneling area pre-constructed, the wave velocity difference upper limit in the case of bad strata is clearly determined, so as to determine the position information of the bad strata that may exist in the direction of the shield tunneling axis, and warn it. It solves the problem of difficulty in intuitively and effectively determining abnormal strata in the excavation direction during shield construction, reduces the complexity of abnormal strata identification, realizes automatic identification and early warning of bad strata during excavation, and improves the accuracy of early warning.

[0021] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a flow chart of a formation state early warning method in Embodiment 1 of the present invention;

[0024] Figure 2 This is a flow chart of a formation state early warning method in Embodiment 2 of the present invention;

[0025] Figure 3 This is an example diagram of a result display area interface in the second embodiment of the present invention;

[0026] Figure 4 It is a flow chart of a formation state early warning method in Embodiment 2 of the present invention;

[0027] Figure 5It is a structural schematic diagram of a formation state early warning device in Embodiment 3 of the present invention;

[0028] Figure 6 It is a structural schematic diagram of a formation status early warning device in embodiment 4 of the present invention. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0031] Embodiment 1

[0032] Figure 1 A flow chart of a stratum status warning method provided in Example 1 of the present invention. The embodiment of the present invention can be applied to the situation of determining and warning of unfavorable strata in the direction of shield excavation during shield construction. The method can be executed by a stratum status warning device, which can be implemented by software and / or hardware. The stratum status warning device can be configured on a computer device, which can be a notebook, desktop computer, smart tablet, etc.

[0033] like Figure 1 As shown, a formation state early warning method provided by Embodiment 1 of the present invention specifically includes the following steps:

[0034] S101. Acquire a first formation wave velocity data set in the travel direction of the shield tunneling axis.

[0035] In this embodiment, the shield machine can be specifically understood as pushing the shield machine into the ground, supporting the surrounding rock with the shield shell and segments to prevent collapse into the tunnel, and excavating the soil in front of the excavation face with a cutting device, transporting it out of the cave by an excavation machine, and jacking it up at the rear with a jack, and assembling prefabricated concrete segments to form a mechanized construction method for the tunnel structure. The shield excavation axis can be specifically understood as an extension line that is consistent with the direction in which the shield machine will advance during the shield excavation process. The first stratum wave velocity data can be specifically understood as the wave velocity information of the vibration wave obtained through seismic exploration or other geological exploration methods at a set sampling point.

[0036] Specifically, before the shield machine is required to perform shield construction, or during the shield construction process, a preset number of sampling points are set at equal intervals in the direction of the shield excavation axis, and formation wave velocity sampling is performed at each sampling point, and the formation wave velocity information collected at a sampling point is determined as a first formation wave velocity data set, and the set constructed according to the sampling sequence is determined as a first formation wave velocity data set. Optionally, the first formation wave velocity data can be obtained by micro-motion detection or other exploration methods, and the embodiment of the present invention does not limit this.

[0037] S102: Determine a first velocity difference between two adjacent first formation velocity data sets according to the first formation velocity data set.

[0038] Specifically, since each first formation velocity data in the first formation velocity data set is collected at equal intervals, two adjacent first formation velocity data can be used to reflect the velocity information of the formation at the corresponding position, and the difference between the two adjacent first formation velocity data is determined as the corresponding first velocity difference.

[0039] S103, determining bad formation warning information according to each first wave velocity difference and a preset wave velocity difference upper limit, and issuing a warning to the bad formation warning area according to the bad formation warning information.

[0040] Among them, the preset upper limit of the wave velocity difference is determined according to the soil layer fluctuation parameters and soil layer hardness parameters in the shield excavation area.

[0041] In this embodiment, the preset velocity difference upper limit can be specifically understood as a pre-set velocity difference for determining whether there is a sudden change in geological properties between adjacent strata in the shield tunneling direction. The bad stratum warning information can be specifically understood as information used to warn the shield operator so that the operator can clearly understand the existence of strata that affect the advancement in front of the shield. The bad stratum warning area can be specifically understood as an area where geological properties have suddenly changed. The shield tunneling area can be specifically understood as an area demarcated by the shield construction. The soil layer fluctuation parameters can be specifically understood as elastic wave fluctuation parameters generated by the propagation of waves generated by vibration in the strata. For example, the soil layer fluctuation parameters may include shear wave velocity, compression wave velocity, and soil layer thickness, etc., which are not limited in the embodiments of the present invention. The soil layer hardness parameters can be specifically understood as physical and mechanical parameters related to characterizing stratum hardness. For example, the soil layer hardness parameters may include density, compaction degree, water content, and Poisson's ratio, etc., which are not limited in the embodiments of the present invention.

[0042] Specifically, according to the correspondence between the soil layer fluctuation parameters and the soil layer hardness parameters in the shield excavation area, the correlation between the stratum wave velocity and the stratum hardness in the area is determined, and then according to the maximum value of the acceptable stratum hardness difference under the normal movement of the shield machine, the corresponding speed difference is determined, and the speed difference is determined as the preset wave velocity difference upper limit, and each first wave velocity difference is compared with the preset wave velocity difference upper limit to determine the stratum in which the hardness difference between the corresponding strata at adjacent sampling points affects the normal movement of the shield machine, and then the bad stratum warning information is generated, and the location, depth and extension length of the bad stratum warning area are warned to the staff based on the bad stratum warning information.

[0043] The technical solution of this embodiment is to obtain the first stratum wave velocity data set in the direction of the shield tunneling axis; determine the first wave velocity difference between two adjacent first stratum wave velocity data according to the first stratum wave velocity data set; determine the bad stratum warning information according to each first wave velocity difference and the preset wave velocity difference upper limit, and warn the bad stratum warning area according to the bad stratum warning information; wherein the preset wave velocity difference upper limit is determined according to the soil layer fluctuation parameter and the soil layer hardness parameter in the shield tunneling area. By adopting the above technical solution, the stratum wave velocity data in the direction of the shield tunneling axis is obtained. Since the stratum wave velocity data is collected at equal intervals, the wave velocity difference between the strata at the corresponding positions of the two adjacent stratum wave velocity data can be determined, and then according to the correspondence between the soil layer fluctuation parameter and the soil layer hardness parameter in the shield tunneling area pre-constructed, the wave velocity difference upper limit in the case of bad strata is clearly determined, so as to determine the position information of the possible bad strata in the direction of the shield tunneling axis and warn it. It solves the problem of difficulty in intuitively and effectively determining abnormal strata in the excavation direction during shield construction, reduces the complexity of abnormal strata identification, realizes automatic identification and early warning of bad strata during excavation, and improves the accuracy of early warning.

[0044] Embodiment 2

[0045] Figure 2 A flow chart of a stratum status warning method provided for the second embodiment of the present invention. The technical solution of the embodiment of the present invention is further optimized on the basis of the above-mentioned optional technical solutions. By determining the acquisition position corresponding to the first stratum wave velocity data whose first wave velocity difference is greater than the preset wave velocity difference upper limit, the area where the bad stratum is located is clarified according to the determined acquisition position, and bad stratum warning information for warning the bad stratum warning area is generated. At the same time, not only the bad stratum warning area is determined in the direction of the shield tunneling axis, but also the cross-section is supplemented in the direction perpendicular to the axis, which ensures the complete detection of the shield tunneling area, improves the automatic identification and warning of bad strata during the shield tunneling process, and improves the accuracy of the warning. At the same time, before obtaining the first stratum wave velocity data set, core sampling and micro-motion detection were performed on multiple exploration holes in the shield excavation area to determine the soil layer hardness parameters and soil layer fluctuation parameters corresponding to each exploration hole, and the mapping relationship between the soil layer hardness and the wave velocity in the shield excavation area was determined by statistical induction. The preset upper limit of the wave velocity difference during the shield excavation process was determined according to the characteristics of the shield machinery. By determining the correlation between the wave velocity and the soil layer hardness, the determination of unfavorable strata can be automatically determined without the participation of relevant technical personnel, thereby improving the efficiency of early warning.

[0046] like Figure 2 As shown, a formation state early warning method provided by Embodiment 2 of the present invention specifically includes the following steps:

[0047] S201, performing core sampling on at least one exploration hole in the shield tunneling area to determine soil hardness parameters corresponding to each exploration hole.

[0048] In this embodiment, the exploration hole can be specifically understood as a sampling point set in a geological area for sampling and surveying the geological conditions in the area. Core sampling can be specifically understood as a sampling method of drilling a hole at the exploration hole to extract soil layer samples within a certain depth in the hole. Through core sampling, the longitudinal distribution information of the soil layer at the exploration hole and the hardness information of each soil layer at the exploration hole can be clarified.

[0049] Specifically, at least one exploration hole is pre-set in the shield excavation area according to geological exploration rules. The exploration holes can be evenly distributed or distributed in a focused manner. Core sampling is carried out at each exploration hole, and based on the core samples obtained at each exploration hole, the soil layer distribution information at the corresponding exploration hole and the hardness information such as density, compaction and water content corresponding to each soil layer are determined. The obtained parameter information related to hardness is integrated as the soil layer hardness parameter of the corresponding exploration hole.

[0050] S202, performing micro-motion detection on each exploration hole to determine soil layer fluctuation parameters corresponding to each exploration hole.

[0051] In this embodiment, micro-seismic detection can be specifically understood as a shallow seismic detection method that detects shallow geological information by utilizing the characteristic that surface waves in micro-seismic waves will produce dispersion when propagating in an inhomogeneous medium.

[0052] Specifically, micro-seismic detection is carried out in each exploration hole in turn to obtain the corresponding wave velocity contour map when the exploration hole is used as the earthquake source, and then the fluctuation information such as the shear wave velocity, compression wave velocity and soil layer thickness corresponding to the stratum corresponding to the exploration hole is determined, and the obtained parameter information related to the fluctuation is integrated as the soil layer fluctuation parameter of the corresponding exploration hole.

[0053] In an embodiment of the present invention, exploration holes are set at different positions in the shield excavation area to collect soil layer fluctuation parameters and soil layer hardness parameters respectively, thereby roughly clarifying the possible stratum types in the shield excavation area and the geological information of different strata, thereby improving the grasp of the geological information of the shield excavation area and improving the accuracy of the preset upper limit of the wave velocity difference determined subsequently based on the geological information.

[0054] S203, statistically summarize the hardness parameters and fluctuation parameters of each soil layer to determine the hardness-wave-velocity mapping relationship in the shield tunneling area.

[0055] Specifically, the hardness parameters and fluctuation parameters of each soil layer are statistically summarized to determine the corresponding relationship between the propagation velocity of surface waves and the hardness parameters of the soil layers in different soil layers within the shield excavation area. Then, the corresponding relationships are statistically summarized to form a functional relationship between the hardness of the soil layer and the wave velocity in the soil layer within the shield excavation area, and this functional relationship is used as the hardness-wave-velocity mapping relationship within the shield excavation area.

[0056] In an embodiment of the present invention, by constructing a hardness-wave-velocity mapping relationship, the purpose of directly determining unfavorable strata based on the acquired wave velocity information during shield tunneling is achieved, without the need for personnel with relevant interpretation experience to further interpret the acquired wave velocity information, thereby improving the intuitiveness of the display of unfavorable strata areas in the shield tunneling direction, and further improving the accuracy and simplicity of abnormal strata identification, so as to realize automatic identification and early warning of unfavorable strata during tunneling.

[0057] S204. Determine the upper limit of the hardness difference during shield tunneling according to the hardness parameters of each soil layer.

[0058] Specifically, based on the maximum acceptable value of the ground hardness difference under normal movement of the shield machine, and according to the hardness parameters of each soil layer, the possible hardness values ​​of each soil layer in the shield excavation area are determined, and the hardness difference value closest to the maximum acceptable ground hardness difference value is determined, and this hardness difference value is determined as the upper limit of the hardness difference value.

[0059] S205, determining a preset wave velocity difference upper limit according to a hardness difference upper limit and a hardness wave velocity mapping relationship.

[0060] Specifically, the upper limit of the hardness difference is substituted into the function corresponding to the hardness wave velocity mapping relationship, the wave velocity values ​​corresponding to the two hardnesses in the upper limit of the hardness difference are determined, and then the wave velocity difference corresponding to the upper limit of the hardness difference is determined, and the wave velocity difference is used as the preset wave velocity difference upper limit, so that it is possible to directly determine whether there is a stratum in the direction of travel of the shield excavation axis that will affect the normal progress of the shield machine based on the collected stratum wave velocity value.

[0061] S206. Acquire a first formation wave velocity data set in the travel direction of the shield tunneling axis.

[0062] S207 . Determine a first velocity difference between two adjacent first formation velocity data sets according to the first formation velocity data sets.

[0063] S208: Determine the first wave velocity difference that is greater than the preset wave velocity difference upper limit as the target first wave velocity difference.

[0064] Specifically, when the first wave velocity difference is greater than the preset upper limit of the wave velocity difference, it can be considered that the hardness of the stratum has undergone a sudden change between the two wave velocity collection points corresponding to the first wave velocity difference, which will affect the normal operation of the shield machinery when moving in this direction. At this time, the first wave velocity difference is determined as the target first wave velocity difference.

[0065] S209: Determine a first wave speed collection position and a second wave speed collection position corresponding to the target first wave speed difference.

[0066] Specifically, two adjacent first formation wave velocity data corresponding to the target first wave velocity difference are determined, and since each first formation wave velocity data in the first formation wave velocity data set is collected at equal intervals and stored in the first formation wave velocity data set according to the collection order, at this time, the collection position corresponding to the first formation wave velocity data collected earlier in the two first formation wave velocity data can be determined as the first wave velocity collection position, and the collection position corresponding to the first formation wave velocity data collected later can be determined as the second wave velocity collection position.

[0067] S210: Generate bad formation warning information according to the first wave velocity collection position and the second wave velocity collection position.

[0068] Specifically, based on the collected wave velocity contour maps corresponding to the first wave velocity collection position and the second wave velocity collection position, the depth and length of the area where the hardness of the formation has suddenly changed are determined, and then the bad formation warning information for bad formation warning is generated based on the depth and length.

[0069] S211 , determining an area between a first wave velocity collection position corresponding to the bad formation warning information and a second wave velocity collection position as a bad formation warning area.

[0070] Specifically, the first wave velocity collection position information and the second wave velocity collection position information contained therein are determined according to the bad formation warning information. Since the wave velocity difference between the two wave velocity collection positions exceeds the preset wave velocity difference upper limit during the equally spaced sampling process, it can be considered that the formation hardness mutation is located between the two collection positions. At this time, the area between the two wave velocity collection positions can be directly determined as the bad formation warning area.

[0071] Furthermore, since corresponding wave velocity contour maps can be collected at different wave velocity collection positions, in addition to determining the extension length of the unfavorable stratum in the direction of travel of the shield tunneling axis, the location of the unfavorable stratum in the depth direction can also be determined.

[0072] S212, issuing warnings based on the travel direction distance and depth distance corresponding to the bad stratum warning area.

[0073] For example, after determining the bad stratum warning area, the corresponding extension distance in the direction of travel of the shield tunneling axis and the depth range of the bad stratum in the depth direction can be determined based on the bad stratum warning area, and then displayed as the result to the corresponding staff. Figure 3 This is an example diagram of a result display area interface provided in the second embodiment of the present invention, such as Figure 3 As shown, the danger zone detection distance is the distance range of the bad stratum warning area in the direction of the shield tunneling axis, and the danger zone detection depth is the depth range of the bad stratum warning area in the depth direction.

[0074] Further, Figure 4 This is a flow chart of a stratum state early warning method provided in the second embodiment of the present invention. When performing stratum state early warning, in addition to identifying the stratum state in the direction of the shield tunneling axis, it is also necessary to detect the cross-sectional direction in the direction of the shield tunneling axis to ensure complete detection of the shield tunneling area. Figure 3 As shown, the specific steps include:

[0075] S301. Acquire at least one second formation wave velocity data set in a direction perpendicular to the travel direction of the shield tunneling axis.

[0076] Specifically, before the shield machine is required to carry out shield construction, or during the shield construction, one or more cross-sectional detection positions are selected in the direction of travel of the shield tunneling axis, and formation wave velocity data sampling perpendicular to the direction of travel of the shield tunneling axis is performed at each cross-sectional detection position. For each cross-section, a preset number of sampling points are set at equal intervals, and formation wave velocity sampling is performed at each sampling point. The formation wave velocity information collected at a sampling point is determined as a second formation wave velocity data, and the set constructed according to the sampling order is determined as a second formation wave velocity data set corresponding to the cross-section.

[0077] S302: for one set of the second formation velocity data, determine a second velocity difference between two adjacent second formation velocity data.

[0078] Specifically, since each second formation velocity data in the second formation velocity data set is collected at equal intervals, two adjacent second formation velocity data can be used to reflect the velocity information of the formation at the corresponding position, and the difference between the two adjacent second formation velocity data is determined to be the corresponding second velocity difference.

[0079] S303: determining bad formation warning information according to each of the second wave velocity differences and a preset wave velocity difference upper limit, and issuing a warning to a bad formation warning area according to the bad formation warning information.

[0080] It should be clarified that the method for determining the bad formation warning information in this step is consistent with that in step S103 and steps S208-S212, and will not be described further in the embodiment of the present invention.

[0081] The technical solution of this embodiment is to determine the acquisition position corresponding to the first formation wave velocity data where the first wave velocity difference is greater than the preset wave velocity difference upper limit, so as to clarify the area where the bad formation is located according to the determined acquisition position, and generate bad formation warning information for warning the bad formation warning area. At the same time, not only is the bad stratum warning area determined in the direction of the shield tunneling axis, but a supplementary cross-sectional detection is also carried out in the direction perpendicular to the axis, ensuring complete detection of the shield tunneling area, improving automatic identification and warning of bad strata during shield tunneling, and improving the accuracy of warning. Before obtaining the first stratum wave velocity data set, core sampling and micro-motion detection are performed on multiple exploration holes in the shield tunneling area to determine the soil layer hardness parameters and soil layer fluctuation parameters corresponding to each exploration hole, and the mapping relationship between soil layer hardness and wave velocity in the shield tunneling area is determined by statistical induction. According to the characteristics of the shield machine, the preset wave velocity difference upper limit in the shield tunneling process is determined. By determining the correlation between wave velocity and soil layer hardness, the determination of bad strata can be automatically determined without the participation of relevant technical personnel, thereby improving the efficiency of warning.

[0082] Embodiment 3

[0083] Figure 5 This is a schematic structural diagram of a formation state warning device provided in Embodiment 3 of the present invention. The formation state warning device comprises: a data set acquisition module 41 , a wave velocity difference determination module 42 and a warning module 43 .

[0084] Among them, the data set acquisition module 41 is used to obtain the first formation wave velocity data set in the direction of travel of the shield excavation axis; the wave velocity difference determination module 42 is used to determine the first wave velocity difference between two adjacent first formation wave velocity data according to the first formation wave velocity data set; the early warning module 43 is used to determine the bad formation early warning information according to each first wave velocity difference and the preset wave velocity difference upper limit, and to issue an early warning for the bad formation early warning area based on the bad formation early warning information; wherein the preset wave velocity difference upper limit is determined according to the soil layer fluctuation parameters and the soil layer hardness parameters in the shield excavation area.

[0085] The technical solution of this embodiment obtains the stratum wave velocity data in the direction of the shield tunneling axis. Since the stratum wave velocity data is collected at equal intervals, the wave velocity difference between the strata at the corresponding positions of two adjacent stratum wave velocity data can be determined, and then the upper limit of the wave velocity difference in the case of poor strata can be determined based on the correspondence between the soil layer fluctuation parameters and the soil layer hardness parameters in the shield tunneling area that are pre-constructed, so as to determine the location information of the possible poor strata in the direction of the shield tunneling axis and issue an early warning. This solves the problem of difficulty in intuitively and effectively determining abnormal strata in the tunneling direction during shield construction, reduces the complexity of abnormal strata identification, realizes automatic identification and early warning of poor strata during tunneling, and improves the accuracy of early warning.

[0086] Furthermore, the formation state early warning device further includes:

[0087] The wave velocity upper limit determination module is used to perform core sampling on at least one exploration hole in the shield excavation area to determine the soil layer hardness parameters corresponding to each exploration hole; perform micro-motion detection on each exploration hole to determine the soil layer fluctuation parameters corresponding to each exploration hole; perform statistical induction on the hardness parameters of each soil layer and the fluctuation parameters of each soil layer to determine the hardness wave velocity mapping relationship in the shield excavation area; determine the hardness difference upper limit during the shield excavation process according to the hardness parameters of each soil layer; and determine a preset wave velocity difference upper limit according to the hardness difference upper limit and the hardness wave velocity mapping relationship.

[0088] Furthermore, the early warning module 43 is specifically used for:

[0089] Determine a first wave speed difference greater than a preset wave speed difference upper limit as a target first wave speed difference;

[0090] Determine a first wave speed collection position and a second wave speed collection position corresponding to a target first wave speed difference;

[0091] Generate bad formation warning information according to the first wave velocity collection position and the second wave velocity collection position;

[0092] Determine the area between the first wave velocity collection position corresponding to the bad formation warning information and the second wave velocity collection position as the bad formation warning area;

[0093] Warnings are issued based on the travel direction distance and depth distance corresponding to the bad stratum warning area.

[0094] Optionally, the data set acquisition module 41 is further used to acquire at least one second formation wave velocity data set in a direction perpendicular to the travel direction of the shield tunneling axis;

[0095] Optionally, the velocity difference determination module 42 is further configured to determine, for a second formation velocity data set, a second velocity difference between two adjacent second formation velocity data sets;

[0096] Optionally, the warning module 43 is further used to determine bad formation warning information according to each second wave velocity difference and a preset wave velocity difference upper limit, and to issue a warning to the bad formation warning area according to the bad formation warning information.

[0097] The formation state early warning device provided in the embodiment of the present invention can execute the formation state early warning method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0098] Embodiment 4

[0099] Figure 6 A structural diagram of a formation state early warning device provided for Embodiment 4 of the present invention. The formation state early warning device 50 may be an electronic device, intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0100] like Figure 6As shown, the formation state warning device 50 includes at least one processor 51, and a memory connected to the at least one processor 51 in communication, such as a read-only memory (ROM) 52, a random access memory (RAM) 53, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 51 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 52 or the computer program loaded from the storage unit 58 to the random access memory (RAM) 53. In the RAM 53, various programs and data required for the operation of the formation state warning device 50 can also be stored. The processor 51, the ROM 52 and the RAM 53 are connected to each other through a bus 54. An input / output (I / O) interface 55 is also connected to the bus 54.

[0101] Multiple components in the formation state early warning device 50 are connected to the I / O interface 55, including: an input unit 56, such as a keyboard, a mouse, etc.; an output unit 57, such as various types of displays, speakers, etc.; a storage unit 58, such as a disk, an optical disk, etc.; and a communication unit 59, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 59 allows the formation state early warning device 50 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0102] The processor 51 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 51 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 51 executes the various methods and processes described above, such as a formation state early warning method.

[0103] In some embodiments, the formation state early warning method can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 58. In some embodiments, part or all of the computer program can be loaded and / or installed on the formation state early warning device 50 via the ROM 52 and / or the communication unit 59. When the computer program is loaded into the RAM 53 and executed by the processor 51, one or more steps of the formation state early warning method described above can be performed. Alternatively, in other embodiments, the processor 51 can be configured to execute the formation state early warning method by any other appropriate means (for example, by means of firmware).

[0104] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0105] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0106] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0107] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0108] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0109] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0110] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0111] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A formation state early warning method, characterized in that: include: Acquire a first formation wave velocity data set in the direction of the shield tunneling axis; Determine a first velocity difference between two adjacent first formation velocity data sets according to the first formation velocity data sets; Determining bad formation warning information according to each of the first wave velocity differences and a preset wave velocity difference upper limit, and issuing a warning to a bad formation warning area according to the bad formation warning information; Wherein, the preset upper limit of the wave velocity difference is determined according to the soil layer fluctuation parameter and the soil layer hardness parameter in the shield tunneling area; Before acquiring the first formation velocity data set, the method further includes: Conducting core sampling of at least one exploration hole in the shield tunneling area to determine the soil hardness parameter corresponding to each of the exploration holes; Performing micro-motion detection on each of the exploration holes to determine soil layer fluctuation parameters corresponding to each of the exploration holes; Performing statistical induction on the hardness parameters of each soil layer and the fluctuation parameters of each soil layer to determine the hardness wave velocity mapping relationship in the shield tunneling area; Determine the upper limit of hardness difference during shield tunneling according to the hardness parameters of each soil layer; The preset wave velocity difference upper limit is determined according to the hardness difference upper limit and the hardness wave velocity mapping relationship.

2. The method according to claim 1, characterized in that The determining of bad formation warning information according to each of the first wave velocity differences and a preset wave velocity difference upper limit includes: Determine a first wave speed difference greater than the preset wave speed difference upper limit as a target first wave speed difference; Determine a first wave speed collection position and a second wave speed collection position corresponding to the target first wave speed difference; Bad formation warning information is generated according to the first wave velocity collection position and the second wave velocity collection position.

3. The method according to claim 2, characterized in that The step of providing an early warning for a bad formation early warning area according to the bad formation early warning information includes: Determine the area between the first wave velocity collection position corresponding to the bad formation warning information and the second wave velocity collection position as a bad formation warning area; The warning is respectively issued according to the travel direction distance and the depth distance corresponding to the bad formation warning area.

4. The method according to claim 1, characterized in that: The method further comprises: Acquire at least one second formation wave velocity data set in a direction perpendicular to the travel direction of the shield tunneling axis; For one of the second formation velocity data sets, determining a second velocity difference between two adjacent second formation velocity data sets; Bad formation warning information is determined according to each of the second wave velocity differences and a preset wave velocity difference upper limit, and a warning is issued to the bad formation warning area according to the bad formation warning information.

5. A formation status early warning device, characterized in that: include: A data set acquisition module, used for acquiring a first formation wave velocity data set in the direction of travel of the shield tunneling axis; A wave velocity difference determination module, used for determining a first wave velocity difference between two adjacent first formation wave velocity data sets according to the first formation wave velocity data sets; An early warning module, used for determining bad formation early warning information according to each of the first wave velocity differences and a preset wave velocity difference upper limit, and issuing an early warning to a bad formation early warning area according to the bad formation early warning information; Wherein, the preset upper limit of the wave velocity difference is determined according to the soil layer fluctuation parameter and the soil layer hardness parameter in the shield tunneling area; The formation state early warning device further comprises: The wave velocity upper limit determination module is used to perform core sampling on at least one exploration hole in the shield excavation area to determine the soil layer hardness parameters corresponding to each of the exploration holes; perform micro-motion detection on each of the exploration holes to determine the soil layer fluctuation parameters corresponding to each of the exploration holes; perform statistical induction on the soil layer hardness parameters and the soil layer fluctuation parameters to determine the hardness wave velocity mapping relationship in the shield excavation area; determine the hardness difference upper limit during the shield excavation process according to the soil layer hardness parameters; and determine a preset wave velocity difference upper limit according to the hardness difference upper limit and the hardness wave velocity mapping relationship.

6. The device according to claim 5, characterized in that The data set acquisition module is further used to acquire at least one second formation wave velocity data set in a direction perpendicular to the travel direction of the shield tunneling axis; The velocity difference determination module is further used to determine the second velocity difference between two adjacent second formation velocity data sets for one second formation velocity data set; The early warning module is further used to determine bad formation early warning information according to each of the second wave velocity differences and a preset wave velocity difference upper limit, and to issue an early warning to the bad formation early warning area according to the bad formation early warning information.

7. A formation status early warning device, characterized in that: The formation state early warning device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the formation state early warning method according to any one of claims 1-4.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the formation state early warning method according to any one of claims 1 to 4 when executed.

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