Tunnel deformation energy transfer monitoring method and related equipment

Abstract

The invention relates to the technical field of tunnel deformation energy transfer monitoring, in particular to a tunnel deformation energy transfer monitoring method and related equipment. The tunnel deformation energy transfer monitoring method comprises the following steps: acquiring a deformation energy transfer monitoring area of a tunnel according to rock mass information of the tunnel; a plurality of fiber bragg gratings are arranged in a deformation energy transfer monitoring area, and a plurality of fiber bragg grating fibers are used as a deformation energy exploration array; acquiring strain data of the tunnel based on the reflected light signal monitored by the deformation energy exploration array; and determining the safety condition of the tunnel based on the strain data. The strain condition of the tunnel can be remotely monitored in a high-precision, long-term and stable manner through the fiber bragg grating, so that the part of the tunnel, which is transferred to the rock mass, and the deformation quantity of the rock mass can be known. Therefore, countermeasures can be taken in time according to the monitoring result, and safe operation of the tunnel is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel deformation energy transfer monitoring, in particular to a tunnel deformation energy transfer monitoring method and related equipment. Background Art

[0002] During the operation of a tunnel, the deformation and deformation of the tunnel rock mass caused by geological conditions, construction activities or other factors sometimes transfer the energy of these deformation and deformation to the surrounding rock mass or structure. This deformation energy transfer is an important engineering issue, which may cause damage to the tunnel structure or affect the stability of the tunnel environment, thus forming a potential safety hazard. Therefore, it is necessary to invent a tunnel deformation energy transfer monitoring method and related equipment. Summary of the invention

[0003] The embodiments of the present invention are intended to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first objective of an embodiment of the present invention is to provide a method for monitoring tunnel deformation energy transfer.

[0005] A second objective of an embodiment of the present invention is to provide a tunnel deformation energy transfer monitoring system.

[0006] A third objective of an embodiment of the present invention is to provide an electronic device.

[0007] A fourth objective of an embodiment of the present invention is to provide a computer-readable storage medium.

[0008] In order to achieve the above-mentioned object, the technical solution of the first aspect of the present invention provides a computer-readable storage medium, comprising: According to the rock mass information of the tunnel, the deformation energy transfer monitoring area of ​​the tunnel is obtained; Arrange a plurality of fiber gratings in the deformation energy transfer monitoring area, and use the plurality of grating fibers as a deformation energy exploration array; obtain the strain data of the tunnel based on the reflected light signal monitored by the deformation energy exploration array; Based on the above strain data, the safety status of the above tunnel is determined.

[0009] In addition, the tunnel deformation energy transfer monitoring method in the above technical solution provided by the embodiment of the present invention may also have the following additional technical features: In a technical solution of the present invention, the step of obtaining the deformation energy transfer monitoring area of ​​the tunnel according to the rock mass information of the tunnel includes: Obtaining material information and geological information of the rock mass and information on the force exerted by the tunnel on the rock mass; Determine the weak surface area and joint area of ​​the rock mass according to the material information, the geological information and the force information; According to the above-mentioned weak surface area and the above-mentioned joint area, the deformation energy transfer monitoring area of ​​the above-mentioned tunnel is determined.

[0010] In a technical solution of the present invention, the step of arranging a plurality of fiber gratings in the deformation energy transfer monitoring area and using the plurality of grating fibers as a deformation energy exploration array comprises: Determine the installation section of the fiber grating along the length direction of the deformation energy transfer monitoring area; A plurality of mounting holes are drilled in the circumferential direction of each of the mounting sections, and the optical fiber gratings are placed in the mounting holes.

[0011] In a technical solution of the present invention, the angle between each of the above-mentioned mounting holes and the above-mentioned cross-sectional wall where it is located is 80° to 90°.

[0012] In a technical solution of the present invention, the tunnel deformation energy transfer monitoring method further includes: The fiber gratings are calibrated to a preset state.

[0013] In a technical solution of the present invention, the step of obtaining the deformation data of the tunnel based on the reflected light signal monitored by the deformation energy exploration array comprises: Setting up a fiber Bragg grating sensor system, and electrically connecting all the above fiber Bragg gratings to the above fiber Bragg grating sensor system; A reflected light signal generated by the fiber grating according to the rock mass strain is obtained, and strain data of the tunnel is obtained according to the reflected light signal.

[0014] In a technical solution of the present invention, the step of determining the safety status of the tunnel based on the deformation data includes: Based on the strain data, a deformation model of the rock mass is formed to determine the deformation trend of the rock mass; When the deformation trend of the above rock mass is greater than or equal to the preset trend, a safety warning is issued.

[0015] In a technical solution of the present invention, when there are cross-section overlaps in the spliced ​​data, the data of the overlaps are averaged; When there are missing sections in the spliced ​​data, two-dimensional interpolation processing is performed on the resistivity data of adjacent sections.

[0016] The technical solution of the second aspect of the present invention provides a tunnel deformation energy transfer monitoring system, comprising: A first acquisition unit is used to acquire the deformation energy transfer monitoring area of ​​the tunnel according to the rock mass information of the tunnel; A collection unit, used to set a plurality of fiber gratings in the deformation energy transfer monitoring area, and use the plurality of grating fibers as a deformation energy exploration array; The second acquisition unit is used to acquire the deformation data of the tunnel based on the reflected light signal monitored by the deformation energy exploration array; the determination unit is used to determine the safety status of the tunnel based on the deformation data.

[0017] The technical solution of the third aspect of the present invention provides an electronic device, including: a memory storing a computer program; A processor, configured to execute the computer program; Wherein, when the processor executes the computer program, it implements the tunnel deformation energy transfer monitoring method as described in any one of the above technical solutions.

[0018] The technical solution of the fourth aspect of the present invention provides a computer-readable storage medium, including: The computer-readable storage medium stores a computer program for implementing the tunnel deformation energy transfer monitoring method as described in any one of the above technical solutions.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects: This solution obtains the deformation energy transfer monitoring area of ​​the tunnel based on the rock mass information of the tunnel; sets up multiple fiber gratings in the deformation energy transfer monitoring area and uses multiple grating fibers as deformation energy exploration arrays; obtains the deformation data of the tunnel based on the reflected light signal monitored by the deformation energy exploration array; and determines the safety of the tunnel based on the deformation data. The fiber grating can be used to remotely monitor the strain of the tunnel with high precision, long-term stability, so as to know the location of the tunnel deformation transferred to the rock mass and the deformation amount caused to the rock mass. Therefore, timely countermeasures can be taken according to the monitoring results to ensure the safe operation of the tunnel.

[0020] The tunnel deformation energy transfer monitoring method and related equipment described in the present invention, and other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will also be understood by technicians in this field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments according to the following drawings, in which: Figure 1 A schematic diagram of a process of monitoring a tunnel deformation energy transfer method provided in accordance with an embodiment of the present application is shown; Figure 2 A schematic diagram of assembling a fiber Bragg grating according to an embodiment of the present application is shown; Figure 3 A structural block diagram of a tunnel deformation energy transfer monitoring system provided according to an embodiment of the present application is shown; Figure 4 A structural block diagram of an electronic device provided according to an embodiment of the present application is shown; Figure 5 A structural block diagram of a computer-readable storage medium provided according to an embodiment of the present application is shown.

[0022] in, Figure 2 The corresponding relationship between the reference numerals and the component names is: 100 tunnel section, 200 mounting hole, 300 fiber Bragg grating. DETAILED DESCRIPTION

[0023] In order to better understand the above-mentioned technical scheme, the technical scheme of the embodiments of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical scheme of the embodiments of the present application, rather than limitations on the technical scheme of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments may be combined with each other.

[0024] like Figure 1 As shown, according to a first aspect of an embodiment of the present application, a tunnel deformation energy transfer monitoring method is proposed, comprising: S101: Acquire a deformation energy transfer monitoring area of ​​the tunnel according to rock mass information of the tunnel.

[0025] Step S101 includes: step S1011 to step S1013.

[0026] Wherein, step S1011: obtaining material information and geological information of the rock mass and information on the force acting on the rock mass by the tunnel; It is understandable that the material of the rock mass where the tunnel is located and the geological conditions of the rock mass can be obtained, so that the mechanical properties and structural strength of the rock mass where the tunnel is located can be determined. In addition, the force exerted by the tunnel on the rock mass can be detected.

[0027] Step S1012: determining the weak surface area and joint area of ​​the rock mass according to the material information, the geological information and the force information; It is understandable that the stress transfer direction of the rock mass can be known based on the material information, geological information and force information of the rock mass. When the tunnel is in operation, the rock mass is subjected to stress concentration, and the stress will be transferred along the weak surface area and joint area of ​​the rock mass, thereby causing deformation or rupture of the rock mass, which can easily affect the safety of the tunnel.

[0028] Step S1013: Determine the deformation energy transfer monitoring area of ​​the tunnel according to the weak surface area and the joint area.

[0029] It can be understood that, considering that the weak surface areas and joint areas of the rock mass are the first to deform and rupture when subjected to the deformation energy of the tunnel, the deformation energy transfer monitoring area of ​​the tunnel can be determined in the weak surface areas and joint areas of the rock mass.

[0030] Step S102 includes: step S1021 and step S1022.

[0031] Wherein, step S1021: determining the installation section of the fiber Bragg grating along the length direction of the deformation energy transfer monitoring area; It is understandable that the interval length can be selected in the tunnel length direction of the deformation energy transfer monitoring area, and the number of installation sections for installing the fiber grating can be determined according to the interval length. Therefore, the strain data of the tunnel can be perceived in real time through the fiber gratings of multiple sections. The grating can form a periodic refractive index change in the optical fiber, so that the strain of the tunnel can be remotely monitored with high precision, long-term stability, and avoid safety risks during monitoring by staff. For example, a Bragg grating can be selected to monitor the strain of the tunnel.

[0032] Step S1022: Drill multiple mounting holes in the circumferential direction of each of the above-mentioned mounting sections; it can be understood that, if Figure 2 As shown, multiple mounting holes can be mechanically drilled in the circumference of the mounting section to form the mounting position of the fiber Bragg grating, and the fiber Bragg grating is fixedly installed in the mounting hole to ensure that the fiber Bragg grating can operate stably for a long time and improve reliability. And ensure the accuracy of strain monitoring of the tunnel at the corresponding monitoring position.

[0033] Exemplarily, 9 to 12 detection holes are drilled in the circumferential direction of each section, each of which has a depth of 6 meters and a diameter of 50 mm.

[0034] Exemplarily, adjacent mounting holes are arranged at intervals of 0.2 meters to 0.3 meters, thereby ensuring the accuracy of cross-sectional strain data collection.

[0035] In some examples, the angle between each of the mounting holes and the cross-sectional wall where the mounting hole is located is 80° to 90°.

[0036] It is understandable that when using fiber Bragg grating detection, in order to ensure the accuracy of monitoring tunnel strain, it is necessary to ensure that the installation hole and the section wall where it is located are as perpendicular as possible. Here, the angle between each installation hole and the section wall where it is located is set to 80° to 90°.

[0037] In some examples, the tunnel deformation energy transfer monitoring method further includes: calibrating the fiber gratings to calibrate each of the fiber gratings to a preset state.

[0038] It is understandable that after the fiber Bragg grating is installed in the installation position, the fiber Bragg grating needs to be adjusted and calibrated to ensure that the fiber Bragg grating emits light according to the preset refraction angle, so that the fiber Bragg grating is adjusted to the preset state, so as to ensure that the fiber Bragg grating monitors the strain of the tunnel accurately and improves reliability.

[0039] Step S103: acquiring strain data of the tunnel based on the reflected light signal monitored by the deformation energy exploration array; Step S103: comprising: Step S1031 and Step S1032.

[0040] Among them, step S1031: set up a fiber Bragg grating sensor system, and electrically connect all the above-mentioned fiber Bragg gratings to the above-mentioned fiber Bragg grating sensor system; it can be understood that all the fiber Bragg gratings are connected to the fiber Bragg grating sensor system, and the fiber Bragg grating sensor system has a dedicated fiber Bragg grating sensor reading unit to receive the reflected light signal emitted by the fiber Bragg grating.

[0041] Step S1032: Obtain the reflected light signal generated by the fiber Bragg grating according to the rock mass strain, and obtain the deformation data of the tunnel according to the reflected light signal. It can be understood that the fiber Bragg grating sensor system can obtain the strain data of each point of the tunnel section according to the reflected light signal transmitted to the sensor system by the fiber Bragg grating. Thus, the influence of the tunnel on the weak surface area and joint area of ​​the corresponding rock mass can be determined. Thus, the deformation energy transfer of the tunnel can be judged.

[0042] Step S104: Determine the safety status of the tunnel based on the strain data.

[0043] Step S104: includes: step S1041 and step S1042.

[0044] Among them, step S1041: according to the strain data, a deformation model of the rock mass is formed to determine the deformation trend of the rock mass; it can be understood that the deformation model of the rock mass can be constructed according to the tunnel strain data monitored by the fiber grating, the horizontal coordinate of the deformation model is the depth dimension of the tunnel, and the vertical coordinate of the strain model is the deformation value of the rock mass at the corresponding position caused by the strain of the tunnel. According to the deformation model, the change of the deformation value of the rock mass with the change of the depth of the tunnel can be determined. Thus, the deformation change trend of the rock mass can be known.

[0045] Step S1042: When the deformation trend of the rock mass is greater than or equal to the preset trend, a safety warning is issued. It is understandable that the preset deformation trend of the rock mass can be predetermined based on the material data and geological data of the rock mass. When the deformation trend of the rock mass is greater than or equal to the preset trend, it means that the deformation energy transfer of the tunnel is large, which has a greater impact on the rock mass. The deformation of the rock mass is large, which is prone to cause safety accidents. It is necessary to quickly take corresponding measures for the tunnel and the rock mass to improve safety. When the deformation trend of the rock mass is less than the preset trend, it means that the deformation energy transfer of the tunnel is small and the tunnel is in a safe state.

[0046] like Figure 3 As shown, according to the second aspect of the embodiment of the present application, a dynamic water tunnel rock resistivity monitoring system is proposed, comprising: A first acquisition unit 21 is used to acquire the deformation energy transfer monitoring area of ​​the tunnel according to the rock mass information of the tunnel; A collection unit 22, used to set a plurality of fiber gratings in the deformation energy transfer monitoring area, and use the plurality of grating fibers as a deformation energy exploration array; A second acquisition unit 23, configured to acquire deformation data of the tunnel based on the reflected light signal monitored by the deformation energy exploration array; The determination unit 24 is used to determine the safety status of the tunnel based on the deformation data.

[0047] like Figure 4 As shown, according to the third aspect of an embodiment of the present application, an electronic device 500 is proposed, comprising: a memory 501, storing a computer program; a processor 502, executing the above-mentioned computer program; wherein, when the above-mentioned processor executes the above-mentioned computer program, it implements the tunnel deformation energy transfer monitoring method as described in any one of the above-mentioned technical solutions.

[0048] Since the electronic device 500 introduced in this embodiment is a device used to implement a tunnel deformation energy transfer monitoring system in the embodiment of the present application, based on the method introduced in the embodiment of the present application, technical personnel in this field can understand the specific implementation method of the electronic device 500 of this embodiment and its various variations. Therefore, how the electronic device implements the method in the embodiment of the present application is not introduced in detail here. As long as the equipment used by technical personnel in this field to implement the method in the embodiment of the present application is within the scope of protection of this application.

[0049] In the specific implementation process, when the computer program is executed by the processor, it can achieve Figure 1 Any implementation manner in the corresponding embodiments.

[0050] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0051] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0052] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded computer, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0053] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0054] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0055] like Figure 5As shown, according to the fourth aspect of the embodiment of the present application, a computer-readable storage medium 401 is proposed, and the above-mentioned computer-readable storage medium 401 stores a computer program 402 to implement the tunnel deformation energy transfer monitoring method as described in any one of the above-mentioned technical solutions.

[0056] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a server or a data center that includes one or more available media integration. The available medium can be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive (SSD)), etc.

[0057] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0058] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0059] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0060] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0061] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0062] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A tunnel deformation energy transfer monitoring method, characterized in that: include: According to the rock mass information of the tunnel, a deformation energy transfer monitoring area of ​​the tunnel is obtained; Arrange a plurality of fiber gratings in the deformation energy transfer monitoring area, and use the plurality of grating fibers as a deformation energy exploration array; Acquiring strain data of the tunnel based on the reflected light signal monitored by the deformation energy exploration array; Based on the strain data, a safety condition of the tunnel is determined.

2. The tunnel deformation energy transfer monitoring method according to claim 1, characterized in that: The step of obtaining the deformation energy transfer monitoring area of ​​the tunnel according to the rock mass information of the tunnel comprises: Acquiring material information and geological information of the rock mass and information on the force exerted by the tunnel on the rock mass; Determine the weak surface area and joint area of ​​the rock mass according to the material information, the geological information and the force information; A deformation energy transfer monitoring area of ​​the tunnel is determined according to the weak surface area and the joint area.

3. The tunnel deformation energy transfer monitoring method according to claim 2, characterized in that: The step of arranging a plurality of fiber gratings in the deformation energy transfer monitoring area and using the plurality of grating fibers as a deformation energy exploration array comprises: Determining the installation section of the fiber grating along the length direction of the deformation energy transfer monitoring area; A plurality of mounting holes are drilled in the circumferential direction of each mounting section, and the fiber grating is placed in the mounting holes.

4. The tunnel deformation energy transfer monitoring method according to claim 3, characterized in that: The included angle between each mounting hole and the cross-sectional wall where the mounting hole is located is 80° to 90°.

5. The tunnel deformation energy transfer monitoring method according to claim 1, characterized in that: Also includes: The fiber gratings are calibrated to set each fiber grating to a preset state.

6. The tunnel deformation energy transfer monitoring method according to claim 1, characterized in that: The step of acquiring deformation data of the tunnel based on the reflected light signal monitored by the deformation energy exploration array comprises: Setting up a fiber Bragg grating sensor system, and electrically connecting all the fiber Bragg gratings to the fiber Bragg grating sensor system; A reflected light signal generated by the fiber grating according to the rock mass strain is obtained, and strain data of the tunnel is obtained according to the reflected light signal.

7. The tunnel deformation energy transfer monitoring method according to claim 1, characterized in that: The step of determining the safety condition of the tunnel based on the strain data comprises: forming a deformation model of the rock mass according to the strain data to determine the deformation trend of the rock mass; When the deformation trend of the rock mass is greater than or equal to a preset trend, a safety warning is issued.

8. A tunnel deformation energy transfer monitoring system, characterized in that: include: A first acquisition unit, configured to acquire a deformation energy transfer monitoring area of ​​the tunnel according to rock mass information of the tunnel; A collection unit, used to set a plurality of fiber gratings in the deformation energy transfer monitoring area, and use the plurality of grating fibers as a deformation energy exploration array; A second acquisition unit, configured to acquire deformation data of the tunnel based on the reflected light signal monitored by the deformation energy exploration array; A determination unit is used to determine the safety status of the tunnel based on the deformation data.

9. An electronic device, characterized in that: include: a memory storing a computer program; A processor, configured to execute the computer program; Wherein, when the processor executes the computer program, the The tunnel deformation energy transfer monitoring method described in any one of the above.

10. A computer-readable storage medium, characterized in that: The computer readable storage medium stores a computer program to implement the The tunnel deformation energy transfer monitoring method described in any one of the above.

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