A method for correcting induced stress based on tunnel disassembly and related equipment

Abstract

The application discloses a tunnel deconstruction induced stress correction method and related equipment, and relates to the field of tunnel excavation, and mainly aims to solve the problem that the influence of induced stress of cracks in tunnels on tunnel excavation safety is still not considered when tunnels are excavated at present. The method comprises the following steps: obtaining the layer properties of the stress concentration area of the surrounding rock of a target tunnel, wherein the layer properties comprise tensile strength and shear strength; in the case that cracks exist in the stress concentration area of the surrounding rock, determining the induced stress of the stress concentration area of the surrounding rock based on target cracks, wherein the target cracks are cracks with crack opening greater than a preset opening; and determining the interference excavation degree of the stress concentration area of the surrounding rock based on the layer properties and the induced stress. The application is used for the correction process based on tunnel deconstruction induced stress.

Description

Technical Field

[0001] This invention relates to the field of tunnel excavation, and in particular to a method and related equipment for correcting tunnel structural induced stress. Background Technology

[0002] Fully developing and utilizing urban underground space to build compact cities, save transportation energy, and promote emission reduction are important research directions for current development. Urban underground space development will rapidly develop towards deeper strata, larger scale, higher construction efficiency, more humanized technology and methods, low carbon emissions, and environmental friendliness. As an important part of the urban rail transit system, the advancement of construction technology for large-span underground stations in rock strata is a key area for the advancement of the underground space development industry.

[0003] However, in cities in my country where rail transit is widely constructed in rock strata, thanks to the varying degrees of self-supporting capacity of excavated rock, most underground stations in rock strata adopt single-arch, large-span structures that offer spaciousness and superior architectural service functions. However, current tunnel excavation practices still lack consideration for the impact of induced stress from cracks within the tunnel on tunnel excavation safety. Summary of the Invention

[0004] In view of the above problems, the present invention provides a correction method and related equipment based on tunnel deconstruction induced stress. The main purpose is to solve the problem that the impact of induced stress from cracks in the tunnel on the safety of tunnel excavation is still not considered in current tunnel excavation.

[0005] To address at least one of the aforementioned technical problems, in a first aspect, the present invention provides a correction method based on tunnel deconstruction-induced stress, the method comprising:

[0006] Obtain the layer properties of the stress concentration zone of the surrounding rock of the target tunnel, including tensile strength and shear strength.

[0007] In the case of cracks in the stress concentration zone of the surrounding rock, the induced stress in the stress concentration zone of the surrounding rock is determined based on the target crack. The target crack is a crack with a crack aperture greater than a preset aperture. The preset aperture is determined based on the average aperture of cracks that affect the induced stress in the stress concentration zone of the surrounding rock.

[0008] The degree of interference excavation in the stress concentration zone of the surrounding rock is determined based on the above-mentioned layer properties and induced stress.

[0009] Optionally, if cracks exist in the aforementioned stress concentration zone of the surrounding rock, the induced stress in the stress concentration zone of the surrounding rock is determined based on the target crack, including:

[0010] When cracks exist in the stress concentration zone of the surrounding rock, the induced stress of the target crack is determined based on a two-dimensional mathematical model of crack-induced stress.

[0011] The induced stress in the stress concentration zone of the surrounding rock is determined based on the net pressure of the target fracture, the fracture width, the induced stress, and the Poisson's ratio of the surrounding rock.

[0012] Optionally, the above methods also include:

[0013] The first excavation correction direction for the target tunnel is determined based on the degree of interference excavation in the stress concentration zone of the surrounding rock.

[0014] Optionally, the first excavation correction direction for the target tunnel is determined based on the degree of interference excavation in the aforementioned stress concentration zone of the surrounding rock, including:

[0015] When the degree of interference excavation in the stress concentration zone of the surrounding rock is greater than the preset degree of interference excavation, the first excavation correction direction of the target tunnel is determined based on the planned destination of the target tunnel, the stress distribution of the surrounding rock, and the comprehensive evaluation data of cracks.

[0016] Optionally, the above methods also include:

[0017] Obtain urban operation work order data within the reference area, wherein the reference area is centered on the stress concentration zone of the surrounding rock and has a preset distance as its radius;

[0018] Based on the above urban transport work order data, the target construction project data is determined;

[0019] Based on the aforementioned target construction project data, the planned destination of the aforementioned target tunnel, the stress distribution of the surrounding rock, and the comprehensive evaluation data of cracks, the second excavation correction direction for the aforementioned target tunnel was determined.

[0020] Optionally, the above target construction project data includes the construction location, construction content, and construction start time.

[0021] Based on the aforementioned target construction project data, the planned destination of the aforementioned target tunnel, the surrounding rock stress distribution, and the comprehensive evaluation data of cracks, the second excavation correction direction for the aforementioned target tunnel is determined, including:

[0022] Based on the aforementioned construction location, the construction content, and the construction start time, the first excavation correction direction was adjusted to determine the second excavation correction direction for the aforementioned target tunnel.

[0023] Optionally, the aforementioned target construction project data also includes the construction route.

[0024] Based on the aforementioned construction location, construction content, and construction start time, the first excavation correction direction is adjusted to determine the second excavation correction direction for the aforementioned target tunnel, including:

[0025] In the event that the above-mentioned construction direction indicates a conflict between the target construction project and the second excavation correction direction of the target tunnel, the construction completion time of the target project is estimated based on the above-mentioned construction content and the above-mentioned construction start time.

[0026] Based on the aforementioned construction completion time, the second excavation correction direction of the target tunnel is adjusted to obtain the third excavation correction direction.

[0027] Secondly, embodiments of the present invention also provide a correction device based on tunnel deconstruction-induced stress, comprising:

[0028] The acquisition unit is used to acquire the layer properties of the stress concentration zone of the surrounding rock of the target tunnel, including tensile strength and shear strength.

[0029] The first determining unit is used to determine the induced stress in the stress concentration zone of the surrounding rock based on a target crack when cracks exist in the stress concentration zone of the surrounding rock. The target crack is a crack with a crack opening greater than a preset opening. The preset opening is determined based on the average opening of cracks that affect the induced stress in the stress concentration zone of the surrounding rock.

[0030] The second determining unit is used to determine the degree of interference excavation in the stress concentration zone of the surrounding rock based on the above-mentioned layer properties and the above-mentioned induced stress.

[0031] To achieve the above objectives, according to a third aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium comprising a stored program, wherein, when the program is executed by a processor, the steps of the above-described correction method based on tunnel deconstruction-induced stress are implemented.

[0032] To achieve the above objectives, according to a fourth aspect of the present invention, an electronic device is provided, comprising at least one processor and at least one memory connected to the processor; wherein the processor is configured to invoke program instructions in the memory to execute the steps of the above-described correction method based on tunnel deconstruction induced stress.

[0033] By employing the above technical solution, the present invention provides a correction method and related equipment based on tunnel deconstruction-induced stress. This addresses the current problem of insufficient consideration of the impact of induced stress from cracks within the tunnel on tunnel excavation safety. The present invention obtains the layer properties of the stress concentration zone in the surrounding rock of the target tunnel, including tensile strength and shear strength. When cracks exist in the stress concentration zone, the induced stress in the stress concentration zone is determined based on the target crack, where the target crack is a crack with an aperture greater than a preset aperture. The degree of interference with excavation in the stress concentration zone is then determined based on the layer properties and the induced stress. In the above scheme, the excavation of high-stress rock mass will lead to the continuous dissipation and release of strain energy in the surrounding rock, which may induce dynamic geological disasters such as sudden large deformation of cracks, thereby seriously threatening the construction safety of deep-buried tunnel projects. Therefore, the embodiments of the present invention comprehensively consider the induced stress of cracks existing in the stress concentration zone of the surrounding rock during tunnel excavation, and use it to detect the impact of target cracks on the safety of tunnel excavation. Thus, a more comprehensive evaluation standard for the stress concentration zone of the surrounding rock is proposed. This standard comprehensively considers the layer properties and induced stress of the stress concentration zone of the target tunnel, and is more instructive for the excavation of underground engineering.

[0034] Accordingly, the correction device, equipment, and computer-readable storage medium based on tunnel deconstruction-induced stress provided in the embodiments of the present invention also have the above-mentioned technical effects.

[0035] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0036] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0037] Figure 1 A schematic flowchart of a correction method based on tunnel deconstruction-induced stress provided by an embodiment of the present invention is shown.

[0038] Figure 2 A schematic block diagram of a correction device based on tunnel deconstruction-induced stress provided in an embodiment of the present invention is shown.

[0039] Figure 3The diagram shows a schematic block diagram of a correction electronic device based on tunnel deconstruction-induced stress provided by an embodiment of the present invention. Detailed Implementation

[0040] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0041] To address the current lack of consideration for the impact of induced stress from cracks within the tunnel on tunnel excavation safety, this invention provides a correction method based on tunnel structural induced stress, such as... Figure 1 As shown, the method includes:

[0042] S101. Obtain the layer properties of the stress concentration zone of the surrounding rock of the target tunnel. The layer properties include tensile strength and shear strength.

[0043] For example, when the tunnel excavation face is emptied, a stress concentration zone of surrounding rock will be formed in some areas of the tunnel. Excavating the tunnel or continuing to excavate within the stress concentration zone will increase the difficulty of tunnel support. Therefore, the embodiments of the present invention first study the stress concentration zone of surrounding rock.

[0044] Furthermore, test and monitoring tunnels were first excavated in a relatively uniform lithology section at the maximum burial depth of the tunnel. By determining the lithology and soil properties and combining numerical simulation technology, the stress concentration zone of the surrounding rock was identified.

[0045] For example, the tensile strength calculation mentioned above is a very important task in geotechnical engineering. When designing soil and rock engineering projects, it is necessary to calculate the tensile strength of the strata to ensure the stability and safety of the project. This can be obtained through experimental methods and theoretical calculations. The shear strength mentioned above refers to the ultimate ability of soil to resist shear failure, and is one of the important mechanical properties of soil. Problems in engineering such as foundation bearing capacity, earth pressure on retaining walls, and slope stability are all directly related to the shear strength of the soil.

[0046] This invention proposes a more comprehensive evaluation method by taking into account the layer properties of the surrounding rock stress concentration zone of the target tunnel, thus filling the gap in the existing technology for evaluating induced stress by combining layer properties in the surrounding rock stress concentration zone.

[0047] S102. In the case of cracks in the stress concentration zone of the surrounding rock, the induced stress in the stress concentration zone of the surrounding rock is determined based on the target crack. The target crack is a crack with a crack opening greater than a preset opening. The preset opening is determined based on the average opening of cracks that affect the induced stress in the stress concentration zone of the surrounding rock.

[0048] For example, tunnels are prone to cracking due to factors such as materials, temperature, environment, stress conditions, and construction. The presence of cracks leads to stress concentration in the tunnel, which can even affect the stability of the tunnel structure in severe cases. The greater the crack depth, the greater the displacement and stress of the tunnel structure, and the more pronounced the stress concentration at the crack tip. Ultimately, when the stress reaches the strength limit of the rock and soil, it will lead to the instability and failure of the tunnel. Therefore, this embodiment of the invention identifies cracks with a crack aperture greater than a preset aperture and crack depth greater than a preset depth, and focuses on studying these cracks to determine their impact on the aforementioned stress concentration zone in the surrounding rock.

[0049] For example, once cracks appear after tunnel excavation, they will inevitably affect the distribution of ground stress within a certain range of the tunnel, thereby generating an induced stress field. Since the deeper the cracks and the larger the crack spacing in the tunnel direction, the greater the induced stress, and the greater the impact on the extension and morphology of subsequent cracks, in order to control the influence of induced stress on subsequent tunnel excavation and crack extension, this embodiment of the invention focuses on the induced stress of the target crack in the aforementioned stress concentration zone of the surrounding rock.

[0050] S103. Based on the above-mentioned layer properties and the above-mentioned induced stress, determine the degree of interference excavation in the stress concentration zone of the surrounding rock.

[0051] For example, the degree of disturbance excavation in the aforementioned stress concentration zone of the surrounding rock is used to characterize the impact of the stability of the stress concentration zone on tunnel excavation. A higher degree of disturbance excavation indicates a higher degree of instability in the stress concentration zone and a more severe impact on tunnel excavation; a lower degree of disturbance excavation indicates a lower degree of instability in the stress concentration zone and a less severe impact on tunnel excavation. The influence of the aforementioned parameters on the stress concentration zone of the surrounding rock is determined by weighted assignment of tensile strength, shear strength, and induced stress, and then the stability of the stress concentration zone is determined based on the aforementioned layer properties and induced stress.

[0052] By employing the above technical solution, the correction method based on tunnel deconstruction-induced stress provided by this invention addresses the current problem of insufficient consideration of the impact of induced stress from cracks within the tunnel on tunnel excavation safety during tunnel excavation. This invention obtains the layer properties of the stress concentration zone in the surrounding rock of the target tunnel, including tensile strength and shear strength. When cracks exist in the stress concentration zone, the induced stress in the stress concentration zone is determined based on the target crack, where the target crack is a crack with an aperture greater than a preset aperture. The degree of interference with excavation in the stress concentration zone is then determined based on the layer properties and the induced stress. In the above scheme, the excavation of high-stress rock mass will lead to the continuous dissipation and release of strain energy in the surrounding rock, which may induce dynamic geological disasters such as sudden large deformation of cracks, thereby seriously threatening the construction safety of deep-buried tunnel projects. Therefore, the embodiments of the present invention comprehensively consider the induced stress of cracks existing in the stress concentration zone of the surrounding rock during tunnel excavation, and use it to detect the impact of target cracks on the safety of tunnel excavation. Thus, a more comprehensive evaluation standard for the stress concentration zone of the surrounding rock is proposed. This standard comprehensively considers the layer properties and induced stress of the stress concentration zone of the target tunnel, and is more instructive for the excavation of underground engineering.

[0053] In one embodiment, when cracks exist in the aforementioned stress concentration zone of the surrounding rock, determining the induced stress in the stress concentration zone of the surrounding rock based on the target crack includes:

[0054] When cracks exist in the stress concentration zone of the surrounding rock, the induced stress of the target crack is determined based on a two-dimensional mathematical model of crack-induced stress.

[0055] The induced stress in the stress concentration zone of the surrounding rock is determined based on the net pressure of the target fracture, the fracture width, the induced stress, and the Poisson's ratio of the surrounding rock.

[0056] For example, this embodiment of the invention addresses the characteristics of the synchronous expansion of multiple cracks in the stress concentration zone of the surrounding rock during tunnel excavation. Considering the stress barrier effect and stress interference effect between cracks, it analyzes the influence range of the stress induced by each crack in the stress concentration zone of the surrounding rock and its effective net pressure relative to different locations, and establishes a two-dimensional mathematical model of crack-induced stress at different locations in the stress concentration zone of the tunnel surrounding rock.

[0057] For example, the aforementioned net pressure on the fracture is the effective pressure that, during the excavation process, overcomes the fracture closure pressure, borehole friction, and friction along the path, ultimately acting directly on the rock to cause the fracture. This embodiment of the invention considers its ability to reflect the geological conditions during construction, allowing for real-time adjustments to construction measures. The aforementioned fracture width can be obtained using a fracture width tester. The aforementioned Poisson's ratio is a mechanical parameter of rock, defined as the ratio of transverse strain to longitudinal strain, also called the transverse strain coefficient. This embodiment of the invention, by considering the rock Poisson's ratio, helps to more accurately determine the induced stress in the stress concentration zone of the surrounding rock.

[0058] Furthermore, this embodiment of the invention establishes a more comprehensive method for determining the induced stress in the stress concentration zone of the surrounding rock by comprehensively considering the net crack pressure, crack width, induced stress, and Poisson's ratio of the target crack and the aforementioned stress concentration zone of the surrounding rock.

[0059] In one embodiment, the above method further includes:

[0060] The first excavation correction direction for the target tunnel is determined based on the degree of interference excavation in the stress concentration zone of the surrounding rock.

[0061] For example, after determining the induced stress in the stress concentration zone of the surrounding rock using the above method, the stability of the stress concentration zone can be further determined. The degree of excavation interference can be determined by the stability of the stress concentration zone. It is understood that the correspondence between the induced stress in the stress concentration zone and the degree of excavation interference can be obtained by looking up tables or other methods, which will not be listed here.

[0062] Furthermore, if the degree of interference during excavation is high in the aforementioned stress concentration zone, indicating a high degree of instability in the stress concentration zone, then the excavation direction needs to be adjusted accordingly to ensure the safety and stability of the tunnel excavation. It is understandable that the aforementioned first excavation correction direction can be determined by obtaining the surrounding rock stress and induced stress in the surrounding directions, assigning weighted values ​​to both, and comparing the results to determine the direction with higher stability for correction.

[0063] In one embodiment, determining the first excavation correction direction of the target tunnel based on the degree of interference excavation in the surrounding rock stress concentration zone includes:

[0064] When the degree of interference excavation in the stress concentration zone of the surrounding rock is greater than the preset degree of interference excavation, the first excavation correction direction of the target tunnel is determined based on the planned destination of the target tunnel, the stress distribution of the surrounding rock, and the comprehensive evaluation data of cracks.

[0065] For example, in this embodiment of the invention, the planned destination of the target tunnel is taken as the final guide. The surrounding rock stress distribution and crack comprehensive evaluation data of the target tunnel are obtained through experiments and on-site measurements, so as to select the safest and most stable excavation direction.

[0066] In one embodiment, the above method further includes:

[0067] Obtain urban operation work order data within the reference area, wherein the reference area is centered on the stress concentration zone of the surrounding rock and has a preset distance as its radius;

[0068] Based on the aforementioned urban transportation work order data, the target construction project data was determined.

[0069] Based on the aforementioned target construction project data, the planned destination of the aforementioned target tunnel, the stress distribution of the surrounding rock, and the comprehensive evaluation data of cracks, the second excavation correction direction for the aforementioned target tunnel was determined.

[0070] For example, with the construction of smart cities, unified management through a single network, as a new model for smart city operation and management, has covered and penetrated into all aspects of urban operation. The urban operation work order, or simply urban operation work order, is its core component, recording massive amounts of urban management and operation data. Building urban management under unified management through a single network requires identifying key factors in events, studying the objective laws governing urban management operations, effectively allocating and utilizing urban management resources, and providing support for urban management decision-making.

[0071] This invention, through association with urban management work order data, for example, if the aforementioned stress concentration zone in the surrounding rock is location A, and the preset distance is 300 meters, then urban management work order data for the surrounding area with a radius of 800 meters centered on point A is obtained. The construction projects most likely to impact the aforementioned stress concentration zone in the surrounding rock are selected as target construction projects, and the corresponding target construction project data is obtained. It should be noted, for example, that the target construction projects are determined based on the construction scale and the potential impact on the aforementioned stress concentration zone in the surrounding rock. It is understood that, since vertical construction is more likely to affect underground tunnel excavation, this invention prioritizes including vertical construction projects within the scope of consideration for target construction projects.

[0072] In one embodiment, the aforementioned target construction project data includes the construction location, construction content, and construction start time.

[0073] Based on the aforementioned target construction project data, the planned destination of the aforementioned target tunnel, the surrounding rock stress distribution, and the comprehensive evaluation data of cracks, the second excavation correction direction for the aforementioned target tunnel is determined, including:

[0074] Based on the aforementioned construction location, the construction content, and the construction start time, the first excavation correction direction was adjusted to determine the second excavation correction direction for the aforementioned target tunnel.

[0075] Furthermore, existing urban operation work order analysis already covers statistical analysis of work order type and geographical location information. Based on the above-mentioned construction location, construction content, and construction start time, the embodiments of the present invention further modify the above-mentioned first excavation correction direction.

[0076] In one embodiment, the aforementioned target construction project data also includes the construction route.

[0077] Based on the aforementioned construction location, construction content, and construction start time, the first excavation correction direction is adjusted to determine the second excavation correction direction for the aforementioned target tunnel, including:

[0078] In the event that the above-mentioned construction direction indicates a conflict between the target construction project and the second excavation correction direction of the target tunnel, the construction completion time of the target project is estimated based on the above-mentioned construction content and the above-mentioned construction start time.

[0079] Based on the aforementioned construction completion time, the second excavation correction direction of the target tunnel is adjusted to obtain the third excavation correction direction.

[0080] For example, since construction work is not only carried out in a fixed area, some construction may also extend in other directions, such as the construction of railway tracks. Therefore, this embodiment of the invention also acquires the construction direction in real time, and further predicts whether the target construction project will affect the excavation of the target tunnel by comprehensively analyzing the construction direction, thereby providing further guidance for correcting the direction of tunnel excavation.

[0081] Furthermore, as a response to the above Figure 1 In addition to the implementation of the method shown, this embodiment of the invention also provides a correction device based on tunnel deconstruction-induced stress, used for the above-mentioned... Figure 1 The method shown is implemented accordingly. This device embodiment corresponds to the foregoing method embodiment. For ease of reading, this device embodiment will not repeat the details of the foregoing method embodiment, but it should be clear that the device in this embodiment can implement all the contents of the foregoing method embodiment. Figure 2 As shown, the device includes: an acquisition unit 21, a first determination unit 22, and a second determination unit 23, wherein...

[0082] The acquisition unit 21 is used to acquire the layer properties of the stress concentration zone of the surrounding rock of the target tunnel, including tensile strength and shear strength.

[0083] The first determining unit 22 is used to determine the induced stress in the stress concentration zone of the surrounding rock based on the target crack when there is a crack in the stress concentration zone of the surrounding rock. The target crack is a crack with a crack opening greater than a preset opening. The preset opening is determined based on the average opening of the cracks that affect the induced stress in the stress concentration zone of the surrounding rock.

[0084] The second determining unit 23 is used to determine the degree of interference excavation in the stress concentration zone of the surrounding rock based on the above-mentioned layer properties and the above-mentioned induced stress.

[0085] The processor contains a kernel, which retrieves the corresponding program units from memory. One or more kernels can be configured, and by adjusting kernel parameters, a correction method based on tunnel deconstruction-induced stress can be implemented. This addresses the current lack of consideration for the impact of induced stress from cracks within the tunnel on tunnel excavation safety.

[0086] This invention provides a computer-readable storage medium including a stored program that, when executed by a processor, implements the aforementioned correction method based on tunnel deconstruction-induced stress.

[0087] This invention provides a processor for running a program, wherein the program executes the aforementioned correction method based on tunnel deconstruction-induced stress.

[0088] This invention provides an electronic device, which includes at least one processor and at least one memory connected to the processor; wherein the processor is used to call program instructions in the memory to execute the correction method based on tunnel deconstruction-induced stress as described above.

[0089] This invention provides an electronic device 30, such as... Figure 3 As shown, the electronic device includes at least one processor 301, and at least one memory 302 and bus 303 connected to the processor; wherein, the processor 301 and the memory 302 communicate with each other through the bus 303; the processor 301 is used to call program instructions in the memory to execute the above-mentioned correction method based on tunnel deconstruction induced stress.

[0090] The smart electronic devices mentioned in this article can be PCs, tablets, mobile phones, etc.

[0091] This application also provides a computer program product that, when executed on a process management electronic device, is suitable for executing a program that initializes the above-described steps of the correction method based on tunnel deconstruction-induced stress.

[0092] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0093] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0094] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0095] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0096] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0097] This application also provides a computer program product, which includes computer software instructions that, when executed on a processing device, cause the processing device to perform actions such as... Figure 1The control flow of the memory in the corresponding embodiment.

[0098] A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0099] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0100] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between apparatuses or units, and may be electrical, mechanical, or other forms.

[0101] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0102] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0103] If the integrated unit is implemented as 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 this application, in essence, 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. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0104] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A correction method based on tunnel deconstruction-induced stress, characterized in that, include: Obtain the layer properties of the stress concentration zone of the surrounding rock of the target tunnel, including tensile strength and shear strength; When cracks exist in the stress concentration zone of the surrounding rock, the induced stress in the stress concentration zone of the surrounding rock is determined based on the target crack. The target crack is a crack with a crack aperture greater than a preset aperture. The preset aperture is determined based on the average aperture of cracks that affect the induced stress in the stress concentration zone of the surrounding rock. The degree of interference excavation in the stress concentration zone of the surrounding rock is determined based on the aforementioned layer properties and the induced stress. The first excavation correction direction of the target tunnel is determined based on the degree of interference excavation in the stress concentration zone of the surrounding rock. If the degree of interference excavation in the stress concentration zone of the surrounding rock is greater than the preset degree of interference excavation, the first excavation correction direction of the target tunnel is determined based on the planned destination of the target tunnel, the stress distribution of the surrounding rock, and the comprehensive evaluation data of cracks. The city transport work order data within the reference area is obtained. The reference area is centered on the surrounding rock stress concentration zone and has a preset distance as its radius. Target construction project data is determined based on the city transport work order data. A second excavation correction direction for the target tunnel is determined based on the target construction project data, the planned destination of the target tunnel, the surrounding rock stress distribution, and the comprehensive evaluation data of cracks. The target construction project data includes the construction location, construction content, and construction start time. The first excavation correction direction is corrected based on the construction location, construction content, and construction start time to determine the second excavation correction direction for the target tunnel.

2. The method according to claim 1, characterized in that, In the case where cracks exist in the stress concentration zone of the surrounding rock, the induced stress in the stress concentration zone of the surrounding rock is determined based on the target crack, including: When cracks exist in the stress concentration zone of the surrounding rock, the induced stress of the target crack is determined based on a two-dimensional mathematical model of crack-induced stress. The induced stress in the stress concentration zone of the surrounding rock is determined based on the net pressure of the target fracture, the fracture width, the induced stress, and the Poisson's ratio of the rock in the stress concentration zone.

3. The method according to claim 1, characterized in that, The target construction project data also includes the construction route. Based on the construction location, construction content, and construction start time, the first excavation correction direction is adjusted to determine the second excavation correction direction of the target tunnel, including: In the event that the construction direction, which represents the target construction project, conflicts with the second excavation correction direction of the target tunnel, the construction completion time of the target project is estimated based on the construction content and the construction start time. The second excavation correction direction of the target tunnel is adjusted based on the construction completion time to obtain the third excavation correction direction.

4. A correction device based on tunnel deconstruction-induced stress, characterized in that, include: The acquisition unit is used to acquire the layer properties of the stress concentration zone of the surrounding rock of the target tunnel, the layer properties including tensile strength and shear strength; The first determining unit is used to determine the induced stress in the stress concentration zone of the surrounding rock based on a target crack when cracks exist in the stress concentration zone of the surrounding rock. The target crack is a crack with a crack aperture greater than a preset aperture, and the preset aperture is determined based on the average aperture of cracks that affect the induced stress in the stress concentration zone of the surrounding rock. The second determining unit is used to determine the degree of interference excavation in the stress concentration zone of the surrounding rock based on the layer properties and the induced stress, determine the first excavation correction direction of the target tunnel based on the degree of interference excavation in the stress concentration zone of the surrounding rock, and determine the first excavation correction direction of the target tunnel based on the planned destination of the target tunnel, the stress distribution of the surrounding rock and the comprehensive evaluation data of cracks when the degree of interference excavation in the stress concentration zone of the surrounding rock is greater than the preset degree of interference excavation. The city transport work order data within the reference area is obtained. The reference area is centered on the surrounding rock stress concentration zone and has a preset distance as its radius. Target construction project data is determined based on the city transport work order data. A second excavation correction direction for the target tunnel is determined based on the target construction project data, the planned destination of the target tunnel, the surrounding rock stress distribution, and the comprehensive evaluation data of cracks. The target construction project data includes the construction location, construction content, and construction start time. The first excavation correction direction is corrected based on the construction location, construction content, and construction start time to determine the second excavation correction direction for the target tunnel.

5. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein, when the program is executed by a processor, it implements the correction method based on tunnel deconstruction-induced stress as described in any one of claims 1 to 3.

6. An electronic device, characterized in that, The electronic device includes at least one processor and at least one memory connected to the processor; wherein the processor is configured to call program instructions in the memory to execute the correction method based on tunnel deconstruction induced stress as described in any one of claims 1 to 3.

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