High-pressure cavern hole diameter calculation method and related device

Abstract

The invention discloses a method for calculating the hole diameter of a high-pressure cavern and a related device, and belongs to the technical field of geotechnical engineering.The method comprises the following steps that anti-lifting control analysis is conducted, and the hole diameter limiting condition under the anti-lifting condition is obtained; the primary rock stress and shear modulus of the high-pressure cavern are obtained for construction period surrounding rock deformation control analysis, and the cavern diameter limiting condition under the construction period surrounding rock deformation condition is obtained; the surrounding rock plastic zone radius of the high-pressure cavern is obtained, operation period plastic zone control analysis is conducted, and the cavern diameter limiting condition under the operation period plastic zone radius condition is obtained; and determining a minimum hole diameter limit value by combining a hole diameter limit condition under an anti-lifting condition, a hole diameter limit condition under a surrounding rock deformation condition in a construction period and a hole diameter limit condition under a plastic zone radius condition in an operation period so as to obtain the maximum hole diameter of the high-pressure cavern. According to the method, factors of surrounding rock lifting displacement deformation and surrounding rock deformation in the construction period and the operation period can be comprehensively considered, and the diameter of the high-pressure cavern is accurately and reasonably selected.

Description

Technical Field

[0001] The present invention belongs to the technical field of geotechnical engineering, and in particular relates to a method for calculating the diameter of a high-pressure cavern and a related device. Background Art

[0002] As the world responds to climate change and accelerates the transition to a green, low-carbon energy system, the rapid development of energy storage technologies, represented by pumped hydro and compressed gas storage, is imperative. Pumped hydro power stations often utilize underground pipes for their water distribution systems, with designed water heads reaching up to a kilometer. Compressed gas storage requires large, sealed vessels to store high-pressure fluids, making underground rock tunnels a preferred option due to their low construction costs and high safety.

[0003] However, in the design and construction of high-pressure caverns (including gas storage caverns and water storage caverns), determining the size of the cavern diameter has always been a critical and complex problem. Currently, existing technologies have many limitations when calculating the diameter of high-pressure caverns. Existing calculation methods often fail to fully and comprehensively consider the impact of surrounding rock on uplift displacement and deformation, and also ignore the dynamic changes in surrounding rock deformation factors during the construction and operation stages. The lack of these key factors leads to a lack of accurate and reasonable basis for selecting the diameter of the high-pressure cavern, which may lead to a series of engineering problems, such as insufficient cavern structural safety, damage to surrounding rock stability, and increased project investment costs, which seriously restrict the safe and efficient construction and long-term stable operation of high-pressure cavern projects. Summary of the Invention

[0004] The purpose of the present invention is to provide a method for calculating the diameter of a high-pressure cavern and related devices to solve the problem that the existing technology is unable to comprehensively consider the factors of surrounding rock uplift displacement deformation, as well as surrounding rock deformation during construction and operation periods, and accurately and reasonably select the diameter of the high-pressure cavern.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: In a first aspect, a method for calculating the diameter of a high-pressure cavern comprises the following steps: Obtain the rock mass, shear strength, and gas storage pressure of the high-pressure cavern, and perform anti-lift control analysis based on the corresponding equations to obtain the cavern diameter restriction under anti-lift conditions. Obtain the original rock stress and shear modulus of the high-pressure cavern to conduct surrounding rock deformation control analysis during construction, and obtain the cavern diameter restriction conditions under the surrounding rock deformation conditions during construction; Based on the modified Fenner formula, the plastic zone radius of the surrounding rock of the high-pressure cavern is obtained, and the plastic zone control analysis during operation is carried out to obtain the cavern diameter restriction conditions under the plastic zone radius conditions during operation. Combined with the cave diameter restriction conditions under the anti-lifting conditions, the cave diameter restriction conditions under the surrounding rock deformation conditions during the construction period, and the cave diameter restriction conditions under the plastic zone radius conditions during the operation period, the minimum cave diameter restriction value is determined to calculate the maximum cave diameter of the high-pressure cavern.

[0006] In some embodiments, the hole diameter restriction condition under the anti-lifting condition is a hole diameter restriction condition required by a vertical burial depth and a hole diameter restriction condition required by a horizontal burial depth.

[0007] In some embodiments, the hole diameter constraint condition required by the vertical burial depth is as follows:

[0008]

[0009]

[0010] in, is the diameter of the high-pressure cavern required for vertical burial depth, is the gas storage pressure, is the rock mass, is the length of the high-pressure chamber, For cohesion, is the friction angle, is the safety factor, is the rupture angle, is the lateral pressure coefficient, The vertical burial depth.

[0011] In some embodiments, the hole diameter restriction condition required by the horizontal burial depth is as follows:

[0012]

[0013]

[0014] in, is the diameter of the high-pressure cavern required for horizontal burial depth, is the gas storage pressure, is the rock mass, is the length of the high-pressure chamber, For cohesion, is the friction angle, is the safety factor, is the rupture angle, is the lateral pressure coefficient, Horizontal burial depth.

[0015] In some embodiments, the step of controlling and analyzing surrounding rock deformation during construction specifically includes: After presetting the isotropic stress of the original rock and the circular cross-section of the high-pressure cavern, the maximum deformation of the surrounding rock under different rock mass elastic moduli and Poisson's ratios was analyzed based on elastic mechanics. Based on the original rock stress, maximum deformation of the surrounding rock and shear modulus, the tunnel diameter restriction under the surrounding rock deformation condition during the construction period is analyzed and obtained; The limiting condition of the hole diameter under the surrounding rock deformation condition during the construction period is as follows:

[0016] in, is the diameter of the high-pressure cavern under the surrounding rock deformation condition during the construction period, is the shear modulus, is the maximum deformation of the surrounding rock under different rock mass elastic modulus and rock mass Poisson's ratio, is the original rock stress.

[0017] In some embodiments, the step of obtaining the plastic zone radius of the surrounding rock of the high-pressure cavern based on the modified Fenner formula and performing plastic zone control analysis during operation specifically includes: After presetting the isotropic stress of the original rock and the ideal elastic-plastic properties of the rock mass in the high-pressure cavern, the maximum plastic zone radius of the surrounding rock under different saturated compressive strengths was obtained by combining the modified Fenner formula. Based on the maximum surrounding rock plastic zone radius and original rock stress, the tunnel diameter restriction condition under the plastic zone radius condition during operation is analyzed and obtained; The hole diameter restriction condition under the plastic zone radius condition during the operation period is as follows:

[0018] in, is the diameter of the high-pressure cavern under the plastic zone radius condition during operation, is the maximum plastic zone radius of surrounding rock under different saturated compressive strength of rock mass, is the original rock stress, is the gas storage pressure, is the saturated compressive strength of rock mass.

[0019] In a second aspect, a system for calculating a diameter of a high-pressure cavern comprises: The anti-uplift cavern diameter limitation analysis module is used to obtain the rock mass, shear strength, and gas storage pressure of the high-pressure cavern, and perform anti-uplift control analysis based on the corresponding equations to obtain the cavern diameter limitation conditions under anti-uplift conditions; The tunnel diameter limitation analysis module for surrounding rock deformation during construction is used to obtain the original rock stress and shear modulus of the high-pressure tunnel to conduct surrounding rock deformation control analysis during construction and obtain the tunnel diameter limitation conditions under the surrounding rock deformation conditions during construction; The tunnel diameter limitation analysis module for the plastic zone radius during operation is used to obtain the plastic zone radius of the surrounding rock of the high-pressure cavern based on the modified Fenner formula, conduct plastic zone control analysis during operation, and obtain the tunnel diameter limitation conditions under the plastic zone radius conditions during operation; The maximum cave diameter determination module is used to determine the minimum cave diameter limitation value in combination with the cave diameter limitation conditions under the anti-lifting conditions, the cave diameter limitation conditions under the surrounding rock deformation conditions during the construction period, and the cave diameter limitation conditions under the plastic zone radius conditions during the operation period to calculate the maximum cave diameter of the high-pressure cavern.

[0020] In a third aspect, an electronic device includes a memory, a processor, and a computer program stored in the memory and executable in the processor, wherein the processor implements the steps of the method for calculating the diameter of a high-pressure cavern when executing the computer program.

[0021] In a fourth aspect, a computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the method for calculating the diameter of a high-pressure cavern.

[0022] In a fifth aspect, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the steps of the method for calculating the diameter of a high-pressure cavern.

[0023] Compared with the prior art, the present invention has the following beneficial effects: The present invention determines the maximum diameter of the high-pressure cavern with the minimum diameter limit value by analyzing the cavern diameter limitation conditions under anti-lifting conditions, the cavern diameter limitation conditions under surrounding rock deformation conditions during construction, and the cavern diameter limitation conditions under the plastic zone radius conditions during operation. This can avoid the waste of engineering costs caused by over-conservative design, and can reduce the investment in temporary support measures and the construction risk-induced delays and claim costs by accurately controlling the surrounding rock deformation during construction. Through strict constraints on the plastic zone radius during operation, the service life of the cavern can be extended and the operation and maintenance costs such as later repairs and reinforcement can be reduced.

[0024] Furthermore, by introducing the cave diameter restriction conditions of vertical burial depth and horizontal burial depth, parameters such as rock mass gravity, shear strength, and gas storage pressure are explicitly considered. Combined with geomechanical parameters such as fracture angle and lateral pressure coefficient, the risk of instability caused by the upward displacement of surrounding rock during cavern excavation can be effectively avoided, and the probability of accidents such as cave roof collapse and surface uplift can be reduced.

[0025] Furthermore, based on elastic mechanics theory and incorporating parameters such as shear modulus and maximum deformation of the surrounding rock, a construction-period tunnel diameter constraint was proposed. This quantitatively assesses the elastic deformation of the surrounding rock during excavation, preventing support structure failure or excessive tunnel convergence due to excessive deformation. Furthermore, by pre-setting the isotropy of in-situ rock stress, calculation parameters can be adjusted for different geological environments, ensuring the scientific nature of the deformation control plan during construction.

[0026] Furthermore, combined with the modified Fenner formula, the saturated compressive strength of the rock mass is introduced to calculate the maximum radius of the plastic zone of the surrounding rock under different rock mass conditions, and the limiting conditions of the cavern diameter during operation are obtained. This can effectively prevent the problems of cavern leakage and surrounding rock softening caused by excessive expansion of the plastic zone, and ensure the long-term stability of the cavern. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the structure of the high-pressure chamber in the embodiment; Figure 2 This is the cone calculation model under the vertical burial depth requirement of the high-pressure cavern in the embodiment; Figure 3 It is the cone calculation model under the horizontal burial depth requirement of the high-pressure cavern in the embodiment; Figure 4 A flowchart of a method for calculating the diameter of a high-pressure cavern provided in an embodiment; Figure 5 A structural diagram of a high-pressure cavern diameter calculation system provided in an embodiment.

[0028] In the figure, 1. High-pressure cavern; 2. Vertical cone; 3. Horizontal cone; 4. High-pressure cavern diameter; 5. High-pressure cavern length; 6. Vertical burial depth of high-pressure cavern; 7. Horizontal burial depth of high-pressure cavern; 8. Rock and soil fracture angle. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution of the present invention will be further described in detail below with reference to the accompanying drawings. The content described is intended to explain rather than limit the present invention.

[0030] It should be noted that the terms "including" and "having" and any variations thereof in the description and claims of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or are inherent to these processes, methods, systems, products or apparatus.

[0031] like Figure 4As shown, the diameter of an artificial high-pressure cavern is mainly affected by rock mass conditions such as the elastic modulus, burial depth, in-situ rock stress, internal pressure, cohesion, and friction angle of the surrounding rock. The cavern diameter is determined from the perspectives of anti-lifting and surrounding rock deformation during construction and operation. Therefore, this embodiment provides a method for calculating the diameter of a high-pressure cavern, including the following steps: S1: First, the impact of the high-pressure cavern on the ground needs to be controlled, that is, the rock mass, shear strength and gas storage pressure should meet the requirements. ,in is the safety factor, is the tunnel pressure during operation, is the gravity of the overlying rock, is the shear strength of the fracture surface of the overlying rock mass; Obtain the rock mass, shear strength and gas storage pressure of the high-pressure cavern, such as Figure 1 As shown in the figure, set the basic parameters of the high pressure chamber, and then Figures 2 to 3 As shown in the figure, a cone model is used to establish the vertical and horizontal burial depth mechanical equations of the high-pressure cavern, and then the corresponding equations are combined to perform anti-uplift control analysis, and the cave diameter restriction conditions under the anti-uplift condition are obtained; The hole diameter restriction condition under the anti-lifting condition is the hole diameter restriction condition required by the vertical burial depth or the hole diameter restriction condition required by the horizontal burial depth; The hole diameter restriction condition based on the vertical burial depth requirement of the vertical cone model is obtained by the following formula:

[0032]

[0033]

[0034] The hole diameter restriction condition required for vertical burial depth is as follows:

[0035]

[0036]

[0037] In the above formula, is the diameter of the high-pressure cavern required for vertical burial depth, The gravity of the overlying rock mass required for the vertical burial depth, The shear strength of the fracture surface of the overlying rock mass required for the vertical burial depth, The shear strength of the fracture surface of the overlying rock mass required for the vertical burial depth, is the gas storage pressure, is the rock mass, is the length of the high-pressure chamber, For cohesion, is the friction angle, is the safety factor, is the rupture angle, is the lateral pressure coefficient, The vertical burial depth.

[0038] The hole diameter restriction condition based on the horizontal burial depth requirement of the horizontal cone model is obtained by the following formula:

[0039]

[0040]

[0041] The hole diameter restriction condition required for horizontal burial depth is as follows:

[0042]

[0043]

[0044] In the above formula, is the diameter of the high-pressure cavern required for horizontal burial depth, is the gravity of the overlying rock mass required for the horizontal burial depth, is the shear strength of the fracture surface of the overlying rock mass required for the horizontal burial depth, is the shear strength of the fracture surface of the overlying rock mass required for the horizontal burial depth, is the gas storage pressure, is the rock mass, is the length of the high-pressure chamber, For cohesion, is the friction angle, is the safety factor, is the rupture angle, is the lateral pressure coefficient, Horizontal burial depth.

[0045] S2: Obtain the original rock stress and shear modulus of the high-pressure cavern to conduct surrounding rock deformation control analysis during construction, and obtain the cavern diameter restriction conditions under the surrounding rock deformation conditions during construction; Specifically, assuming that the original rock stress is isotropic and the cross-section of the high-pressure cavern is circular, the maximum deformation of the surrounding rock under different rock elastic moduli and Poisson's ratios is analyzed according to elastic mechanics theory. Based on the original rock stress, maximum deformation of the surrounding rock, and shear modulus, the cavern diameter restriction under the surrounding rock deformation condition during construction is obtained through analysis and is achieved through the following formula:

[0046]

[0047] By referring to relevant engineering specifications and comparative analysis of similar projects, the tunnel diameter restriction condition under the surrounding rock deformation condition during construction is determined as follows:

[0048] In the above formula, is the diameter of the high-pressure cavern under the surrounding rock deformation condition during the construction period, is the shear modulus, is the maximum deformation of the surrounding rock under different rock mass elastic modulus and rock mass Poisson's ratio, is the original rock stress, is the elastic modulus of rock mass, is the Poisson's ratio of the rock mass.

[0049] S3: Based on the modified Fenner formula, the plastic zone radius of the surrounding rock of the high-pressure cavern is obtained, and the plastic zone control analysis during operation is carried out to obtain the cavern diameter restriction conditions under the plastic zone radius conditions during operation; Specifically, after presetting the isotropic nature of the original rock stress and the ideal elastic-plastic properties of the rock mass in the high-pressure cavern, the modified Fenner formula was combined to obtain the maximum radius of the surrounding rock plastic zone under different rock mass saturated compressive strengths. Based on the maximum radius of the surrounding rock plastic zone and the original rock stress, the tunnel diameter restriction condition under the plastic zone radius condition during operation was analyzed and obtained, which was achieved through the following formula:

[0050] By referring to relevant engineering specifications and comparative analysis of similar projects, the hole diameter restriction condition under the plastic zone radius condition during operation is determined as follows:

[0051] In the above formula, is the diameter of the high-pressure cavern under the plastic zone radius condition during operation, is the maximum plastic zone radius of surrounding rock under different saturated compressive strength of rock mass, is the original rock stress, is the gas storage pressure, is the saturated compressive strength of rock mass.

[0052] S4: Based on the cave diameter restriction conditions under the anti-lifting condition, the cave diameter restriction conditions under the surrounding rock deformation condition during the construction period, and the cave diameter restriction conditions under the plastic zone radius condition during the operation period, the minimum cave diameter restriction value is determined to calculate the maximum cave diameter of the high-pressure cavern, which is achieved by the following formula:

[0053] The relevant parameters of a high-pressure cavern are as follows: rock mass 0.026MN / m 3, cohesion 0.5MPa, friction angle 45°, Poisson's ratio 0.25, elastic modulus 8GPa, initial ground stress 10MPa, cavern length 1000m, vertical burial depth 100m, horizontal burial depth 100m, maximum gas storage pressure 10MPa, and safety factor 1.2.

[0054] Through the calculation method of the high-pressure cavern diameter provided by the above embodiment, referring to relevant engineering specifications and similar projects, the radial deformation allowed during the construction period is u m Take 2cm, and the maximum plastic zone radius allowed for the surrounding rock during operation is 2m.

[0055] Finally, the above formula is used to calculate the simultaneous satisfaction and The diameter of the high-pressure cavern is 20.7m. is 25.6m, It is 22.9m. Therefore, by comparing the requirements of anti-uplift and surrounding rock deformation during construction and operation, the maximum diameter of the high-pressure cavern is determined to be 20.7m.

[0056] like Figure 5 As shown, this embodiment further provides a high-pressure cavern diameter calculation system, including: The anti-uplift cavern diameter limitation analysis module is used to obtain the rock mass, shear strength, and gas storage pressure of the high-pressure cavern, and perform anti-uplift control analysis based on the corresponding equations to obtain the cavern diameter limitation conditions under anti-uplift conditions; The tunnel diameter limitation analysis module for surrounding rock deformation during construction is used to obtain the original rock stress and shear modulus of the high-pressure tunnel to conduct surrounding rock deformation control analysis during construction and obtain the tunnel diameter limitation conditions under the surrounding rock deformation conditions during construction; The tunnel diameter limitation analysis module for the plastic zone radius during operation is used to obtain the plastic zone radius of the surrounding rock of the high-pressure cavern based on the modified Fenner formula, conduct plastic zone control analysis during operation, and obtain the tunnel diameter limitation conditions under the plastic zone radius conditions during operation; The maximum cave diameter determination module is used to determine the minimum cave diameter limitation value in combination with the cave diameter limitation conditions under the anti-lifting conditions, the cave diameter limitation conditions under the surrounding rock deformation conditions during the construction period, and the cave diameter limitation conditions under the plastic zone radius conditions during the operation period to calculate the maximum cave diameter of the high-pressure cavern.

[0057] The module division in the embodiments of the present invention is illustrative and represents only one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional modules in various embodiments of the present invention may be integrated into a single processor, exist physically as separate modules, or two or more modules may be integrated into a single module. The integrated modules may be implemented in either hardware or software functional modules.

[0058] This embodiment also provides a computer device, which includes a processor and a memory. The memory is used to store a computer program (in this embodiment, the computer program includes a computing component and an iterative component, and is capable of performing model calculations and model updates). The computer program includes program instructions, and the processor is used to execute the program instructions stored in the computer storage medium. The processor may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. It is the computing core and control core of the terminal, and is suitable for implementing one or more instructions, specifically suitable for loading and executing one or more instructions in the computer storage medium to implement the corresponding method flow or corresponding function. The processor described in this embodiment of the present invention can be used to operate a method for calculating the diameter of a high-voltage cavern.

[0059] This embodiment also provides a storage medium, specifically a computer-readable storage medium (Memory). The computer-readable storage medium is a memory device in a computer device for storing programs and data. It is understandable that the computer-readable storage medium here can include both built-in storage media in the computer device and, of course, extended storage media supported by the computer device. The computer-readable storage medium provides a storage space that stores the terminal's operating system. In addition, the storage space also stores one or more instructions suitable for being loaded and executed by the processor. These instructions can be one or more computer programs (including program code). It should be noted that the computer-readable storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. The processor can load and execute one or more instructions stored in the computer-readable storage medium to implement the corresponding steps of the method for calculating the diameter of a high-pressure cavern in the above embodiment.

[0060] This embodiment further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the corresponding steps of the method for calculating the diameter of a high-pressure cavern in the above embodiment are implemented.

[0061] It will be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0062] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts 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, a special-purpose computer, an embedded processor, or other programmable data processing device to produce 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 flowcharts and / or block diagrams. 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.

[0063] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work 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 The function specified in one or more boxes.

[0064] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A method for calculating the diameter of a high-pressure cavern, characterized in that: The following steps are involved: Obtain the rock mass, shear strength, and gas storage pressure of the high-pressure cavern, and perform anti-lift control analysis based on the corresponding equations to obtain the cavern diameter restriction under anti-lift conditions. Obtain the original rock stress and shear modulus of the high-pressure cavern to conduct surrounding rock deformation control analysis during construction, and obtain the cavern diameter restriction conditions under the surrounding rock deformation conditions during construction; Based on the modified Fenner formula, the plastic zone radius of the surrounding rock of the high-pressure cavern is obtained, and the plastic zone control analysis during operation is carried out to obtain the cavern diameter restriction conditions under the plastic zone radius conditions during operation. Combined with the cave diameter restriction conditions under the anti-lifting conditions, the cave diameter restriction conditions under the surrounding rock deformation conditions during the construction period, and the cave diameter restriction conditions under the plastic zone radius conditions during the operation period, the minimum cave diameter restriction value is determined to calculate the maximum cave diameter of the high-pressure cavern.

2. The method for calculating the diameter of a high-pressure cavern according to claim 1, characterized in that: The hole diameter restriction conditions under the anti-lifting conditions are the hole diameter restriction conditions required by the vertical burial depth and the hole diameter restriction conditions required by the horizontal burial depth.

3. The method for calculating the diameter of a high-pressure cavern according to claim 2, characterized in that: The hole diameter restriction condition required for the vertical burial depth is as follows: in, is the diameter of the high-pressure cavern required for vertical burial depth, is the gas storage pressure, is the rock mass, is the length of the high-pressure chamber, For cohesion, is the friction angle, is the safety factor, is the rupture angle, is the lateral pressure coefficient, The vertical burial depth.

4. The method for calculating the diameter of a high-pressure cavern according to claim 2, characterized in that: The hole diameter restriction condition required for the horizontal burial depth is as follows: in, is the diameter of the high-pressure cavern required for horizontal burial depth, is the gas storage pressure, is the rock mass, is the length of the high-pressure chamber, For cohesion, is the friction angle, is the safety factor, is the rupture angle, is the lateral pressure coefficient, Horizontal burial depth.

5. The method for calculating the diameter of a high-pressure cavern according to claim 1, characterized in that: The steps of surrounding rock deformation control analysis during construction specifically include: After presetting the isotropic stress of the original rock and the circular cross-section of the high-pressure cavern, the maximum deformation of the surrounding rock under different rock mass elastic moduli and Poisson's ratios was analyzed based on elastic mechanics. Based on the original rock stress, maximum deformation of the surrounding rock and shear modulus, the tunnel diameter restriction under the surrounding rock deformation condition during the construction period is analyzed and obtained; The limiting condition of the hole diameter under the surrounding rock deformation condition during the construction period is as follows: in, is the diameter of the high-pressure cavern under the surrounding rock deformation condition during the construction period, is the shear modulus, is the maximum deformation of the surrounding rock under different rock mass elastic modulus and rock mass Poisson's ratio, is the original rock stress.

6. The method for calculating the diameter of a high-pressure cavern according to claim 1, characterized in that: The steps of obtaining the plastic zone radius of the surrounding rock of the high-pressure cavern based on the modified Fenner formula and performing plastic zone control analysis during operation specifically include: After presetting the isotropic stress of the original rock and the ideal elastic-plastic properties of the rock mass in the high-pressure cavern, the maximum plastic zone radius of the surrounding rock under different saturated compressive strengths was obtained by combining the modified Fenner formula. Based on the maximum surrounding rock plastic zone radius and original rock stress, the tunnel diameter restriction condition under the plastic zone radius condition during operation is analyzed and obtained; The hole diameter restriction condition under the plastic zone radius condition during the operation period is as follows: in, is the diameter of the high-pressure cavern under the plastic zone radius condition during operation, is the maximum plastic zone radius of surrounding rock under different saturated compressive strength of rock mass, is the original rock stress, is the gas storage pressure, is the saturated compressive strength of rock mass.

7. A high-pressure cavern diameter calculation system, characterized in that: include: The anti-uplift cavern diameter limitation analysis module is used to obtain the rock mass, shear strength, and gas storage pressure of the high-pressure cavern, and perform anti-uplift control analysis based on the corresponding equations to obtain the cavern diameter limitation conditions under anti-uplift conditions; The tunnel diameter limitation analysis module for surrounding rock deformation during construction is used to obtain the original rock stress and shear modulus of the high-pressure tunnel to conduct surrounding rock deformation control analysis during construction and obtain the tunnel diameter limitation conditions under the surrounding rock deformation conditions during construction; The tunnel diameter limitation analysis module for the plastic zone radius during operation is used to obtain the plastic zone radius of the surrounding rock of the high-pressure cavern based on the modified Fenner formula, conduct plastic zone control analysis during operation, and obtain the tunnel diameter limitation conditions under the plastic zone radius conditions during operation; The maximum cave diameter determination module is used to determine the minimum cave diameter limitation value in combination with the cave diameter limitation conditions under the anti-lifting conditions, the cave diameter limitation conditions under the surrounding rock deformation conditions during the construction period, and the cave diameter limitation conditions under the plastic zone radius conditions during the operation period to calculate the maximum cave diameter of the high-pressure cavern.

8. An electronic device, characterized in that: The method comprises a memory, a processor, and a computer program stored in the memory and executable in the processor, wherein when the processor executes the computer program, the method implements the steps of the method for calculating the diameter of a high-pressure cavern as claimed in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for calculating the diameter of a high-pressure cavern described in any one of claims 1 to 6 are implemented.

10. A computer program product, comprising a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method for calculating the diameter of a high-pressure cavern described in any one of claims 1 to 6 are implemented.

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