Method and system for calculating thickness of bottom plate of circular ultra-deep vertical shaft

Abstract

According to the method and system for calculating the thickness of the bottom plate of the circular ultra-deep vertical shaft, the influence of the frictional resistance on the outer side of the diaphragm wall is considered and not considered respectively, two anti-floating stable calculation equations are established based on the anti-floating coefficient, the more conservative thickness of the bottom plate is selected by comparing the two calculation results, the reliability of the calculation results is ensured, and the calculation accuracy is improved. The structural safety is improved; compared with a traditional complex three-dimensional finite element and seepage analysis method, the method has the advantages that the calculation process is simple, parameters required for calculation such as the underground water level and the structure size are convenient to obtain, and the calculation time and the labor cost can be greatly saved. Based on the anti-floating safety coefficient, the method for calculating the thickness of the bottom plate of the circular ultra-deep vertical shaft is efficient, reliable and easy for engineering application, has both theoretical preciseness and practical feasibility, and provides a reliable theoretical basis for determining the thickness of the bottom plate of the circular ultra-deep vertical shaft.

Description

Technical Field

[0001] The invention belongs to the technical field of vertical shaft engineering and relates to a method and system for calculating the bottom plate thickness of a vertical shaft. Background Art

[0002] Vertical shaft structures are widely used in water conservancy and hydropower projects, subway projects, and transportation projects. Their main functions are ventilation, drainage, transportation, fire protection, TBM excavation, and water pump layout. Ultra-deep vertical shafts are greater than 50 meters deep. Compared to rectangular shafts, circular shafts have many advantages, including ample space utilization, no need for internal support systems, pressure-based forces on the shaft lining, better structural stress conditions, larger internal space, ample space for bottom construction and permanent equipment layout, and convenient vertical transportation of materials during construction.

[0003] Because circular ultra-deep shafts are generally deep, sometimes exceeding 100 meters, and are often located near waterways such as reservoirs and ditches, where groundwater levels are high, anti-seepage treatment is necessary. To ensure the anti-seepage safety of permanent equipment such as pumping stations, the side walls generally use ground-connected walls for anti-seepage. The bottom slab, instead of a permeable bottom slab, which has relatively poor anti-seepage performance, often adopts a fully enclosed structure with a double-layer lining and floor. The supporting structure is a circular composite lining structure, with an outer circular reinforced concrete ground-connected wall and an inner circular reinforced concrete lining. The two layers share the load and form a single unit. The structure primarily includes a cap beam, ground-connected wall, inner lining wall, and bottom slab. This type of circular ultra-deep shaft is complex, and the bottom slab thickness is affected by a variety of factors, including topographic and geological conditions, groundwater, lateral friction, and geotechnical parameters. Currently, three-dimensional finite element method and seepage analysis are commonly used to calculate the bottom slab thickness of circular ultra-deep shafts. However, this method is computationally complex, time-consuming, and labor-intensive. Summary of the Invention

[0004] In order to solve the problem of the method for determining the bottom plate thickness of a circular ultra-deep vertical shaft described in the background art being computationally complex, time-consuming and labor-intensive, the present invention provides a method and system for calculating the bottom plate thickness of a circular ultra-deep vertical shaft.

[0005] The method of the present invention comprises: For circular ultra-deep vertical shafts, the groundwater level is obtained based on on-site geological survey drilling or monitoring data; Based on the design drawings of the circular ultra-deep shaft, obtain various parameters including the cap beam, ground-connected wall, lining wall, and bottom plate; Based on various parameters of the circular ultra-deep vertical shaft, including the cap beam, ground-connected wall, lining wall, and bottom plate, as well as the groundwater level, the self-weight of the circular ultra-deep vertical shaft, the bottom plate anchoring force, the external friction resistance of the ground-connected wall, the buoyancy of the circular bottom plate, and the buoyancy of the bottom of the circular ground-connected wall are calculated. Taking into account the external friction of the ground-connected wall, the first equation for calculating the anti-floating stability of the bottom plate is established based on the anti-floating safety factor, according to the buoyancy of the circular bottom plate, the bottom plate anchoring force, the buoyancy of the bottom of the circular ground-connected wall, and the deadweight of each part of the circular ultra-deep vertical shaft. The first thickness of the bottom plate is obtained by solving the equation. Without considering the external friction of the ground-connected wall, the second equation for calculating the anti-floating stability of the bottom plate is established based on the anti-floating safety factor, according to the buoyancy of the circular bottom plate, the bottom plate anchoring force, the buoyancy of the bottom of the circular ground-connected wall, and the deadweight of each part of the circular ultra-deep vertical shaft. The second thickness of the bottom plate is obtained by solving the equation. Compare the first bottom plate thickness and the second bottom plate thickness, and take the larger value as the final bottom plate thickness of the circular ultra-deep vertical shaft.

[0006] Furthermore, the solid deadweight of the circular ultra-deep shaft The calculation formula is: (1), (2), (3), (4), (5), (6), (7), (8), (9), in, is the concrete bulk density, is the volume of the crown beam concrete solid, is the concrete volume of the ground-connected wall, is the concrete volume of the lining wall, is the volume of the bottom slab concrete; is the crown beam centerline radius, is the centerline radius of the ground-connected wall, is the centerline radius of the lining wall, is the base plate radius; is the inner diameter of the circular ultra-deep shaft, For the thick crown beam, For the crown beam is high, For the thickness of the ground and wall, Because the ground is connected to the wall, is the thickness of the lining wall, For the lining wall height, is the bottom plate thickness.

[0007] Furthermore, the bottom plate anchoring force of the circular ultra-deep shaft The calculation formula is: (10), in, is the number of anchor bars, It is the pull-out resistance of a single anchor pile.

[0008] Furthermore, the outer friction resistance of the ground-connected wall of the circular ultra-deep shaft The calculation formula is: (11), (12), in, is the characteristic value of lateral resistance, which is determined according to geological conditions; is the area of the outer ring of the ground-connected wall subject to friction resistance, is the centerline radius of the ground-connected wall, For the thickness of the ground and wall, The ground is connected to the wall.

[0009] Furthermore, the buoyancy of the circular bottom plate of the circular ultra-deep shaft is and the buoyancy at the bottom of the circular ground-connected wall The calculation formulas are: (13), (14), in, is the water specific gravity, is the groundwater level, is the bottom elevation of the base plate, is the bottom elevation of the ground-connected wall, is the base plate radius, is the centerline radius of the ground-connected wall, The ground is connected to the wall thickness.

[0010] Furthermore, the first equation for calculating the bottom plate anti-floating stability is: (15), Thus, the first thickness of the bottom plate for: (16), in, It is the anti-floating safety factor taking into account the friction resistance on the outside of the ground-connected wall.

[0011] Furthermore, the second equation for calculating the bottom plate anti-floating stability is: (17), Thus, the second thickness of the bottom plate for: (18), in, It is the anti-floating safety factor without considering the friction resistance on the outside of the ground-connected wall.

[0012] Furthermore, it also includes the thickness of the bottom plate of the final circular ultra-deep shaft. The value of exceeds 5.0m to judge. If it exceeds 5.0m, it is necessary to check whether the parameters of the circular ultra-deep vertical shaft are reasonable, or change the design plan of the circular ultra-deep vertical shaft and recalculate the bottom plate thickness of the circular ultra-deep vertical shaft.

[0013] The present invention proposes a bottom plate thickness calculation system for a circular ultra-deep vertical shaft, comprising a groundwater level acquisition module, a circular ultra-deep vertical shaft structural parameter acquisition module, a circular ultra-deep vertical shaft mechanical parameter calculation module, a bottom plate first thickness solution module, a bottom plate second thickness solution module, and a bottom plate thickness determination module.

[0014] The groundwater level acquisition module is used to acquire the groundwater level of a circular ultra-deep vertical shaft based on on-site geological survey drilling or monitoring data.

[0015] The structural parameter acquisition module of the circular ultra-deep vertical shaft is used to obtain various parameters including the cap beam, ground-connected wall, lining wall and bottom plate according to the design drawings of the circular ultra-deep vertical shaft.

[0016] The mechanical parameter calculation module of the circular ultra-deep vertical shaft is used to calculate the entity deadweight of the circular ultra-deep vertical shaft, the bottom plate anchoring force, the external friction resistance of the ground-connected wall, the buoyancy of the circular bottom plate, and the buoyancy of the bottom of the circular ground-connected wall based on various parameters of the circular ultra-deep vertical shaft including the crown beam, ground-connected wall, lining wall, and bottom plate, as well as the groundwater level.

[0017] The base plate first thickness solving module is used to establish a first equation for calculating the base plate's anti-floating stability, taking into account the frictional resistance on the outside of the ground-connected wall, based on the buoyancy of the circular base plate, the base plate anchoring force, the buoyancy of the bottom of the circular ground-connected wall, and the deadweight of the entities of each part of the circular ultra-deep vertical shaft, and solve it to obtain the first thickness of the base plate.

[0018] The bottom plate second thickness solving module is used to establish a second equation for calculating the bottom plate's anti-floating stability based on the buoyancy of the circular bottom plate, the bottom plate anchoring force, the buoyancy of the bottom of the circular ground-connected wall, and the deadweight of the entities of each part of the circular ultra-deep vertical shaft, without considering the friction resistance on the outside of the ground-connected wall, and solve it to obtain the second thickness of the bottom plate.

[0019] The bottom plate thickness determination module is used to compare the first bottom plate thickness and the second bottom plate thickness, and take the larger value as the final bottom plate thickness of the circular ultra-deep vertical shaft.

[0020] The present invention also proposes a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the above-mentioned method for calculating the bottom plate thickness of a circular ultra-deep vertical shaft.

[0021] Compared with the prior art, the present invention has the following beneficial effects: (1) High reliability of calculation results: Two anti-floating stability calculation equations are established based on the anti-floating coefficient, taking into account and ignoring the influence of the external friction resistance of the ground-connected wall respectively. By comparing the two calculation results, a more conservative bottom plate thickness is selected to ensure the reliability of the calculation results and improve the structural safety; (2) Optimize the structural design of the circular ultra-deep vertical shaft: By reasonably determining the bottom plate thickness, avoid overly conservative design, save material costs, ensure the anti-floating stability of the circular ultra-deep vertical shaft in a high-pressure groundwater environment, and improve the anti-seepage safety and structural durability; (3) Simple and efficient calculation: Compared with the traditional complex three-dimensional finite element and seepage analysis methods, the calculation process of the method of the present invention is simple, and the parameters required for calculation such as groundwater level and structural dimensions are easy to obtain, which can greatly save calculation time and labor costs; (4) Strong engineering applicability: The present invention is applicable to all circular ultra-deep shafts in water conservancy, hydropower, subway, transportation and other projects. It can complement the finite element method and provide more flexible options for engineering design.

[0022] In general, based on the anti-floating safety factor, the present invention provides an efficient, reliable and easy-to-apply engineering method for calculating the thickness of the bottom plate of a circular ultra-deep vertical shaft. It has both theoretical rigor and practical feasibility, and provides a reliable theoretical basis for determining the thickness of the bottom plate of a circular ultra-deep vertical shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Flow chart of the method of the present invention.

[0024] Figure 2 Schematic diagram of the circular ultra-deep vertical shaft structure.

[0025] Figure 3 Schematic diagram for calculating the bottom plate thickness of a circular ultra-deep shaft.

[0026] Figure 4 This is a system architecture diagram of the present invention. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0028] Example 1

[0029] A method for calculating the bottom plate thickness of a circular ultra-deep shaft, the flow chart is as follows Figure 1 As shown in the figure, the schematic diagram of the circular ultra-deep shaft structure is as follows Figure 2 As shown in the figure, the schematic diagram of the calculation of the bottom plate thickness of the circular ultra-deep shaft is as follows Figure 3 The specific steps are as follows.

[0030] like Figure 2 As shown, the maintenance structure of the circular ultra-deep vertical shaft is a circular composite lining structure. The outer layer is a circular reinforced concrete ground-connected wall, and the inner lining is a circular reinforced concrete lining. The inner and outer structures are subjected to force together to form a whole. The structure of the circular ultra-deep vertical shaft mainly includes crown beams, ground-connected walls, inner lining walls, bottom plates, etc.

[0031] For circular ultra-deep shafts, obtain groundwater levels based on on-site geological survey drilling or monitoring data .

[0032] According to the design drawings of the circular ultra-deep vertical shaft, various parameters including the cap beam, ground-connected wall, lining wall and bottom plate are obtained.

[0033] Based on the various parameters of the circular ultra-deep vertical shaft, including the cap beam, ground-connected wall, lining wall, bottom plate, and the groundwater level, the entity's deadweight, bottom plate anchoring force, external friction of the ground-connected wall, buoyancy on the circular bottom plate, and buoyancy on the bottom of the circular ground-connected wall are calculated.

[0034] Specifically, the solid deadweight of the circular ultra-deep shaft The calculation formula is: (1), (2), (3), (4), (5), (6), (7), (8), (9), in, is the concrete bulk density, is the volume of the crown beam concrete solid, is the concrete volume of the ground-connected wall, is the concrete volume of the lining wall, is the volume of the bottom slab concrete; is the crown beam centerline radius, is the centerline radius of the ground-connected wall, is the centerline radius of the lining wall, is the base plate radius; is the inner diameter of the circular ultra-deep shaft, For the thick crown beam, For the crown beam is high, For the thickness of the ground and wall, Because the ground is connected to the wall, is the thickness of the lining wall, For the inner lining wall height, is the bottom plate thickness.

[0035] Bottom plate anchoring force of circular ultra-deep shaft The calculation formula is: (10), in, is the number of anchor bars, The pull-out resistance of a single anchor pile. The anchor reinforcement is a single anchor bar or anchor pile. The number of anchor bars (N) and the anchoring force of each bar are obtained from the design drawings.

[0036] External friction of the ground-connected wall of a circular ultra-deep shaft The calculation formula is: (11), (12), in, The characteristic value of lateral resistance is determined according to geological conditions and is generally 10-15 kPa. is the area of the outer ring of the ground-connected wall subject to friction resistance, is the centerline radius of the ground-connected wall, For the thickness of the ground and wall, The ground is connected to the wall.

[0037] Buoyancy on the circular bottom plate of a circular ultra-deep shaft and the buoyancy at the bottom of the circular ground-connected wall The calculation formulas are: (13), (14), in, is the water specific gravity, is the groundwater level, is the bottom elevation of the base plate, is the bottom elevation of the ground-connected wall, is the base plate radius, is the centerline radius of the ground-connected wall, The ground is connected to the wall thickness.

[0038] Taking into account the external friction of the ground-connected wall, the first equation for calculating the anti-floating stability of the bottom plate is established based on the anti-floating safety factor according to the buoyancy of the circular bottom plate, the anchoring force of the bottom plate, the buoyancy of the bottom of the circular ground-connected wall, and the deadweight of each part of the circular ultra-deep vertical shaft. The equation is then solved to obtain the first thickness of the bottom plate.

[0039] The first equation for calculating the bottom plate's anti-floating stability is: (15), Thus, the first thickness of the bottom plate for: (16), in, In order to consider the anti-floating safety factor when taking into account the friction resistance on the outside of the ground-connected wall, the value is generally taken as 1.10-1.15.

[0040] Without considering the friction resistance on the outside of the ground-connected wall, the second equation for calculating the anti-floating stability of the bottom plate is established based on the anti-floating safety factor, according to the buoyancy of the circular bottom plate, the anchoring force of the bottom plate, the buoyancy of the bottom of the circular ground-connected wall, and the deadweight of each part of the circular ultra-deep vertical shaft. The second thickness of the bottom plate is obtained by solving the equation.

[0041] The second equation for calculating the bottom plate's anti-floating stability is: (17), Thus, the second thickness of the bottom plate for: (18), in, It is the anti-floating safety factor without considering the friction resistance on the outside of the ground-connected wall, and is generally taken as 1.05.

[0042] Compare the first bottom plate thickness and the second bottom plate thickness, and take the larger value as the final bottom plate thickness of the circular ultra-deep vertical shaft.

[0043] That is, the thickness of the bottom plate of the final circular ultra-deep shaft .

[0044] The thickness of the bottom plate of the final circular ultra-deep shaft The value of exceeds 5.0m to judge. If it exceeds 5.0m, it is necessary to check whether the parameters of the circular ultra-deep vertical shaft are reasonable, or change the design plan of the circular ultra-deep vertical shaft and recalculate the bottom plate thickness of the circular ultra-deep vertical shaft.

[0045] Example 2

[0046] A bottom plate thickness calculation system for circular ultra-deep shafts, the architecture diagram is as follows Figure 4 As shown, it consists of a groundwater level acquisition module, a circular ultra-deep shaft structural parameter acquisition module, a circular ultra-deep shaft mechanical parameter calculation module, a bottom plate first thickness solution module, a bottom plate second thickness solution module, and a bottom plate thickness determination module.

[0047] The groundwater level acquisition module is used to obtain the groundwater level of circular ultra-deep vertical shafts based on on-site geological survey drilling or monitoring data.

[0048] The structural parameter acquisition module of the circular ultra-deep vertical shaft is used to obtain various parameters including the cap beam, ground-connected wall, lining wall and bottom plate according to the design drawings of the circular ultra-deep vertical shaft.

[0049] The mechanical parameter calculation module for the circular ultra-deep vertical shaft is used to calculate the self-weight of the circular ultra-deep vertical shaft, the anchoring force of the bottom plate, the external friction resistance of the ground-connected wall, the buoyancy of the circular bottom plate, and the buoyancy of the bottom of the circular ground-connected wall based on various parameters of the circular ultra-deep vertical shaft, including the cap beam, ground-connected wall, lining wall, bottom plate, and the groundwater level.

[0050] The first bottom plate thickness calculation module is used to establish the first equation for calculating the bottom plate's anti-floating stability, taking into account the external friction resistance of the ground-connected wall. This equation is then solved to obtain the first bottom plate thickness based on the buoyancy of the circular bottom plate, the bottom plate anchorage force, the buoyancy of the bottom of the circular ground-connected wall, and the deadweight of the various parts of the circular ultra-deep vertical shaft.

[0051] The second bottom plate thickness calculation module is used to establish the second equation for calculating the bottom plate's anti-floating stability, without considering the external friction resistance of the ground-connected wall. This equation is then solved to obtain the second bottom plate thickness based on the buoyancy of the circular bottom plate, the bottom plate anchorage force, the buoyancy of the bottom of the circular ground-connected wall, and the deadweight of the various parts of the circular ultra-deep vertical shaft.

[0052] The bottom plate thickness determination module is used to compare the first bottom plate thickness and the second bottom plate thickness, and take the larger value as the final bottom plate thickness of the circular ultra-deep vertical shaft.

[0053] The specific implementation of each module in this system is consistent with that described in Example 1 and will not be repeated here.

[0054] Example 3

[0055] A computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the method for calculating the bottom plate thickness of a circular ultra-deep vertical shaft as described in Example 1 and the system for calculating the bottom plate thickness of a circular ultra-deep vertical shaft as described in Example 2 are implemented.

[0056] 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 take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented 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. The solutions in the embodiments of the present application may be implemented in various computer languages, such as object-oriented programming languages Java, C++, Python, and interpreted scripting languages like JavaScript.

[0057] The present application is described with reference to the flowcharts and / or block diagrams of the methods, electronic 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 processor, or other programmable data processing electronic device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing electronic device generate instructions for implementing the steps in the process. 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.

[0058] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing electronic 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 The function specified in one or more boxes.

[0059] These computer program instructions can also be loaded onto a computer or other programmable data processing electronic device so that a series of operating steps are executed on the computer or other programmable electronic device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable electronic device to implement the process. Figure 1 a process or multiple processes and / or boxes Figure 1A step that specifies a function in one or more boxes.

[0060] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0061] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A method for calculating the bottom plate thickness of a circular ultra-deep shaft, characterized in that: include: For circular ultra-deep vertical shafts, the groundwater level is obtained based on on-site geological survey drilling or monitoring data; Based on the design drawings of the circular ultra-deep shaft, obtain various parameters including the cap beam, ground-connected wall, lining wall, and bottom plate; Based on various parameters of the circular ultra-deep vertical shaft, including the cap beam, ground-connected wall, lining wall, and bottom plate, as well as the groundwater level, the self-weight of the circular ultra-deep vertical shaft, the bottom plate anchoring force, the external friction resistance of the ground-connected wall, the buoyancy of the circular bottom plate, and the buoyancy of the bottom of the circular ground-connected wall are calculated. Taking into account the external friction of the ground-connected wall, the first equation for calculating the anti-floating stability of the bottom plate is established based on the anti-floating safety factor, according to the buoyancy of the circular bottom plate, the bottom plate anchoring force, the buoyancy of the bottom of the circular ground-connected wall, and the deadweight of each part of the circular ultra-deep vertical shaft. The first thickness of the bottom plate is obtained by solving the equation. Without considering the external friction of the ground-connected wall, the second equation for calculating the anti-floating stability of the bottom plate is established based on the anti-floating safety factor, according to the buoyancy of the circular bottom plate, the bottom plate anchoring force, the buoyancy of the bottom of the circular ground-connected wall, and the deadweight of each part of the circular ultra-deep vertical shaft. The second thickness of the bottom plate is obtained by solving the equation. Compare the first bottom plate thickness and the second bottom plate thickness, and take the larger value as the final bottom plate thickness of the circular ultra-deep vertical shaft.

2. The method for calculating the bottom plate thickness of a circular ultra-deep vertical shaft according to claim 1, characterized in that: The solid deadweight of the circular ultra-deep shaft The calculation formula is: ， ， ， ， ， ， ， ， ， in, is the concrete bulk density, is the volume of the crown beam concrete solid, is the concrete volume of the ground-connected wall, is the concrete volume of the lining wall, is the volume of the bottom slab concrete; is the crown beam centerline radius, is the centerline radius of the ground-connected wall, is the centerline radius of the lining wall, is the base plate radius; is the inner diameter of the circular ultra-deep shaft, For the thick crown beam, For the crown beam is high, For the thickness of the ground and wall, Because the ground is connected to the wall, is the thickness of the lining wall, For the lining wall height, is the bottom plate thickness.

3. The method for calculating the bottom plate thickness of a circular ultra-deep shaft according to claim 2, characterized in that: Bottom plate anchoring force of the circular ultra-deep shaft The calculation formula is: ， in, is the number of anchor bars, It is the pull-out resistance of a single anchor pile.

4. The method for calculating the bottom plate thickness of a circular ultra-deep vertical shaft according to claim 3, characterized in that: The outer friction resistance of the ground-connected wall of the circular ultra-deep vertical shaft The calculation formula is: ， ， in, is the characteristic value of lateral resistance, which is determined according to geological conditions; is the area of the outer ring of the ground-connected wall subject to friction resistance, is the centerline radius of the ground-connected wall, For the thickness of the ground and wall, The ground is connected to the wall.

5. The method for calculating the bottom plate thickness of a circular ultra-deep vertical shaft according to claim 4, characterized in that: The buoyancy of the circular bottom plate of the circular ultra-deep vertical shaft and the buoyancy at the bottom of the circular ground-connected wall The calculation formulas are: ， ， in, is the water specific gravity, is the groundwater level, is the bottom elevation of the base plate, is the bottom elevation of the ground-connected wall, is the base plate radius, is the centerline radius of the ground-connected wall, The ground is connected to the wall thickness.

6. The method for calculating the bottom plate thickness of a circular ultra-deep vertical shaft according to claim 5, characterized in that: The first equation for calculating the bottom plate anti-floating stability is: ， Thus, the first thickness of the bottom plate for: ， in, It is the anti-floating safety factor taking into account the friction resistance on the outside of the ground-connected wall.

7. The method for calculating the bottom plate thickness of a circular ultra-deep vertical shaft according to claim 6, characterized in that: The second equation for calculating the bottom plate anti-floating stability is: ， Thus, the second thickness of the bottom plate for: ， in, It is the anti-floating safety factor without considering the friction resistance on the outside of the ground-connected wall.

8. The method for calculating the bottom plate thickness of a circular ultra-deep vertical shaft according to claim 7, characterized in that: Also includes the thickness of the bottom plate of the final circular ultra-deep shaft The value of exceeds 5.0m to judge. If it exceeds 5.0m, it is necessary to check whether the parameters of the circular ultra-deep vertical shaft are reasonable, or change the design plan of the circular ultra-deep vertical shaft and recalculate the bottom plate thickness of the circular ultra-deep vertical shaft.

9. A system for calculating the bottom plate thickness of a circular ultra-deep shaft implementing the method according to any one of claims 1 to 8, characterized in that: It includes a groundwater level acquisition module, a circular ultra-deep shaft structural parameter acquisition module, a circular ultra-deep shaft mechanical parameter calculation module, a bottom plate first thickness solution module, a bottom plate second thickness solution module, and a bottom plate thickness determination module; The groundwater level acquisition module is used to obtain the groundwater level for a circular ultra-deep vertical shaft based on on-site geological survey drilling or monitoring data; The structural parameter acquisition module of the circular ultra-deep vertical shaft is used to obtain various parameters including the cap beam, ground-connected wall, lining wall, and bottom plate according to the design drawings of the circular ultra-deep vertical shaft; The mechanical parameter calculation module of the circular ultra-deep vertical shaft is used to calculate the self-weight of the circular ultra-deep vertical shaft, the anchoring force of the bottom plate, the external friction resistance of the ground-connected wall, the buoyancy of the circular bottom plate, and the buoyancy of the bottom of the circular ground-connected wall based on various parameters of the circular ultra-deep vertical shaft, including the cap beam, ground-connected wall, lining wall, and bottom plate, as well as the groundwater level; The bottom plate first thickness solving module is used to establish a first bottom plate anti-floating stability calculation equation based on the buoyancy of the circular bottom plate, the bottom plate anchoring force, the buoyancy of the bottom of the circular ground-connected wall, and the deadweight of each part of the circular ultra-deep vertical shaft, taking into account the external friction of the ground-connected wall, and solve it to obtain the first bottom plate thickness; The bottom plate second thickness calculation module is used to establish a second equation for calculating the bottom plate's anti-floating stability based on the buoyancy of the circular bottom plate, the bottom plate anchoring force, the buoyancy of the bottom of the circular ground-connected wall, and the deadweight of each part of the circular ultra-deep vertical shaft, without considering the external friction of the ground-connected wall, and solve it to obtain the second thickness of the bottom plate; The bottom plate thickness determination module is used to compare the first bottom plate thickness and the second bottom plate thickness, and take the larger value as the final bottom plate thickness of the circular ultra-deep vertical shaft.

10. A computer-readable storage medium storing a computer program, wherein: When the computer program is executed by a processor, the method for calculating the bottom plate thickness of a circular ultra-deep shaft according to any one of claims 1 to 8 is implemented.

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