Method and device for calculating water pressure reduction coefficient of mountain tunnel lining

Abstract

The invention provides a calculation method and device for a mountain tunnel lining water pressure reduction coefficient, and relates to the technical field of tunnel engineering design and construction.The method comprises the steps that mountain tunnel construction engineering data are obtained; acquiring the underground water level height and the stratum permeability coefficient from the mountain tunnel construction engineering data; determining the water discharge amount and the water seepage amount through hydrogeological survey and on-site construction monitoring; determining the tunnel drainage rate according to the drainage amount and the water seepage amount; and determining a tunnel lining water pressure reduction coefficient under the influence of the multi-dimensional elements according to the underground water level height, the stratum permeability coefficient and the tunnel drainage rate. According to the method, multiple factors including the underground water level height, the stratum permeability coefficient and the tunnel drainage rate are combined, calculation of the tunnel lining water pressure reduction coefficient is achieved, calculation of the tunnel lining water pressure is guided, extremely high popularization and economic value are achieved, and powerful data support is provided for tunnel construction.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel engineering design and construction, and in particular to a method and device for calculating a water pressure reduction coefficient of a mountain tunnel lining. Background Art

[0002] This section is intended to provide a background or context for embodiments of the present invention. No description herein is admitted to be prior art by virtue of its inclusion in this section.

[0003] There is little attention and research on tunnel waterproofing and drainage in tunnel engineering. The concept of waterproofing and drainage treatment has mainly gone through three stages: full drainage, full blocking, and the current main push of water blocking and limited drainage. The full-package anti-seepage drainage mode of full blocking and no drainage and the currently widely used semi-package drainage mode of mainly blocking and limited discharge are gradually being used. The full-package treatment can reduce the loss of groundwater resources and prevent the water level from dropping, but it will increase the water pressure behind the lining, which will increase the technical difficulty and economic cost for water-rich mountain tunnels.

[0004] With the rapid increase in tunnel mileage and the continuous enrichment of engineering experience, the handling of groundwater problems has become more reasonable. When tunnels pass through mountainous areas with abundant groundwater resources and high groundwater pressure, it is critical to ensure that the lining remains stable and safe under high water pressure during operation. When the tunnel takes drainage measures, it will affect the original underground seepage path, forming new seepage field distribution characteristics, which determines the form and size of the tunnel water pressure. For tunnels in high-pressure water-rich areas, water pressure is one of the main loads of the tunnel lining structure.

[0005] At present, the lining water pressure is given great attention in the specifications of tunnels and hydraulic tunnels. The main calculation methods for the water pressure on the lining are: reduction coefficient method, theoretical analysis method, numerical simulation method and model experiment method. The reduction coefficient method is simple and practical, but the value of the reduction coefficient includes the designer's professional experience and is subjective. There is no effective technical solution for the analysis and processing of the reduction coefficient and the value method.

[0006] In summary, there is an urgent need for a technical solution that can overcome the above-mentioned defects, conduct a reasonable analysis of the reduction factor, and determine the reduction factor by integrating the multi-dimensional factors of the tunnel construction project. Summary of the invention

[0007] In order to solve the problems existing in the prior art, the present invention proposes a method and device for calculating the reduction coefficient of the lining water pressure of a mountain tunnel. The present invention comprehensively considers the factors affecting the tunnel lining water pressure, statistically analyzes the factors affecting the tunnel lining water pressure, and analyzes the impact of drainage rate multi-dimensional factors including groundwater level height, stratum permeability coefficient, and the ratio of drainage volume to primary branch seepage volume on the tunnel lining water pressure, and fits a calculation method for the tunnel lining water pressure reduction coefficient under the influence of multi-dimensional factors, which can realize the calculation of the water pressure reduction coefficient of the composite lining tunnel, and then calculate the water pressure of the composite lining tunnel, providing guidance for the lining structure design.

[0008] In a first aspect of an embodiment of the present invention, a method for calculating a mountain tunnel lining water pressure reduction coefficient is proposed, comprising:

[0009] Obtain mountain tunnel construction project data;

[0010] Obtaining the groundwater level and the ground permeability coefficient from the mountain tunnel construction engineering data;

[0011] Determine the drainage and seepage volume through hydrogeological surveys and on-site construction monitoring;

[0012] Determine the tunnel drainage rate based on the drainage volume and water seepage volume;

[0013] The tunnel lining water pressure reduction coefficient under the influence of multi-dimensional factors is determined according to the groundwater level, stratum permeability coefficient and tunnel drainage rate.

[0014] In a second aspect of an embodiment of the present invention, a device for calculating a mountain tunnel lining water pressure reduction coefficient is provided, comprising:

[0015] Data acquisition module, used to obtain mountain tunnel construction project data;

[0016] A data analysis module, used to obtain the groundwater level and the stratum permeability coefficient from the mountain tunnel construction engineering data;

[0017] The drainage and seepage determination module is used to determine the drainage and seepage through hydrogeological surveys and on-site construction monitoring;

[0018] A drainage rate processing module, used to determine the tunnel drainage rate according to the drainage volume and the seepage volume;

[0019] The reduction coefficient processing module is used to determine the tunnel lining water pressure reduction coefficient under the influence of multi-dimensional factors according to the groundwater level, stratum permeability and tunnel drainage rate.

[0020] In a third aspect of an embodiment of the present invention, a computer device is proposed, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements a method for calculating a mountain tunnel lining water pressure reduction coefficient when executing the computer program.

[0021] In a fourth aspect of an embodiment of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, a method for calculating a mountain tunnel lining water pressure reduction coefficient is implemented.

[0022] In a fifth aspect of an embodiment of the present invention, a computer program product is proposed. The computer program product includes a computer program. When the computer program is executed by a processor, a method for calculating a mountain tunnel lining water pressure reduction coefficient is implemented.

[0023] The method and device for calculating the mountain tunnel lining water pressure reduction coefficient proposed in the present invention obtain mountain tunnel construction engineering data; obtain groundwater level and stratum permeability coefficient from the mountain tunnel construction engineering data; determine the drainage volume and seepage volume through hydrogeological survey and on-site construction monitoring; determine the tunnel drainage rate according to the drainage volume and seepage volume; determine the tunnel lining water pressure reduction coefficient under the influence of multi-dimensional factors according to the groundwater level, stratum permeability coefficient and tunnel drainage rate. The overall scheme analyzes the main influencing factors of lining water pressure through theoretical derivation and numerical simulation, and sorts out the distribution characteristics of the mountain tunnel seepage field according to the seepage path analysis of groundwater, and obtains a method for determining the mountain tunnel lining water pressure reduction coefficient under the influence of multiple factors, so as to guide the design of the lining structure and provide strong data support for tunnel construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a flow chart of a method for calculating a mountain tunnel lining water pressure reduction coefficient according to an embodiment of the present invention.

[0026] Figure 2 It is a schematic diagram of statistical results of water pressure influencing factors according to an embodiment of the present invention.

[0027] Figure 3 It is a schematic diagram of a calculation model according to an embodiment of the present invention.

[0028] Figure 4It is a schematic diagram of a lining cross section according to an embodiment of the present invention.

[0029] Figure 5 It is a schematic diagram of the architecture of a calculation device for a mountain tunnel lining water pressure reduction coefficient according to an embodiment of the present invention.

[0030] Figure 6 It is a schematic diagram of the structure of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The principles and spirit of the present invention will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are provided only to enable those skilled in the art to better understand and implement the present invention, and are not intended to limit the scope of the present invention in any way. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0032] Those skilled in the art will appreciate that the embodiments of the present invention may be implemented as a system, device, apparatus, method or computer program product. Therefore, the present disclosure may be specifically implemented in the following forms, namely: complete hardware, complete software (including firmware, resident software, microcode, etc.), or a combination of hardware and software.

[0033] According to the implementation mode of the present invention, a method and device for calculating the water pressure reduction coefficient of the lining of a mountain tunnel are proposed, which relates to the technical field of tunnel engineering design and construction. The present invention analyzes the main influencing factors of lining water pressure by means of theoretical derivation and numerical simulation, and sorts out the distribution characteristics of the seepage field of the water-rich mountain tunnel based on the seepage path analysis of groundwater. Through mathematical regression, the calculation formula of the water pressure reduction coefficient of the lining of the water-rich mountain tunnel under the influence of multiple factors is obtained, which guides the design of the lining structure and has broad application prospects.

[0034] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0035] Figure 1 FIG. 1 is a flow chart of a method for calculating a mountain tunnel lining water pressure reduction coefficient according to an embodiment of the present invention. Figure 1 As shown, the method includes:

[0036] S101, obtaining mountain tunnel construction engineering data;

[0037] S102, obtaining the groundwater level and the stratum permeability coefficient from the mountain tunnel construction engineering data;

[0038] S103, determine the drainage and seepage volume through hydrogeological survey and on-site construction monitoring;

[0039] S104, determining the tunnel drainage rate according to the drainage volume and the water seepage volume;

[0040] S105, determining a tunnel lining water pressure reduction coefficient under the influence of multi-dimensional factors according to the groundwater level, stratum permeability coefficient and tunnel drainage rate.

[0041] The calculation method of the mountain tunnel lining water pressure reduction coefficient of the present invention combines multiple factors including groundwater level, stratum permeability, and tunnel drainage rate to realize the calculation of the tunnel lining water pressure reduction coefficient, guide the calculation of tunnel lining water pressure, has strong promotion and economic value, and provides strong data support for tunnel construction.

[0042] In order to explain more clearly the calculation method of the above-mentioned mountain tunnel lining water pressure reduction coefficient, each step is explained in detail below.

[0043] For mountain tunnel projects, geological exploration work is carried out before the tunnel project begins, and the groundwater level and physical characteristics of the strata are determined through drilling sampling and mountain tunnel construction project data;

[0044] The formation permeability coefficient is determined based on the physical properties of the formation.

[0045] In one embodiment, for S104, determining the tunnel drainage rate according to the drainage volume and the seepage volume includes:

[0046] The tunnel drainage rate is determined using the following calculation relationship:

[0047] n Q =Q1 / Q2;

[0048] Where n Q It represents the tunnel drainage rate; Q1 represents the drainage volume, which is set through on-site monitoring or when designing the drainage system; Q2 represents the infiltration volume, which is the amount of groundwater entering the tunnel through the primary branch of the tunnel.

[0049] For example, if the tunnel drainage is 1000m 3 / day, the groundwater infiltration in the primary branch is 2000m 3 / day, then the tunnel drainage rate is: n Q =1000 / 2000=50%.

[0050] In one embodiment, for S105, the tunnel lining water pressure reduction coefficient under the influence of multi-dimensional factors is determined according to the groundwater level, the stratum permeability coefficient and the tunnel drainage rate, including:

[0051] The following calculation relationship is used to determine the tunnel lining water pressure reduction factor under the influence of multi-dimensional factors:

[0052]

[0053] Where β represents the tunnel lining water pressure reduction coefficient under the influence of multi-dimensional factors, is the lining water pressure reduction coefficient at the arch; H represents the groundwater level; K represents the stratum permeability coefficient; n Q Indicates the tunnel drainage rate.

[0054] Through theoretical derivation and numerical simulation, the main influencing factors of lining water pressure were analyzed. The distribution characteristics of the seepage field of water-rich mountain tunnels were sorted out based on the seepage path analysis of groundwater. Through mathematical regression, the calculation formula for the lining water pressure reduction coefficient of water-rich mountain tunnels under the influence of multiple factors was obtained to guide the design of lining structures.

[0055] It should be noted that, although the operations of the method of the present invention are described in a specific order in the above embodiments and the accompanying drawings, this does not require or imply that the operations must be performed in the specific order, or that all the operations shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps.

[0056] In actual application scenarios, the concept of drainage and water prevention in high-pressure mountain tunnels has gradually changed from "full discharge" and "full blocking" to "blocking as the main method, with limited discharge". Under different drainage and water prevention modes, the effect of groundwater on support and the distribution of lining water pressure are different. The current specifications for the concept of "water blocking and limited drainage" include two meanings: active water blocking and controlled drainage. "Water blocking" mainly involves filling pores and cracks with grouting to block seepage channels to reduce the permeability of the formation. "Drainage" means discharging part of the groundwater out of the cave by setting a drainage pipeline on the inner side of the primary support, so that the lining water pressure is reduced to a certain extent. The two jointly affect the size of the lining water pressure. The factors affecting water pressure were extracted from 25 research papers on external lining water pressure. The statistical results are as follows: Figure 2 Reference Figure 2 , is a schematic diagram of statistical results of water pressure influencing factors according to an embodiment of the present invention.

[0057] Among the factors affecting lining water pressure, the top five factors in terms of adoption rate from high to low are: grouting ring permeability coefficient Kg (76%), grouting ring outer diameter Rg (72%), limited discharge volume Q (68%), groundwater level height H (44%) and drainage system form (44%). The adoption rates of the remaining factors are all below 40%, among which the adoption rate of tunnel drainage structure form is 36%, the adoption rates of primary support permeability coefficient Kc and primary support outer diameter Rc are both 28%, and the adoption rate of surrounding rock permeability coefficient Kr is 8%.

[0058] It can be seen that the factors affecting lining water pressure can be divided into three categories: groundwater level, stratum permeability, and tunnel drainage rate n. Q (Ratio of drainage to primary infiltration).

[0059] To build a computational model, refer to Figure 3 and Figure 4 As shown in the figure, a variety of different working conditions of the three elements of groundwater level, stratum permeability coefficient and tunnel drainage rate are set. Through model calculation, the lining water pressure under the influence of a single factor change can be obtained and the calculation formula of the corresponding reduction coefficient can be fitted. Figure 3 In the calculation model, the 490m×300m×36m bottom layer is simulated. Figure 4 The diagram shows the relationship between the initial support, secondary lining, waterproof layer, annular drainage blind pipe, and lateral drainage outlet.

[0060] According to the calculation results of the water pressure reduction coefficient obtained under various working conditions, mathematical fitting was performed to obtain the following calculation formula for the water pressure reduction coefficient of the research section under the influence of three factors:

[0061]

[0062] Where β represents the tunnel lining water pressure reduction coefficient under the influence of multi-dimensional factors, is the lining water pressure reduction coefficient at the arch; H represents the groundwater level (m); K represents the stratum permeability (m / s); n Q Indicates the tunnel drainage rate (%).

[0063] In actual application scenarios, there are many ways to obtain the groundwater level and the permeability coefficient of the formation. For example, before the tunnel project starts, geological exploration is carried out to determine the height of the groundwater level and the physical characteristics of the formation through drilling and sampling; the exploration report will provide the elevation of the groundwater level and the permeability characteristics of the formation.

[0064] Hydrogeological surveys are used to understand groundwater recharge, runoff and discharge conditions, and to infer groundwater level and formation permeability. Surveys may include long-term monitoring of groundwater levels and measurements of groundwater flow direction and velocity.

[0065] Laboratory testing: Geotechnical samples obtained from exploration are subjected to permeability tests in the laboratory to determine the permeability coefficient of the formation. Laboratory testing methods include permeability tests, triaxial tests, etc.

[0066] Field tests, such as field permeability tests, such as water injection tests and pumping tests, can provide direct data on groundwater levels and permeability coefficients. Tests can be conducted in boreholes to measure the response of the formation to water flow by controlling the flow of water.

[0067] By using numerical simulation software, combined with geological models and hydrogeological data, groundwater flow can be simulated and formation permeability coefficient can be calculated, providing dynamic groundwater level and permeability coefficient distribution.

[0068] Reference to historical hydrogeological data and literature can provide historical data on regional groundwater levels and formation permeability, which is essential for predicting current and future groundwater conditions.

[0069] For drainage and seepage, the specific methods of obtaining them include at least:

[0070] On-site monitoring: During tunnel construction and operation, drainage and seepage can be directly measured by installing monitoring equipment such as flow meters and water level meters; the monitoring equipment can provide real-time data to help engineers evaluate the drainage and seepage conditions of the tunnel.

[0071] The amount of seepage can be estimated by understanding the groundwater recharge, runoff and discharge conditions in the tunnel area through a hydrogeological survey. The survey may include long-term monitoring of groundwater levels and measurements of groundwater flow direction and velocity.

[0072] Conducting permeability tests on rock and soil samples around the tunnel can determine the permeability coefficient of the stratum and estimate the amount of water seepage. Laboratory testing methods include permeability tests, triaxial tests, etc.

[0073] In situ permeability tests, such as injection tests and pumping tests, can provide direct data on groundwater levels and permeability coefficients, and thus estimate water infiltration. Tests can be conducted in boreholes to measure the response of the formation to water flow by controlling the flow of water.

[0074] By using numerical simulation software, combined with geological models and hydrogeological data, groundwater flow can be simulated and seepage can be calculated, providing dynamic seepage field distribution and seepage volume.

[0075] Design drainage system, according to the drainage system in tunnel design (such as drainage ditch, drainage hole, drainage pipe, etc.), the design drainage volume can be estimated. The design drainage volume is usually based on the groundwater conditions under the most unfavorable circumstances.

[0076] Through water balance analysis, the amount of infiltration can be estimated by considering factors such as rainfall, surface runoff, and groundwater recharge. Water balance analysis can help understand the hydrological cycle and infiltration processes.

[0077] The calculation method of the mountain tunnel lining water pressure reduction coefficient proposed in the present invention realizes the calculation of the tunnel lining water pressure reduction coefficient taking into account the three factors of groundwater level height, stratum permeability coefficient and tunnel drainage rate, guides the calculation of tunnel lining water pressure, and has strong promotion and economic value.

[0078] The present invention is applicable to tunnel projects in water-rich environments. The overall scheme comprehensively considers the factors affecting the water pressure of the tunnel lining, performs statistics on the influencing factors, and determines the main influencing factors of the water pressure of the tunnel lining; and analyzes the impact of the three factors of groundwater level, stratum permeability coefficient, and the ratio of drainage volume to primary branch seepage volume - drainage rate on the water pressure of the tunnel lining, and fits the calculation formula of the reduction coefficient of the water pressure of the tunnel lining under the influence of the three factors. Through the present invention, the calculation of the water pressure reduction coefficient of the composite lining tunnel can be realized, and then the water pressure of the composite lining tunnel can be calculated, providing guidance for the design of the lining structure.

[0079] After introducing the method of the exemplary embodiment of the present invention, next, refer to Figure 5 A device for calculating a mountain tunnel lining water pressure reduction coefficient according to an exemplary embodiment of the present invention is introduced.

[0080] The implementation of the calculation device of the mountain tunnel lining water pressure reduction coefficient can refer to the implementation of the above method, and the repeated parts will not be repeated. The term "module" or "unit" used below can be a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0081] Based on the same inventive concept, the present invention also proposes a device for calculating the water pressure reduction coefficient of a mountain tunnel lining, such as Figure 5 As shown, the device comprises:

[0082] The data acquisition module 510 is used to acquire the mountain tunnel construction project data;

[0083] The data analysis module 520 is used to obtain the groundwater level and the stratum permeability coefficient from the mountain tunnel construction engineering data;

[0084] The drainage and seepage determination module 530 is used to determine the drainage and seepage through hydrogeological surveys and on-site construction monitoring;

[0085] A drainage rate processing module 540, used to determine the tunnel drainage rate according to the drainage volume and the seepage volume;

[0086] The reduction coefficient processing module 550 is used to determine the tunnel lining water pressure reduction coefficient under the influence of multi-dimensional factors according to the groundwater level, the stratum permeability coefficient and the tunnel drainage rate.

[0087] In one embodiment, the data analysis module 520 is specifically used for:

[0088] For mountain tunnel projects, geological exploration work is carried out before the tunnel project begins, and the groundwater level and physical characteristics of the strata are determined through drilling sampling and mountain tunnel construction project data;

[0089] The formation permeability coefficient is determined based on the physical properties of the formation.

[0090] In one embodiment, the drainage rate processing module 540 is specifically used to:

[0091] The tunnel drainage rate is determined using the following calculation relationship:

[0092] n Q =Q1 / Q2;

[0093] Where n Q It represents the tunnel drainage rate; Q1 represents the drainage volume, which is set through on-site monitoring or when designing the drainage system; Q2 represents the infiltration volume, which is the amount of groundwater entering the tunnel through the primary branch of the tunnel.

[0094] In one embodiment, the reduction coefficient processing module 550 is specifically used to:

[0095] The following calculation relationship is used to determine the tunnel lining water pressure reduction factor under the influence of multi-dimensional factors:

[0096]

[0097] Where β represents the tunnel lining water pressure reduction coefficient under the influence of multi-dimensional factors, is the lining water pressure reduction coefficient at the arch; H represents the groundwater level; K represents the stratum permeability coefficient; n Q Indicates the tunnel drainage rate.

[0098] It should be noted that, although several modules of the calculation device for the mountain tunnel lining water pressure reduction coefficient are mentioned in the above detailed description, such division is only exemplary and not mandatory. In fact, according to an embodiment of the present invention, the features and functions of two or more modules described above can be embodied in one module. Conversely, the features and functions of one module described above can be further divided into multiple modules for embodiment.

[0099] Based on the above invention concept, Figure 6 As shown, the present invention also proposes a computer device 600, including a memory 610, a processor 620, and a computer program 630 stored in the memory 610 and executable on the processor 620, wherein the processor 620 implements the aforementioned method for calculating the mountain tunnel lining water pressure reduction coefficient when executing the computer program 630.

[0100] Based on the aforementioned inventive concept, the present invention proposes a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the calculation method of the aforementioned mountain tunnel lining water pressure reduction coefficient is implemented.

[0101] Based on the aforementioned inventive concept, the present invention proposes a computer program product, which includes a computer program, and when the computer program is executed by a processor, a method for calculating a mountain tunnel lining water pressure reduction coefficient is implemented.

[0102] The method and device for calculating the mountain tunnel lining water pressure reduction coefficient proposed in the present invention obtain mountain tunnel construction engineering data; obtain groundwater level and stratum permeability coefficient from the mountain tunnel construction engineering data; determine the drainage volume and seepage volume through hydrogeological survey and on-site construction monitoring; determine the tunnel drainage rate according to the drainage volume and seepage volume; determine the tunnel lining water pressure reduction coefficient under the influence of multi-dimensional factors according to the groundwater level, stratum permeability coefficient and tunnel drainage rate. The overall scheme analyzes the main influencing factors of lining water pressure through theoretical derivation and numerical simulation, and sorts out the distribution characteristics of the mountain tunnel seepage field according to the seepage path analysis of groundwater, and obtains a method for determining the mountain tunnel lining water pressure reduction coefficient under the influence of multiple factors, so as to guide the design of the lining structure and provide strong data support for tunnel construction.

[0103] The acquisition, storage, use, and processing of data in the technical solution of this application comply with the relevant provisions of laws and regulations.

[0104] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, 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 disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0105] The present invention is described with reference to flowcharts and / or block diagrams of methods and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks 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 device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1A device that provides the functions specified in a block or multiple blocks.

[0106] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0107] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0108] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method for calculating the water pressure reduction coefficient of mountain tunnel lining, characterized in that: include: Obtain mountain tunnel construction project data; Obtaining the groundwater level and the ground permeability coefficient from the mountain tunnel construction engineering data; Determine the drainage and seepage volume through hydrogeological surveys and on-site construction monitoring; Determine the tunnel drainage rate based on the drainage volume and water seepage volume; The tunnel lining water pressure reduction coefficient under the influence of multi-dimensional factors is determined according to the groundwater level, stratum permeability coefficient and tunnel drainage rate.

2. The method for calculating the mountain tunnel lining water pressure reduction coefficient according to claim 1 is characterized in that: The method includes: For mountain tunnel projects, geological exploration work is carried out before the tunnel project begins, and the groundwater level and physical characteristics of the strata are determined through drilling sampling and mountain tunnel construction project data; The formation permeability coefficient is determined based on the physical properties of the formation.

3. The method for calculating the mountain tunnel lining water pressure reduction coefficient according to claim 1 is characterized in that: The tunnel drainage rate is determined based on the drainage volume and the seepage volume, including: The tunnel drainage rate is determined using the following calculation relationship: n Q =Q1 / Q2; Where n Q It represents the tunnel drainage rate; Q1 represents the drainage volume, which is set through on-site monitoring or when designing the drainage system; Q2 represents the infiltration volume, which is the amount of groundwater entering the tunnel through the primary branch of the tunnel.

4. The method for calculating the mountain tunnel lining water pressure reduction coefficient according to claim 1 is characterized in that: The tunnel lining water pressure reduction coefficient under the influence of multi-dimensional factors is determined according to the groundwater level, stratum permeability coefficient and tunnel drainage rate, including: The following calculation relationship is used to determine the tunnel lining water pressure reduction factor under the influence of multi-dimensional factors: Where β represents the tunnel lining water pressure reduction coefficient under the influence of multi-dimensional factors, is the lining water pressure reduction coefficient at the arch; H represents the groundwater level; K represents the stratum permeability coefficient; n Q Indicates the tunnel drainage rate.

5. A device for calculating the water pressure reduction coefficient of a mountain tunnel lining, characterized in that: include: Data acquisition module, used to obtain mountain tunnel construction project data; A data analysis module, used to obtain the groundwater level and the stratum permeability coefficient from the mountain tunnel construction engineering data; The drainage and seepage determination module is used to determine the drainage and seepage through hydrogeological surveys and on-site construction monitoring; A drainage rate processing module, used to determine the tunnel drainage rate according to the drainage volume and the seepage volume; The reduction coefficient processing module is used to determine the tunnel lining water pressure reduction coefficient under the influence of multi-dimensional factors according to the groundwater level, stratum permeability and tunnel drainage rate.

6. The device for calculating the reduction coefficient of water pressure in mountain tunnel lining according to claim 5, characterized in that: The data analysis module is specifically used for: For mountain tunnel projects, geological exploration work is carried out before the tunnel project begins, and the groundwater level and physical characteristics of the strata are determined through drilling sampling and mountain tunnel construction project data; The formation permeability coefficient is determined based on the physical properties of the formation.

7. The device for calculating the reduction coefficient of water pressure of mountain tunnel lining according to claim 5, characterized in that: The drainage rate processing module is specifically used for: The tunnel drainage rate is determined using the following calculation relationship: n Q =Q1 / Q2; Where n Q It represents the tunnel drainage rate; Q1 represents the drainage volume, which is set through on-site monitoring or when designing the drainage system; Q2 represents the infiltration volume, which is the amount of groundwater entering the tunnel through the primary branch of the tunnel.

8. The device for calculating the reduction coefficient of water pressure in mountain tunnel lining according to claim 5, characterized in that: The reduction coefficient processing module is specifically used for: The following calculation relationship is used to determine the tunnel lining water pressure reduction factor under the influence of multi-dimensional factors: Where β represents the tunnel lining water pressure reduction coefficient under the influence of multi-dimensional factors, is the lining water pressure reduction coefficient at the arch; H represents the groundwater level; K represents the stratum permeability coefficient; n Q Indicates the tunnel drainage rate.

9. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 4 is implemented.

10. 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 method according to any one of claims 1 to 4 is implemented.

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