A method and system for constructing an underground tunnel

Abstract

The present invention relates to a method and system for constructing an underground tunnel, and relates to the field of underground tunnel construction, including: performing geological stability impact analysis according to the optimal water-blocking barrier layout distribution to obtain a first geological stability distribution, performing tunnel construction simulation to obtain first construction time information, and correcting the first construction time information according to the water-blocking barrier construction time to obtain first corrected construction time information; calculating the first tunnel construction score according to the first corrected construction time information, the first geological stability distribution and the maximum water-blocking score, and continuing to optimize the tunnel route planning to obtain the optimal tunnel route. This application can solve the technical problem that the traditional method lacks an accurate assessment of groundwater influencing factors, resulting in the inability of tunnel route planning to accurately avoid groundwater high-risk areas, affecting the construction progress and construction safety; it can improve the scientificity and accuracy of tunnel route setting, and ensure the construction progress and construction safety.

Description

Technical Field

[0001] The present invention relates to the field of underground tunnel construction, and in particular to a construction method and system for an underground tunnel. Background Art

[0002] With the acceleration of urbanization, the development of underground space has become an important means to ease the pressure of ground traffic and expand urban functions, and the construction of underground tunnels has also received increasing attention. Underground tunnel construction refers to the process of digging passages in underground rocks or soil layers through a series of engineering technologies and methods. These tunnels can be used for a variety of purposes, including transportation (such as subways and highway tunnels), power transmission, communication lines, etc.

[0003] The planning and construction of underground tunnels is a complex and high-risk engineering activity, especially in areas with abundant groundwater or complex geological conditions. Construction is often affected by groundwater. At present, the existing construction methods lack accurate assessment of groundwater influencing factors, resulting in the inability of tunnel route planning to accurately avoid high-risk groundwater areas, thus affecting the overall construction progress and construction safety of the tunnel. Summary of the invention

[0004] The present invention aims to solve the technical problem that traditional underground tunnel construction methods lack accurate assessment of groundwater influencing factors, resulting in the inability of tunnel route planning to accurately avoid groundwater high-risk areas, thus affecting construction progress and construction safety. An underground tunnel construction method and system are provided to solve the problem.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] In a first aspect, the present invention provides a method for constructing an underground tunnel, comprising: acquiring a construction area for tunnel construction, planning and acquiring a first tunnel route in the tunnel construction area, conducting geological exploration on the first tunnel route, and obtaining a first tunnel geological data distribution; optimizing the layout of water barriers according to the first tunnel geological data distribution, and obtaining an optimal water barrier layout distribution corresponding to a maximum water-blocking score, wherein the optimal water barrier layout distribution includes a plurality of optimal layout positions; performing a geological stability impact analysis on the first tunnel geological data distribution according to the optimal water barrier layout distribution, and obtaining a first geological stability distribution, performing tunnel construction simulation, and obtaining first construction time information; and correcting the first construction time information according to the water barrier construction time of the optimal water barrier layout distribution, and obtaining first corrected construction time information; calculating and obtaining a first tunnel construction score according to the first corrected construction time information, the first geological stability distribution, and the maximum water-blocking score, and continuing to perform tunnel route planning optimization to obtain an optimal tunnel route and perform tunnel construction.

[0007] Optionally, the underground tunnel construction method further includes: obtaining a construction area for tunnel construction, and planning and obtaining a first tunnel route within the tunnel construction area; dividing the first tunnel route into construction sections to obtain a first construction section sequence, and performing geological exploration on each first construction section to obtain geological characteristic data of multiple construction sections, and constructing a first tunnel geological data distribution.

[0008] Optionally, the underground tunnel construction method also includes: randomly selecting multiple construction sections within the first tunnel route as multiple first layout positions for water-blocking barrier layout construction to obtain a first water-blocking barrier layout distribution; calculating a first water-blocking score of the first water-blocking barrier layout distribution based on the tunnel geological data of the multiple first layout positions; continuing to randomly generate the water-blocking barrier layout distribution, optimizing the water-blocking barrier layout until convergence, outputting the water-blocking barrier layout distribution corresponding to the maximum water-blocking score, and obtaining the optimal water-blocking barrier layout distribution.

[0009] Optionally, the underground tunnel construction method further includes: extracting and obtaining a plurality of first permeabilities according to the tunnel geological data of the plurality of first layout positions; and calculating and obtaining a first waterproof score of the first waterproof barrier layout distribution according to the plurality of first permeabilities, as shown in the following formula: ;in, To score watertightness, and are the water-blocking weight and time weight respectively, M is the number of the first layout positions, is the permeability of the ith deployment location, is the maximum value among multiple permeabilities, T is the construction time of the water barrier at a single layout location, The expected construction time of the water barriers built for the tunnel.

[0010] Optionally, the underground tunnel construction method further includes: collecting a sample tunnel geological characteristic data set and a sample water barrier layout information set of a sample construction section according to a tunnel construction database in historical time, and collecting the shear strength of soil under different sample tunnel geological characteristic data and sample water barrier layout information, marking them as geological stability information, and obtaining a geological stability information set, wherein the sample water barrier layout information includes yes or no; using the sample tunnel geological data set and the sample water barrier layout information set as input features, and using the geological stability information set as output features, to train a geological stability identifier; according to the optimal water barrier Multiple optimal layout positions within the layout distribution are used to identify the water barrier layout information of multiple first construction sections to obtain multiple first water barrier layout information; the geological characteristic data of multiple construction sections within the first tunnel geological data distribution are combined with the multiple first water barrier layout information and input into the geological stability identifier, and multiple first geological stability information is output to obtain a first geological stability distribution; tunnel construction simulation is performed based on the multiple first geological stability information to obtain first construction time information, and the first construction time information is corrected based on the water barrier construction time of the optimal water barrier layout distribution to obtain first corrected construction time information.

[0011] Optionally, the underground tunnel construction method also includes: collecting a sample geological stability information set as an input feature based on tunnel construction data records in historical time, and collecting the average construction time of tunnel construction sections with different sample geological stability information to obtain a sample construction time set; using the sample geological stability information set and the sample construction time set as training data and verification data to train a tunnel construction simulator until the verification converges; inputting the multiple first geological stability information into the tunnel construction simulator, outputting multiple construction times, and adding them up to obtain first construction time information; obtaining the water-proof barrier construction time of the optimal water-proof barrier layout distribution, adding the first construction time information, and obtaining first corrected construction time information.

[0012] Optionally, the underground tunnel construction method further includes: calculating a first tunnel construction score according to the first corrected construction time information, the first geological stability distribution and the maximum water-blocking score, as shown in the following formula: ; Among them, SDF is the tunnel construction score, , and is the weight, , and The sum of is 1, is the preset construction time of the tunnel, To correct the construction time information, M is the number of multiple construction sections, is the geological stability information of the i-th construction section, is the variance of M geological stability information, is the maximum water-blocking score; the tunnel route planning optimization is continued in the construction area until convergence, and the tunnel route with the maximum tunnel construction score is output to obtain the optimal tunnel route.

[0013] In a second aspect, the present invention provides a construction system for an underground tunnel, comprising: a first tunnel geological data distribution acquisition module, used to acquire a construction area for tunnel construction, plan and acquire a first tunnel route in the tunnel construction area, perform geological exploration on the first tunnel route, and acquire a first tunnel geological data distribution; a waterproof barrier layout optimization module, used to optimize the waterproof barrier layout according to the first tunnel geological data distribution, and acquire an optimal waterproof barrier layout distribution corresponding to a maximum waterproof score, wherein the optimal waterproof barrier layout distribution includes a plurality of optimal layout positions; a first corrected construction time acquisition module, used to perform a geological stability impact analysis on the first tunnel geological data distribution according to the optimal waterproof barrier layout distribution, acquire a first geological stability distribution, perform tunnel construction simulation, acquire first construction time information, and correct the first construction time information according to the waterproof barrier construction time of the optimal waterproof barrier layout distribution to acquire a first corrected construction time information; an optimal tunnel route acquisition module, used to calculate and acquire a first tunnel construction score according to the first corrected construction time information, the first geological stability distribution and the maximum waterproof score, and continue to perform tunnel route planning optimization to acquire an optimal tunnel route and perform tunnel construction.

[0014] The beneficial effects of the present invention are as follows: by acquiring a construction area for tunnel construction, planning and acquiring a first tunnel route in the tunnel construction area, conducting geological exploration on the first tunnel route, and obtaining a first tunnel geological data distribution; then, based on the first tunnel geological data distribution, optimizing the layout of waterproof barriers, and obtaining an optimal waterproof barrier layout distribution corresponding to a maximum waterproof score, wherein the optimal waterproof barrier layout distribution includes a plurality of optimal layout positions; further based on the optimal waterproof barrier layout distribution, performing a geological stability impact analysis on the first tunnel geological data distribution, obtaining a first geological stability distribution, conducting a tunnel construction simulation, and obtaining first construction time information; then, based on the optimal waterproof barrier layout distribution, optimizing the layout of waterproof barriers, and obtaining an optimal waterproof barrier layout distribution corresponding to a maximum waterproof score; Assume that the construction time of the waterproof barrier is distributed, correct the first construction time information to obtain the first corrected construction time information; finally, according to the first corrected construction time information, the first geological stability distribution and the maximum waterproof score, calculate and obtain the first tunnel construction score, and continue to optimize the tunnel route planning to obtain the optimal tunnel route and carry out tunnel construction; that is to say, by optimizing the tunnel construction route according to the groundwater influencing factors to obtain the optimal tunnel route, it is possible to effectively avoid the high-risk groundwater area, improve the scientificity and accuracy of the tunnel route setting, thereby avoiding the impact of groundwater on construction, and achieving the technical effect of significantly reducing the construction time and improving the construction reliability, ensuring the construction progress and construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a process for constructing an underground tunnel provided by the present invention;

[0016] Figure 2 A schematic structural diagram of an underground tunnel construction system provided by the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are described as follows:

[0018] The first tunnel geological data distribution acquisition module 01, the water barrier layout optimization module 02, the first corrected construction time acquisition module 03, the optimal tunnel route acquisition module 04. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In the description of the present invention, the term "for example" is used to mean "used as an example, illustration or explanation". Any embodiment described as "for example" in the present invention is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is given to enable any technician in the field to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present invention.

[0022] Embodiment 1, as Figure 1 As shown, an embodiment of the present invention provides a method for constructing an underground tunnel, which specifically includes the following steps:

[0023] S100: Acquire a construction area for tunnel construction, plan and acquire a first tunnel route in the tunnel construction area, conduct geological survey on the first tunnel route, and obtain geological data distribution of a first tunnel.

[0024] Furthermore, step S100 of the present invention further includes:

[0025] S110: Acquire a construction area for tunnel construction, and plan and acquire a first tunnel route within the tunnel construction area; S120: Divide the first tunnel route into construction sections, obtain a first construction section sequence, and conduct geological exploration on each first construction section to obtain geological characteristic data of multiple construction sections, and construct a first tunnel geological data distribution.

[0026] Specifically, first, the construction area for tunnel construction is obtained, such as taking into account geological conditions, environmental impact, cost-effectiveness and other factors, and the specific construction area is refined within the target demand area; then, in the tunnel construction area, the geographic information system and other planning software are used to carry out preliminary tunnel route planning, taking into account factors such as topography, geology, hydrology, environment, traffic flow, etc., to obtain multiple alternative tunnel routes, and randomly select any route from the multiple alternative tunnel routes as the first tunnel route. Then, according to factors such as the length of the tunnel in the first tunnel route, geological conditions, construction methods, etc., combined with factors such as construction convenience, safety management, resource allocation, etc., the first tunnel route is divided into several first construction sections, and the several first construction sections are arranged according to the construction sequence or the position sequence of the construction sections to obtain the first construction section sequence.

[0027] Then, geological exploration is carried out on each first construction section in the first construction section sequence, including drilling, hydrogeological tests, etc., to obtain geological characteristic data of multiple construction sections, and the address characteristic data includes characteristics such as geological structure, lithology, and hydrogeological conditions; the geological characteristic data of multiple construction sections are further arranged and distributed according to the order of the first construction sections to generate the first tunnel geological data distribution.

[0028] S200: Optimize the layout of waterproof barriers according to the first tunnel geological data distribution to obtain the optimal layout distribution of waterproof barriers corresponding to the maximum waterproof score, wherein the optimal layout distribution of waterproof barriers includes multiple optimal layout positions.

[0029] Furthermore, step S200 of the present invention further includes:

[0030] S210: Randomly select multiple construction sections in the first tunnel route as multiple first layout positions to carry out water-blocking barrier layout construction, and obtain a first water-blocking barrier layout distribution.

[0031] Specifically, the number of waterproof barriers can be configured based on the tunnel length and hydrological conditions, and can be analyzed after considering the economy and construction feasibility. For example, the number of waterproof barriers is set to 10; then, in the multiple construction sections within the first tunnel route, according to the number of waterproof barriers, multiple (such as 10) construction sections are randomly selected as multiple first layout positions for waterproof barrier installation, that is, waterproof barriers are installed at the selected multiple construction section locations to generate a first waterproof barrier layout distribution (including multiple first layout positions).

[0032] S220: Calculate and obtain a first waterproof score for the first waterproof barrier layout distribution based on the tunnel geological data of the plurality of first layout positions.

[0033] Further, step S220 of the present invention further includes:

[0034] S221: extracting and obtaining a plurality of first permeabilities according to the tunnel geological data of the plurality of first layout positions; S222: calculating and obtaining a first waterproof score of the first waterproof barrier layout distribution according to the plurality of first permeabilities, as shown in the following formula: ;in, To score watertightness, and are the water-blocking weight and time weight respectively, M is the number of the first layout positions, is the permeability of the ith deployment location, is the maximum value among multiple permeabilities, T is the construction time of the water barrier at a single layout location, The expected construction time of the water barriers built for the tunnel.

[0035] Specifically, tunnel geological data of multiple first layout positions are obtained according to the distribution of the first tunnel geological data, and multiple first permeabilities of the multiple first layout positions are extracted. Permeability is an important parameter for evaluating geological conditions and hydrological characteristics. The larger the permeability, the stronger the water permeability of the underground medium. Therefore, the required waterproof performance of the corresponding layout position should be better.

[0036] Further construct the water-proof score calculation formula. In the water-proof score calculation formula, The water-blocking score is the water-blocking score. The larger the water-blocking score is, the better the water-blocking performance of the water-blocking barrier layout distribution is. and are the water-blocking weight and time weight, respectively. They are set according to the influence of water-blocking performance and construction time of water-blocking barriers on tunnel construction. The greater the influence, the greater the corresponding weight. M is the number of multiple first layout positions. is the permeability of the ith deployment location (any deployment location), is the maximum value among multiple permeabilities, T is the construction time of the water barrier at a single layout location, The preset waterproof barrier construction time for tunnel construction. By constructing a waterproof score calculation formula, the waterproof performance of the waterproof barrier and the impact of the construction time on tunnel construction can be comprehensively considered, thereby providing more scientific decision support for tunnel engineering; then, using the waterproof score calculation formula, according to the multiple first permeabilities, the first waterproof score of the first waterproof barrier layout distribution is calculated.

[0037] S230: Continue to randomly generate the water-blocking barrier layout distribution, optimize the water-blocking barrier layout until convergence, output the water-blocking barrier layout distribution corresponding to the maximum water-blocking score, and obtain the optimal water-blocking barrier layout distribution.

[0038] Specifically, then, in multiple construction sections within the first tunnel route, according to the number of water-blocking barriers, the second water-blocking barrier layout distribution is continuously randomly generated, and the second water-blocking score of the second water-blocking barrier layout distribution is calculated; the water-blocking barrier layout selection and water-blocking score calculation are iteratively performed until the predetermined number of selections (such as 100 times) is reached, at which time multiple water-blocking barrier layout distributions and corresponding multiple water-blocking scores are obtained; finally, the water-blocking barrier layout distribution corresponding to the maximum water-blocking score is selected as the optimal water-blocking barrier layout distribution. Through this iterative method, it can be ensured that the layout of the water-blocking barrier has been simulated and evaluated many times, and the layout distribution corresponding to the maximum water-blocking score finally selected will be the best, because it has shown the best water-blocking performance in many iterations, thereby improving the scientificity and reliability of the layout plan.

[0039] S300: According to the optimal waterproof barrier layout distribution, perform a geological stability impact analysis on the first tunnel geological data distribution to obtain a first geological stability distribution, perform a tunnel construction simulation to obtain first construction time information, and according to the waterproof barrier construction time of the optimal waterproof barrier layout distribution, correct the first construction time information to obtain first corrected construction time information.

[0040] Furthermore, step S300 of the present invention further includes:

[0041] S310: Based on the tunnel construction database in historical time, collect the sample tunnel geological characteristic data set and the sample water barrier layout information set of the sample construction section, and collect the shear strength of the soil under different sample tunnel geological characteristic data and sample water barrier layout information, mark them as geological stability information, and obtain a geological stability information set, wherein the sample water barrier layout information includes yes or no; S320: Use the sample tunnel geological data set and the sample water barrier layout information set as input features, and use the geological stability information set as output features to train a geological stability identifier; S330: According to the multiple optimal layout positions within the optimal water barrier layout distribution, identify the water barrier layout information of multiple first construction sections, and obtain multiple first water barrier layout information; S340: Input the geological characteristic data of multiple construction sections within the first tunnel geological data distribution in combination with the multiple first water barrier layout information into the geological stability identifier, output multiple first geological stability information, and obtain a first geological stability distribution.

[0042] Specifically, waterproof barriers not only play a role in waterproofing during underground tunnel construction, but also have a supporting effect on the surrounding soil. Waterproof barriers can increase the stability of the soil and prevent soil softening, settlement or collapse caused by groundwater loss. Therefore, it is necessary to combine the impact of the distribution of waterproof barriers on geological stability.

[0043] First, based on the tunnel construction database in historical time (such as the last three months), the sample tunnel geological characteristic data set and the sample water barrier layout information set of the sample construction section are collected, and the soil shear strength under different sample tunnel geological characteristic data and sample water barrier layout information is collected. The soil shear strength is an important indicator to measure the ability of soil to resist shear force damage. It has a close relationship with geological stability. The higher the shear strength of the soil, the better its geological stability. This is because the soil with high shear strength can withstand greater external loads and shear forces without being damaged. The soil shear strength is marked as geological stability information to obtain a geological stability information set, where the sample water barrier layout information includes yes or no, that is, whether the sample construction section has a water barrier.

[0044] Next, a geological stability identifier is constructed based on a BP neural network. The geological stability identifier is a BP neural network model that can be iteratively optimized in machine learning, including an input layer, multiple hidden layers and an output layer, wherein the input data of the input layer is tunnel geological data and water barrier layout information, and the output data of the output layer is geological stability information; then, the sample tunnel geological data set and the sample water barrier layout information set are used as input features, and the geological stability information set is used as output features to perform supervised training on the geological stability identifier. First, the weights and bias parameters of the network are randomly initialized, and for each training sample, the output is calculated from front to back through the network; then, a loss function (such as mean square error MSE or cross entropy loss) is used to calculate the difference between the predicted output and the actual label; further, the gradient of the weights and biases is calculated according to the loss function, and the weights and biases of the network are updated using gradient descent or other optimization algorithms (such as Adam, RMSprop); the process of forward propagation, loss calculation and back propagation is repeated until the stopping condition is met (such as reaching a predetermined number of iterations or the loss drops to a certain threshold), and a trained geological stability identifier is obtained.

[0045] Then, the water barrier layout information of multiple first construction sections is identified according to the multiple optimal layout positions within the optimal water barrier layout distribution, that is, which construction sections are laid with water barriers are identified to obtain multiple first water barrier layout information; then, the geological characteristic data of multiple construction sections within the first tunnel geological data distribution are combined with the multiple first water barrier layout information and input into the geological stability identifier, and multiple first geological stability information is obtained as output, and mapped and distributed according to the positions of the multiple first construction sections to generate a first geological stability distribution.

[0046] S350: Perform tunnel construction simulation based on multiple first geological stability information to obtain first construction time information, and correct the first construction time information based on the waterproof barrier construction time of the optimal waterproof barrier layout distribution to obtain first corrected construction time information.

[0047] Further, step S350 of the present invention further includes:

[0048] S351: Based on the tunnel construction data records in the historical time, a sample geological stability information set is collected as input features, and the average construction time of the tunnel construction sections with different sample geological stability information is collected to obtain a sample construction time set; S352: The sample geological stability information set and the sample construction time set are used as training data and verification data to train the tunnel construction simulator until the verification converges; S353: The multiple first geological stability information are input into the tunnel construction simulator, and multiple construction times are obtained by output, and the first construction time information is obtained by adding them up; S354: The water-proof barrier construction time of the optimal water-proof barrier layout distribution is obtained, and the first construction time information is added up to obtain the first corrected construction time information.

[0049] Specifically, according to the tunnel construction data records in historical time (such as within the last three months), a sample geological stability information set is collected as input features, and the average construction time of the tunnel construction sections with different sample geological stability information is collected (the average of multiple sample construction times under the same sample geological stability information can be calculated) is set as the sample construction time, and the sample construction time set is obtained.

[0050] A tunnel construction simulator is further constructed based on the BP neural network. The tunnel construction simulator includes an input layer, multiple hidden layers and an output layer. The input data of the input layer is geological stability information, and the output data of the output layer is construction time. Then, the sample geological stability information set is used as training data, and the sample construction time set is used as supervised verification data during training to perform supervised training on the tunnel construction simulator. First, for each training sample, the output is calculated from front to back through the network. Then, an appropriate loss function, such as mean square error (MSE), is used to calculate the difference between the predicted construction time and the actual construction time. The gradient of the weights and biases is further calculated according to the loss function, and the weights and biases of the network are updated using gradient descent or other optimization algorithms. Iterative training is repeated, and when a predetermined number of iterations is reached or the loss drops to a certain threshold, the training is stopped to obtain a trained tunnel construction simulator.

[0051] Then, the multiple first geological stability information is input into the tunnel construction simulator, and multiple construction times are outputted, and the multiple construction times are summed up to obtain the first construction time information; on the other hand, the waterproof barrier construction time of the optimal waterproof barrier layout distribution is obtained, and then the waterproof barrier construction time and the first construction time information are added and summed to obtain the first corrected construction time information (i.e., the overall construction duration of the tunnel).

[0052] By constructing a geological stability identifier and a tunnel construction simulator based on a BP neural network, the intelligence and scientificity of geological stability and construction time analysis can be improved, and the analysis efficiency and accuracy can be effectively improved, thereby providing reliable data support for tunnel route planning and optimization.

[0053] S400: Calculate a first tunnel construction score based on the first corrected construction time information, the first geological stability distribution and the maximum water-blocking score, and continue to optimize the tunnel route planning to obtain the optimal tunnel route and perform tunnel construction.

[0054] Furthermore, step S400 of the present invention further includes:

[0055] S410: Calculate a first tunnel construction score according to the first corrected construction time information, the first geological stability distribution and the maximum water-blocking score, as shown in the following formula: ; Among them, SDF is the tunnel construction score, , and is the weight, , and The sum of is 1, is the preset construction time of the tunnel, To correct the construction time information, M is the number of multiple construction sections, is the geological stability information of the i-th construction section, is the variance of M geological stability information, is the maximum water-blocking score; S420: continue to optimize the tunnel route planning in the construction area until convergence, output the tunnel route with the maximum tunnel construction score, and obtain the optimal tunnel route.

[0056] Specifically, a tunnel construction evaluation function is constructed, in which SDF is the tunnel construction score. The higher the tunnel construction score, the better the overall construction effect. , and They are construction efficiency weight, geological stability weight and water-proof score weight. , and The sum of the indicators is 1, and the influence of the indicators on the overall tunnel construction can be set. The greater the influence, the greater the weight. is the preset construction time of the tunnel, To correct the construction time information, M is the number of multiple construction sections, is the geological stability information of the i-th construction section (any construction section), is the variance of M geological stability information, which represents the overall geological stability. The smaller the variance, the higher the overall geological stability. By constructing the tunnel construction evaluation function, the influence of construction efficiency, geological stability and water-blocking score on tunnel construction can be comprehensively considered, and the overall effect of tunnel construction can be fully reflected, thereby improving the accuracy and scientificity of tunnel route optimization analysis.

[0057] Then, the tunnel construction evaluation function is used to calculate the first tunnel construction score of the first tunnel route according to the first corrected construction time information, the first geological stability distribution and the maximum water-blocking score; other alternative tunnel routes are further analyzed until all alternative tunnel routes are analyzed, and multiple tunnel construction scores of multiple alternative tunnel routes are obtained, and the tunnel route with the largest tunnel construction score is set as the optimal tunnel route.

[0058] The method for constructing an underground tunnel provided by the embodiment of the present invention has at least the following technical effects:

[0059] By acquiring a construction area for tunnel construction, planning and acquiring a first tunnel route in the tunnel construction area, conducting geological exploration on the first tunnel route, and obtaining a first tunnel geological data distribution; then, based on the first tunnel geological data distribution, optimizing the layout of waterproof barriers, and obtaining an optimal waterproof barrier layout distribution corresponding to a maximum waterproof score, wherein the optimal waterproof barrier layout distribution includes a plurality of optimal layout positions; further, based on the optimal waterproof barrier layout distribution, performing a geological stability impact analysis on the first tunnel geological data distribution, obtaining a first geological stability distribution, conducting a tunnel construction simulation, and obtaining first construction time information; then, based on the optimal waterproof barrier layout distribution, optimizing the layout of waterproof barriers, and obtaining an optimal waterproof barrier layout distribution. The water barrier construction time is used to correct the first construction time information to obtain the first corrected construction time information; finally, according to the first corrected construction time information, the first geological stability distribution and the maximum water barrier score, the first tunnel construction score is calculated, and the tunnel route planning optimization is continued to obtain the optimal tunnel route and carry out tunnel construction; that is to say, by optimizing the tunnel construction route according to the groundwater influencing factors to obtain the optimal tunnel route, it is possible to effectively avoid the high-risk groundwater areas, improve the scientificity and accuracy of the tunnel route setting, thereby avoiding the impact of groundwater on construction, and achieving the technical effect of significantly reducing the construction time and improving the construction reliability, ensuring the construction progress and construction safety.

[0060] Embodiment 2, as Figure 2 As shown, based on the same inventive concept as the method for constructing an underground tunnel provided in the first embodiment, the embodiment of the present invention further provides a system for constructing an underground tunnel, including:

[0061] The first tunnel geological data distribution acquisition module 01 is used to acquire the construction area for tunnel construction, plan and acquire the first tunnel route in the tunnel construction area, conduct geological exploration on the first tunnel route, and obtain the first tunnel geological data distribution; the water barrier layout optimization module 02 is used to optimize the water barrier layout according to the first tunnel geological data distribution, and obtain the optimal water barrier layout distribution corresponding to the maximum water barrier score, wherein the optimal water barrier layout distribution includes multiple optimal layout positions; the first corrected construction time acquisition module 03 is used to perform geological stability impact analysis on the first tunnel geological data distribution according to the optimal water barrier layout distribution, obtain the first geological stability distribution, perform tunnel construction simulation, obtain the first construction time information, and correct the first construction time information according to the water barrier construction time of the optimal water barrier layout distribution to obtain the first corrected construction time information; the optimal tunnel route acquisition module 04 is used to calculate and obtain the first tunnel construction score according to the first corrected construction time information, the first geological stability distribution and the maximum water barrier score, and continue to optimize the tunnel route planning to obtain the optimal tunnel route and construct the tunnel.

[0062] Furthermore, the underground tunnel construction system is also used to: obtain a construction area for tunnel construction, and plan and obtain a first tunnel route within the tunnel construction area; divide the first tunnel route into construction sections to obtain a first construction section sequence, and conduct geological exploration on each first construction section to obtain geological characteristic data of multiple construction sections, and construct a first tunnel geological data distribution.

[0063] Furthermore, the underground tunnel construction system is also used to: randomly select multiple construction sections as multiple first layout positions in the multiple construction sections within the first tunnel route to carry out water-blocking barrier layout construction, and obtain a first water-blocking barrier layout distribution; calculate and obtain a first water-blocking score of the first water-blocking barrier layout distribution based on the tunnel geological data of the multiple first layout positions; continue to randomly generate water-blocking barrier layout distribution, optimize the water-blocking barrier layout until convergence, output the water-blocking barrier layout distribution corresponding to the maximum water-blocking score, and obtain the optimal water-blocking barrier layout distribution.

[0064] Furthermore, the underground tunnel construction system is also used to: extract and obtain a plurality of first permeabilities according to the tunnel geological data of the plurality of first layout positions; and calculate and obtain a first waterproof score of the first waterproof barrier layout distribution according to the plurality of first permeabilities, as shown in the following formula: ;in, To score watertightness, and are the water-blocking weight and time weight respectively, M is the number of the first layout positions, is the permeability of the ith deployment location, is the maximum value among multiple permeabilities, T is the construction time of the water barrier at a single layout location, The expected construction time of the water barriers built for the tunnel.

[0065] Furthermore, the underground tunnel construction system is also used to: collect a sample tunnel geological characteristic data set and a sample water barrier layout information set of a sample construction section according to a tunnel construction database in a historical period, and collect the shear strength of soil under different sample tunnel geological characteristic data and sample water barrier layout information, annotate them as geological stability information, and obtain a geological stability information set, wherein the sample water barrier layout information includes yes or no; use the sample tunnel geological data set and the sample water barrier layout information set as input features, use the geological stability information set as output features, and train a geological stability identifier; according to the optimal water barrier Multiple optimal layout positions within the layout distribution are used to identify the water barrier layout information of multiple first construction sections to obtain multiple first water barrier layout information; the geological characteristic data of multiple construction sections within the first tunnel geological data distribution are combined with the multiple first water barrier layout information and input into the geological stability identifier, and multiple first geological stability information is output to obtain a first geological stability distribution; tunnel construction simulation is performed based on the multiple first geological stability information to obtain first construction time information, and the first construction time information is corrected based on the water barrier construction time of the optimal water barrier layout distribution to obtain first corrected construction time information.

[0066] Furthermore, the underground tunnel construction system is also used to: collect a set of sample geological stability information as input features based on tunnel construction data records in historical time, and collect the average construction time of tunnel construction sections with different sample geological stability information to obtain a set of sample construction time; use the sample geological stability information set and the sample construction time set as training data and verification data to train a tunnel construction simulator until the verification converges; input the multiple first geological stability information into the tunnel construction simulator, output multiple construction times, and add them up to obtain first construction time information; obtain the water-proof barrier construction time of the optimal water-proof barrier layout distribution, add the first construction time information, and obtain first corrected construction time information.

[0067] Furthermore, the underground tunnel construction system is further used to calculate a first tunnel construction score according to the first corrected construction time information, the first geological stability distribution and the maximum water-blocking score, as shown in the following formula: ; Among them, SDF is the tunnel construction score, , and is the weight, , and The sum of is 1, is the preset construction time of the tunnel, To correct the construction time information, M is the number of multiple construction sections, is the geological stability information of the i-th construction section, is the variance of M geological stability information, is the maximum water-blocking score; the tunnel route planning optimization is continued in the construction area until convergence, and the tunnel route with the maximum tunnel construction score is output to obtain the optimal tunnel route.

[0068] Although preferred embodiments of the present invention have been described, additional changes and modifications may occur to these embodiments once those skilled in the art understand the basic inventive concepts.

[0069] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention belong to the scope of the present invention and its equivalent technologies, the present invention is also intended to include these changes and variations.

Claims

1. A method for constructing an underground tunnel, characterized in that: Methods include: Acquire a construction area for tunnel construction, plan and acquire a first tunnel route in the tunnel construction area, conduct geological exploration on the first tunnel route, and obtain geological data distribution of the first tunnel; According to the first tunnel geological data distribution, the waterproof barrier layout is optimized to obtain the optimal waterproof barrier layout distribution corresponding to the maximum waterproof score, wherein the optimal waterproof barrier layout distribution includes multiple optimal layout positions; According to the optimal water barrier layout distribution, the geological stability impact analysis is performed on the first tunnel geological data distribution to obtain a first geological stability distribution, and a tunnel construction simulation is performed to obtain first construction time information. The water barrier construction time according to the optimal water barrier layout distribution includes: According to the tunnel construction database in the historical time, the sample tunnel geological characteristic data set and the sample water barrier layout information set of the sample construction section are collected, and the soil shear strength under different sample tunnel geological characteristic data and sample water barrier layout information is collected and marked as geological stability information to obtain the geological stability information set, wherein the sample water barrier layout information includes yes or no; Using the sample tunnel geological data set and the sample water barrier layout information set as input features, and using the geological stability information set as output features, to train a geological stability identifier; According to the multiple optimal layout positions within the optimal water barrier layout distribution, water barrier layout information is marked for multiple first construction sections to obtain multiple first water barrier layout information; Inputting the geological characteristic data of the multiple construction sections in the first tunnel geological data distribution into the geological stability identifier in combination with the multiple first water barrier layout information, outputting multiple first geological stability information, and obtaining a first geological stability distribution; Perform tunnel construction simulation according to the plurality of first geological stability information to obtain first construction time information; Correcting the first construction time information to obtain first corrected construction time information; According to the first corrected construction time information, the first geological stability distribution and the maximum water-blocking score, a first tunnel construction score is calculated, and tunnel route planning optimization is continued to obtain an optimal tunnel route and perform tunnel construction, including: According to the first corrected construction time information, the first geological stability distribution and the maximum water-blocking score, a first tunnel construction score is calculated as follows: ； Among them, SDF is the score for tunnel construction. , and is the weight, , and The sum of is 1, is the preset construction time of the tunnel, To correct the construction time information, M is the number of multiple construction sections, is the geological stability information of the i-th construction section, is the variance of M geological stability information, Score for maximum water-repellency; Continue to perform tunnel route planning optimization in the construction area until convergence, output the tunnel route with the largest tunnel construction score, and obtain the optimal tunnel route.

2. The method for constructing an underground tunnel according to claim 1, characterized in that: Acquiring a construction area for tunnel construction, planning and acquiring a first tunnel route in the tunnel construction area, performing geological exploration on the first tunnel route, and obtaining geological data distribution of the first tunnel, including: Acquire a construction area for tunnel construction, and plan and acquire a first tunnel route in the tunnel construction area; The first tunnel route is divided into construction sections to obtain a first construction section sequence, and geological exploration is performed on each first construction section to obtain geological characteristic data of multiple construction sections to construct a first tunnel geological data distribution.

3. The method for constructing an underground tunnel according to claim 1, characterized in that: According to the geological data distribution of the first tunnel, the water barrier layout is optimized to obtain the optimal water barrier layout distribution corresponding to the maximum water barrier score, including: Randomly select multiple construction sections in the first tunnel route as multiple first layout positions to carry out water barrier layout construction, and obtain a first water barrier layout distribution; Calculate and obtain a first waterproof score for the first waterproof barrier layout distribution according to the tunnel geological data of the plurality of first layout positions; Continue to randomly generate the distribution of waterproof barrier layouts, optimize the waterproof barrier layouts until convergence, output the waterproof barrier layout distribution corresponding to the maximum waterproof score, and obtain the optimal waterproof barrier layout distribution.

4. The method for constructing an underground tunnel according to claim 3, characterized in that: Calculating and obtaining a first waterproof score of the first waterproof barrier layout distribution according to the tunnel geological data of the plurality of first layout positions includes: Extracting and obtaining a plurality of first permeabilities according to the tunnel geological data of the plurality of first deployment positions; According to the multiple first permeabilities, the first waterproof score of the first waterproof barrier layout distribution is calculated as follows: ； in, To score watertightness, and are the water-blocking weight and time weight respectively, M is the number of the first layout positions, is the permeability of the ith deployment location, is the maximum value among multiple permeabilities, T is the construction time of the water barrier at a single layout location, The expected construction time of the water barriers built for the tunnel.

5. The method for constructing an underground tunnel according to claim 3, characterized in that: The first construction time information is modified, including: According to the waterproof barrier construction time of the optimal waterproof barrier layout distribution, the first construction time information is corrected to obtain first corrected construction time information.

6. The method for constructing an underground tunnel according to claim 5, characterized in that: According to the plurality of first geological stability information, tunnel construction simulation is performed to obtain first construction time information, and according to the waterproof barrier construction time of the optimal waterproof barrier layout distribution, the first construction time information is corrected to obtain first corrected construction time information, including: According to the tunnel construction data records in the historical time, a sample geological stability information set is collected as an input feature, and the average construction time of the tunnel construction sections with different sample geological stability information is collected to obtain a sample construction time set; Using the sample geological stability information set and the sample construction time set as training data and verification data, training a tunnel construction simulator until verification convergence; Input the plurality of first geological stability information into the tunnel construction simulator, output and obtain a plurality of construction times, and add them up to obtain first construction time information; The water-blocking barrier construction time of the optimal water-blocking barrier layout distribution is obtained, and the first construction time information is added to obtain the first corrected construction time information.

7. A construction system for an underground tunnel, characterized in that: The steps for implementing the method for constructing an underground tunnel as claimed in any one of claims 1 to 6 include: A first tunnel geological data distribution acquisition module is used to acquire a construction area for tunnel construction, plan and acquire a first tunnel route in the tunnel construction area, perform geological exploration on the first tunnel route, and acquire the first tunnel geological data distribution; A water barrier layout optimization module, used to optimize the layout of water barriers according to the first tunnel geological data distribution, and obtain an optimal water barrier layout distribution corresponding to the maximum water barrier score, wherein the optimal water barrier layout distribution includes multiple optimal layout positions; A first revised construction time acquisition module is used to perform a geological stability impact analysis on the first tunnel geological data distribution according to the optimal waterproof barrier layout distribution, obtain a first geological stability distribution, perform tunnel construction simulation, obtain first construction time information, and correct the first construction time information according to the waterproof barrier construction time of the optimal waterproof barrier layout distribution to obtain first revised construction time information; The optimal tunnel route acquisition module is used to calculate the first tunnel construction score based on the first corrected construction time information, the first geological stability distribution and the maximum water-blocking score, and continue to optimize the tunnel route planning to obtain the optimal tunnel route and carry out tunnel construction.

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