Mountain road cross-ridge tunnel line selection determination method and system and medium

Abstract

The invention discloses a mountain road ridge-crossing tunnel line selection determination method and system and a medium. Relates to the technical field of tunnel engineering. According to the scheme, elevation calculation analysis and tunnel layout analysis are performed according to the basic data of the mountain road to obtain tunnel layout information; then, the tunnel layout information is adjusted in combination with an auxiliary judgment condition and a historical scheme database, a tunnel line selection scheme is automatically generated, and meanwhile, the tunnel layout information is adjusted in combination with the auxiliary judgment condition and the historical scheme database, so that autonomous choice limitation is realized; and the accuracy of generating the tunnel line selection scheme is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel engineering, and particularly to a method, a system and a medium for determining the route selection of mountain highway through - ridge tunnels. Background Art

[0002] With the gradual advancement of the road network planning towards mountain highways, more and more mountain highway tunnels have entered the construction stage. At present, the route selection of low - grade mountain highway tunnels is not systematic. There are often many schemes, which are time - consuming and labor - intensive, and it is difficult for the owner to make a decision. How to quickly and accurately determine the route selection scheme of low - grade mountain highway tunnels is an urgent problem to be solved. Summary of the Invention

[0003] The technical problem to be solved by the invention is that: at present, the route selection of low - grade mountain highway tunnels is not systematic. There are often many schemes, which are time - consuming and labor - intensive, and it is difficult to make a decision. And the finally selected scheme; The purpose of the present invention is to provide a method, a system and a medium for determining the route selection of mountain highway through - ridge tunnels. Through elevation calculation analysis and tunnel layout analysis based on the basic data of mountain highways, considering the avoidance of old - road disaster points and the problem of ice - snow road section closure caused by the high elevation of the old road crossing mountains, tunnel layout information is obtained; Then, combined with auxiliary judgment conditions and the historical scheme database, the tunnel layout information is adjusted to automatically generate a tunnel route selection scheme. At the same time, this scheme also adjusts the tunnel layout information through the combination of auxiliary judgment conditions and the historical scheme database to realize autonomous limited decision - making and ensure the accuracy of the generated tunnel route selection scheme.

[0004] The present invention is realized through the following technical solutions: This scheme provides a method for determining the route selection of mountain highway through - ridge tunnels, including: Collecting the basic data of mountain highways and pre - processing the basic data; Based on the pre - processed basic data, performing elevation calculation analysis and tunnel layout analysis to obtain tunnel layout information; Combining auxiliary judgment conditions and the historical scheme database to adjust the tunnel layout information to obtain a tunnel route selection scheme.

[0005] Further optimized scheme is that the basic data includes: survey data, geological data, environmental data and special influence factors; The survey data includes: data of residents along the line, current status of old - road diseases and snow line elevation; The geological data includes: strike of fault zones, distribution range of soluble rocks and direction of in - situ stress; The environmental data includes: scope of nature reserves, scope of ecological red lines, hydrology, monthly average temperature and monthly average humidity; The special influence factors include: terrain, regional geological data and highway technical grade.

[0006] A further optimized solution is that the preprocessing includes: cleaning the basic data and replacing the missing values and outliers in the basic data with the mean, median or mode.

[0007] A further optimized solution is to perform elevation calculation analysis and tunnel layout analysis based on the basic data to obtain tunnel layout information; the methods include: Based on the current situation of old road diseases, determine the tunnel elevation and preliminary tunnel axis of different alignment schemes, and calculate the number of days of ice and snow weather for tunnels of different alignment schemes based on the snow line elevation; the method for determining the tunnel elevation and preliminary tunnel axis of different alignment schemes based on the current situation of old road diseases includes: determining the old road disease points according to the current situation of old road diseases; on the basis of the old road disease points, determine the tunnel elevation and preliminary tunnel axis of different route selection schemes according to the avoidance conditions; the avoidance conditions include: for the low-line scheme, avoid all old road disease points; for the middle-line scheme, avoid the number of old road disease points in the first range, and for the high-line scheme, avoid the number of old road disease points in the second range; where the elevation of the old road disease points in the first range is less than the elevation of the old road disease points in the second range; Determine the main tunnel layout according to the data of the residents along the line, the strike of the fault zone, the distribution range of soluble rock and the direction of in-situ stress; Output the main tunnel layout, tunnel elevation, preliminary tunnel axis and the number of days of ice and snow weather.

[0008] A further optimized solution is that the method for determining the main tunnel layout according to the data of the residents along the line, the strike of the fault zone, the distribution range of soluble rock and the direction of in-situ stress includes: Determine whether the corresponding main tunnel outcrops according to the data of the residents along the line. When the number of residents along the line exceeds the resident number threshold, the corresponding main tunnel outcrops; otherwise, the corresponding main tunnel does not outcrop; According to the strike of the fault zone, make the corresponding main tunnel intersect the intersecting fault zone as perpendicular as possible, so that the length of the corresponding main tunnel crossing the fault zone is the shortest; According to the distribution range of soluble rock, make the corresponding main tunnel intersect the soluble rock zone as perpendicular as possible, so that the length of the corresponding main tunnel crossing the soluble rock zone is the shortest; According to the direction of in-situ stress, make the axis of the corresponding main tunnel intersect the main tunnel at a small angle.

[0009] A further optimized solution is that the method for determining the tunnel elevation and preliminary tunnel axis of different route selection schemes on the basis of the old road disease points includes: Statistical elevation of each old road disease point, with the elevation H of the highest old road disease point max as the boundary, divided into the small mileage direction and the large mileage direction; A further optimization plan is to determine the tunnel elevation and the preliminary tunnel axis of different route selection plans based on the disease points of the old road; the method includes: Obtain the elevations of each disease point of the old road in the direction of the small mileage number, from high to low as {A 1、 A 2、 A 3 .....A n}; Obtain the direction of the large mileage number Count the elevations of each disease point of the old road, from high to low as {B 1、 B 2、 B 3 .....B n}; Take {A 1 -N, A 1} as the first small elevation range, where N represents the elevation range parameter. Select the portal elevation within the first small elevation range in combination with the topographic map as the tunnel entrance elevation of the low-line plan, denoted as H 低进 ; Take {B 1 -N, B 1} as the first large elevation range. Select the portal elevation within the first large elevation range in combination with the topographic map as the tunnel exit elevation of the low-line plan, denoted as H 低出 ; Connect the tunnel entrance elevation H 低进 and the tunnel exit elevation H 低出 to obtain the preliminary tunnel axis of the low-line plan; Take {A 1 +1 / 3(A n -A 1 )-N, A 1 +1 / 3(A n -A 1 )} as the second small elevation range. Select the portal elevation within the second small elevation range in combination with the topographic map as the tunnel entrance elevation of the middle-line plan, denoted as H 低进 ; Take {B 1 +1 / 3(B n -B 1 )-N, B 1 +1 / 3(B n -B 1 )} as the second large elevation range. Select the portal elevation within the second large elevation range in combination with the topographic map as the tunnel exit elevation of the middle-line plan, denoted as H 中出 ; Connect the tunnel entrance elevation H 中进 and the tunnel exit elevation H 中出 to obtain the preliminary tunnel axis; Connect the tunnel entrance elevation H 中进 and the tunnel exit elevation H 中出 to obtain the preliminary tunnel axis of the middle-line plan; Taking {A 1 + 2 / 3(A n - A 1 ) - N, A 1 + 2 / 3(A n - A 1 )} as the third smallest elevation range, select the portal elevation within the third smallest elevation range in combination with the topographic map as the tunnel entrance elevation of the high-line scheme, denoted as H 高进 ; Taking {B 1 + 2 / 3(B n - B 1 ) - 50, B 1 + 2 / 3(B n - B 1 )} as the third largest elevation range, select the portal elevation within the third largest elevation range in combination with the topographic map as the tunnel exit elevation of the high-line scheme, denoted as H 高出 ; Connect the tunnel entrance elevation H 高进 and the tunnel exit elevation H 高出 to obtain the preliminary tunnel axis; Connect the tunnel entrance elevation H 高进 and the tunnel exit elevation H 高出 to obtain the preliminary tunnel axis of the center-line scheme.

[0010] The further optimization plan is to adjust the tunnel layout information by combining the auxiliary judgment conditions and the historical plan database to determine the tunnel axis plan; The method includes: Obtain the auxiliary judgment conditions of the tunnel, search for the reference plan matching the tunnel layout information in the constructed learning plan database, and adjust the preliminary tunnel axis; The auxiliary judgment conditions of the tunnel include: construction period requirements, section requirements, environmental constraints, ventilation calculation parameters, and whether there are existing structures on the tunnel roof.

[0011] The further optimization plan is that the reference plan includes: TBM main tunnel plan, TBM pilot tunnel plan, drill and blast method plan, drill and blast method auxiliary shaft construction plan, and non-explosive excavation plan.

[0012] This plan also provides a mountain highway over-the-mountain tunnel route selection determination system for implementing the above-mentioned mountain highway over-the-mountain tunnel route selection determination method. The system includes: A collection module for collecting the basic data of the mountain highway and preprocessing the basic data; A calculation and analysis module for performing elevation calculation analysis and tunnel layout analysis based on the preprocessed basic data to obtain tunnel layout information; An adjustment module for adjusting the tunnel layout information by combining the auxiliary judgment conditions and the historical plan database to obtain a tunnel route selection plan.

[0013] The present solution also provides a computer-readable medium, on which a computer program is stored, characterized in that the computer program, when executed by a processor, can implement a method for determining the route selection of a mountain highway overpass tunnel as described above.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects: The present invention provides a method, a system and a medium for determining the route selection of a mountain highway overpass tunnel; according to the basic data of the mountain highway, the elevation calculation and analysis and the tunnel layout analysis are carried out to obtain the tunnel layout information; then, in combination with the auxiliary determination conditions and the historical scheme database, the tunnel layout information is adjusted, and a tunnel route selection scheme is automatically generated. At the same time, the present solution also adjusts the tunnel layout information through the combination of the auxiliary determination conditions and the historical scheme database to realize autonomous limit decision-making and ensure the accuracy of the generated tunnel route selection scheme. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts. In the drawings: Figure 1 It is a schematic flow chart of the method for determining the route selection of a mountain highway overpass tunnel; Figure 2 It is a schematic data flow diagram of the process of determining the route selection of a mountain highway overpass tunnel; Figure 3 It is a schematic diagram of the process of determining the tunnel elevation and the preliminary tunnel axis of different route selection schemes in Embodiment 1. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following will further describe the present invention in detail in combination with the embodiments and the drawings. The illustrative embodiments and descriptions thereof of the present invention are only used to explain the present invention and are not used to limit the present invention.

[0017] At present, the route selection of low-grade mountain highway tunnels is not systematic. There are often many schemes, which are time-consuming and laborious, difficult to make a choice, and the finally selected scheme; in view of this, the present solution provides the following embodiments to solve the above technical problems.

[0018] Embodiment 1: This embodiment provides a method for determining the route selection of a mountain highway overpass tunnel, as shown in Figure 1 and Figure 2 shown, including: Step 1: Collect the basic data of mountain roads and preprocess the basic data; the basic data includes: survey data, geological data, environmental data, and special influencing factors; The survey data includes: data of residents along the line, current status of old road diseases, and snow line elevation; The geological data includes: strike of fault zones, distribution range of soluble rocks, and direction of in-situ stress; The environmental data includes: scope of nature reserves, scope of ecological red lines, hydrology, monthly average temperature, and monthly average humidity; The special influencing factors include: terrain, regional geological data, and highway technical grade.

[0019] The preprocessing includes: cleaning the basic data and replacing missing values and outliers in the basic data with mean, median, or mode.

[0020] Step 2: Conduct elevation calculation analysis and tunnel layout analysis based on the preprocessed basic data to obtain tunnel layout information; this step specifically includes the method: S21, according to the current status of old road diseases, determine the tunnel elevation and preliminary tunnel axis of different alignment schemes, and calculate the number of days of ice and snow weather for tunnels of different alignment schemes based on the snow line elevation; the method of determining the tunnel elevation and preliminary tunnel axis of different alignment schemes according to the current status of old road diseases includes: determining the old road disease points according to the current status of old road diseases; on the basis of the old road disease points, determine the tunnel elevation and preliminary tunnel axis of different route selection schemes according to the avoidance conditions; the avoidance conditions include: for the low-line scheme, avoid all old road disease points; for the mid-line scheme, avoid the number of old road disease points in the first range, and for the high-line scheme, avoid the number of old road disease points in the second range; among them, the elevation of the old road disease points in the first range is less than the elevation of the old road disease points in the second range; In this step, the method of determining the tunnel elevation and preliminary tunnel axis of different route selection schemes according to the avoidance conditions on the basis of the old road disease points includes: S211, obtain the elevations of each old road disease point in the small stake number direction, from high to low as {A 1、 A 2、 A 3 .....A n}; obtain the large stake number direction, from high to low as {B 1、 B 2、 B 3 .....B n}; S212, with {A 1 -N, A 1} is the first small elevation range, N represents the elevation range parameter, and in this embodiment, N is taken as 50. In the first small elevation range, the portal elevation is selected in combination with the topographic map as the tunnel inlet elevation of the low-line scheme, denoted as H 低进 ; Taking {B 1 -N, B 1} as the first large elevation range, in the first large elevation range, the portal elevation is selected in combination with the topographic map as the tunnel outlet elevation of the low-line scheme, denoted as H 低出 ; Connect the tunnel inlet elevation H 低进 and the tunnel outlet elevation H 低出 to obtain the preliminary tunnel axis of the low-line scheme; S213, taking {A 1 +1 / 3(A n -A 1 )-N, A 1 +1 / 3(A n -A 1 )} as the second small elevation range, in the second small elevation range, the portal elevation is selected in combination with the topographic map as the tunnel inlet elevation of the middle-line scheme, denoted as H 低进 ; Taking {B 1 +1 / 3(B n -B 1 )-N, B 1 +1 / 3(B n -B 1 )} as the second large elevation range, in the second large elevation range, the portal elevation is selected in combination with the topographic map as the tunnel outlet elevation of the middle-line scheme, denoted as H 中出 ; Connect the tunnel inlet elevation H 中进 and the tunnel outlet elevation H 中出 to obtain the preliminary tunnel axis; Connect the tunnel inlet elevation H 中进 and the tunnel outlet elevation H 中出 to obtain the preliminary tunnel axis of the middle-line scheme; S214, taking {A 1 +2 / 3(A n -A 1 ) -N, A 1 +2 / 3(A n -A 1 )} as the third small elevation range, in the third small elevation range, the portal elevation is selected in combination with the topographic map as the tunnel inlet elevation of the high-line scheme, denoted as H 高进 ; Taking {B 1 +2 / 3(B n -B 1 )-50, B 1 +2 / 3(B n-B 1 )} is the third largest elevation range. Select the elevation of the tunnel exit of the high-line scheme as the elevation of the tunnel exit in the third largest elevation range by combining with the topographic map, denoted as H 高出 ; Connect the elevation H 高进 of the tunnel entrance and the elevation H 高出 of the tunnel exit to obtain the preliminary tunnel axis; Connect the elevation H 高进 of the tunnel entrance and the elevation H 高出 of the tunnel exit to obtain the preliminary tunnel axis of the middle-line scheme.

[0021] As Figure 3 shown, in this embodiment, according to the input old road disease points, the lowest elevation A along the small station number direction and the lowest elevation B along the large station number direction of the old road disease points are obtained. According to the elevation A, find a suitable elevation of the tunnel entrance within 50 m lower than the elevation A as the elevation of the tunnel entrance of the low-line scheme, and find a suitable elevation of the tunnel exit within 50 m lower than the elevation B as the elevation of the tunnel exit of the low-line scheme, determine the elevations of the tunnel entrance and exit of the low-line scheme, and then determine the tunnel axis scheme according to the remaining discrimination conditions.

[0022] According to the input old road disease points, calculate the difference C between the highest elevation and the lowest elevation of the old road disease points. Take A + 1 / 3C and B + 1 / 3C; According to the elevation A + 1 / 3C, find a suitable elevation of the tunnel entrance within 50 m lower than the elevation (A + 1 / 3C) as the elevation of the tunnel entrance of the middle-line scheme: find a suitable elevation of the tunnel exit within 50 m lower than the elevation (B + 1 / 3C) as the elevation of the tunnel exit of the middle-line scheme; Determine the elevations of the tunnel entrance and exit of the middle-line scheme, and then determine the tunnel axis scheme according to the remaining discrimination conditions; According to the input old road disease points, calculate the difference C between the highest elevation and the lowest elevation of the old road disease points. Take A + 2 / 3C and B + 2 / 3C. According to the elevation A + 2 / 3C, find a suitable elevation of the tunnel entrance within 50 m lower than the elevation (A + 2 / 3C) as the elevation of the tunnel entrance of the high-line scheme; find a suitable elevation of the tunnel exit within 50 m lower than the elevation (B + 2 / 30) as the elevation of the tunnel exit of the high-line scheme. Determine the elevations of the tunnel entrance and exit of the high-line scheme, and then determine the tunnel axis scheme according to the remaining discrimination conditions.

[0023] S22. Determine the main layout of the tunnel according to the data of the residents along the line, the strike of the fault zone, the distribution range of soluble rock and the direction of in-situ stress; The methods include: Determine whether the corresponding tunnel main body is outcropped according to the data of the residents along the line. When the number of residents along the line exceeds the threshold of the number of residents, the corresponding tunnel main body is outcropped; Otherwise, the corresponding tunnel main body is not outcropped; According to the strike of the fault zone, make the corresponding tunnel main body intersect with the intersecting fault zone as perpendicular as possible, so that the length of the corresponding tunnel main body crossing the fault zone is the shortest; According to the distribution range of soluble rock, make the corresponding tunnel main body intersect the soluble rock zone as perpendicular as possible, so that the length of the corresponding tunnel main body passing through the soluble rock zone is the shortest; According to the direction of in-situ stress, make the axis of the corresponding tunnel main body intersect the tunnel main body at a small angle.

[0024] S23, output the tunnel main body layout, tunnel elevation, preliminary tunnel axis and the number of days of ice and snow weather.

[0025] Step 3: Adjust the tunnel layout information in combination with the auxiliary judgment conditions and the historical scheme database to obtain a tunnel route selection scheme; this step specifically includes the method: Obtain the auxiliary judgment conditions of the tunnel, search for the reference schemes matching the tunnel layout information in the constructed learning scheme database, and adjust the preliminary tunnel axis; the auxiliary judgment conditions of the tunnel include: construction period requirements, section requirements, environmental constraints, ventilation calculation parameters, and whether there are existing structures on the tunnel roof.

[0026] The finally output tunnel route selection scheme includes: tunnel axis scheme, tunnel lengths of different elevation schemes (high line, middle line, low line); portal elevation; number of days of ice and snow weather; number of disaster points to be bypassed; mileage saved; number of remaining hairpin bends on the old road; maximum buried depth; range of crossing the fault zone; range of crossing the soluble rock; included angle between the principal stress and the tunnel axis.

[0027] The reference schemes include: TBM main tunnel scheme, TBM pilot tunnel scheme, drill and blast method scheme, drill and blast method inclined shaft auxiliary construction scheme, and non-explosive excavation scheme.

[0028] Calculate the construction period of the TBM main tunnel scheme according to the excavation section and the footage data of the geological conditions of the TBM tunnel adopted globally that match the project of this scheme, and calculate the construction period of the TBM pilot tunnel scheme according to the pilot tunnel section and the footage data of the geological conditions of the TBM pilot tunnel auxiliary main tunnel construction adopted globally that match the project of this scheme; calculate the construction period of the drill and blast method main tunnel scheme, the construction period of the drill and blast method inclined shaft auxiliary construction scheme, and the construction period of the non-explosive excavation scheme according to the footage of the drill and blast method main tunnel of the matching project.

[0029] Embodiment 2: This embodiment provides a system for determining the route selection of a mountain highway over-the-mountain tunnel, which is used to implement the method for determining the route selection of a mountain highway over-the-mountain tunnel described in Embodiment 1. The system includes: A collection module, which is used to collect the basic data of the mountain highway and preprocess the basic data; A calculation and analysis module, which is used to perform elevation calculation analysis and tunnel layout analysis based on the preprocessed basic data to obtain tunnel layout information; An adjustment module, which is used to adjust the tunnel layout information in combination with the auxiliary judgment conditions and the historical scheme database to obtain a tunnel route selection scheme.

[0030] Embodiment 3: This embodiment provides a computer-readable medium, on which a computer program is stored. The computer program, when executed by a processor, can implement a method for determining the route selection of a mountain highway overpass tunnel as described in Embodiment 1. Specifically, the following steps are executed: Step 1, collect the basic data of the mountain highway and preprocess the basic data; Step 2, perform elevation calculation analysis and tunnel layout analysis based on the preprocessed basic data to obtain tunnel layout information; Step 3, combine the auxiliary determination conditions and the historical scheme database to adjust the tunnel layout information to obtain a tunnel route selection scheme.

[0031] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for determining the route selection of a mountain highway tunnel, characterized in that: include: Collect basic data of mountain roads and pre-process the basic data; Based on the pre-processed basic data, the elevation calculation and tunnel layout analysis are performed to obtain the tunnel layout information; The tunnel layout information is adjusted in combination with the auxiliary determination conditions and the historical solution database to obtain a tunnel line selection solution.

2. A method for determining the route selection of a mountain highway tunnel according to claim 1, characterized in that: The basic data include: survey data, geological data, environmental data and special influencing factors; The survey data include: data of residents along the route, the current status of the old road damage and the snow line elevation; The geological data include: the direction of the fault zone, the distribution range of soluble rocks and the direction of ground stress; The environmental data include: scope of nature reserves, scope of ecological red lines, hydrology, monthly average temperature and monthly average humidity; The special influencing factors include: topography, regional geological data and highway technical grade.

3. A method for determining the route selection of a mountain highway tunnel according to claim 2, characterized in that: The preprocessing includes: cleaning basic data, replacing missing values ​​and abnormal values ​​in the basic data with the mean, median or mode.

4. A method for determining the route selection of a mountain highway tunnel according to claim 2, characterized in that: performing elevation calculation analysis and tunnel layout analysis based on the basic data to obtain tunnel layout information; Included methods: According to the current status of the old road damage, determine the tunnel elevation and preliminary tunnel axis of different linear schemes, and calculate the number of ice and snow weather days for tunnels of different linear schemes based on the snow line elevation; According to the existing status of the old road damage, the tunnel elevation and preliminary tunnel axis of different linear schemes are determined; The method includes: determining the old road damage points according to the current status of the old road damage; Based on the diseased points of the old road, the tunnel elevations and preliminary tunnel axes of different route selection schemes are determined according to the bypass conditions; The avoidance conditions include: for the low-line scheme, avoid all the old road disease points; for the middle-line scheme, avoid the old road disease points in the first range; for the high-line scheme, avoid the old road disease points in the second range; wherein the elevation of the old road disease points in the first range is less than the elevation of the old road disease points in the second range; The main layout of the tunnel is determined based on the data of residents along the route, the direction of the fault zone, the distribution range of soluble rocks and the direction of ground stress; Output the main tunnel layout, tunnel elevation, preliminary tunnel axis and number of days with ice and snow weather.

5. A method for determining the route selection of a mountain highway tunnel according to claim 4, characterized in that: The main layout of the tunnel is determined according to the data of residents along the line, the direction of the fault zone, the distribution range of soluble rocks and the direction of ground stress; Included methods: Determine whether the corresponding tunnel body is exposed based on the data of residents along the line. When the number of residents along the line exceeds the threshold of the number of residents, the corresponding tunnel body is exposed; otherwise, the corresponding tunnel body is not exposed. According to the direction of the fault zone, the corresponding tunnel body is made to intersect the intersecting fault zone as vertically as possible, so that the length of the corresponding tunnel body crossing the fault zone is the shortest; According to the distribution range of soluble rocks, the corresponding tunnel body is made to intersect the soluble rock belt as vertically as possible, so that the length of the corresponding tunnel body passing through the soluble rock belt is the shortest; According to the direction of ground stress, the axis of the corresponding tunnel body is made to intersect with the tunnel body at a small angle.

6. A method for determining the route selection of a mountain highway tunnel according to claim 4, characterized in that: The tunnel elevation and preliminary tunnel axis of different line selection schemes are determined based on the disease points of the old road according to the bypass conditions; Included methods: Count the elevations of all the old road disease points, and take the elevation H of the highest old road disease point as the max As the boundary, it is divided into the direction of small pile number and the direction of large pile number; Get the elevation of each old road disease point in the direction of the small pile number, from high to low {A 1、 A 2、 A3.....A n }; Get the direction of the large pile number Count the elevations of the diseased points on the old road, from high to low {B 1、 B 2、 B3.....B n }; {A1-N, A1} is the first small elevation range, N represents the elevation range parameter, and within the first small elevation range, the tunnel entrance elevation is selected as the tunnel entrance elevation of the low-line scheme in combination with the topographic map, denoted as H 低进 ; Take {B1-N, B1} as the first largest elevation range, and select the tunnel entrance elevation as the tunnel exit elevation of the low-line solution in combination with the topographic map within the first largest elevation range, calculated as H 低出 ; Connecting tunnel entrance elevation H 低进 and tunnel exit elevation H 低出 Get the preliminary tunnel axis of the low-line solution; ={A1+1 / 3(A n -A1)-N, A1+1 / 3(A n -A1)} is the second smallest elevation range. In the second smallest elevation range, the tunnel entrance elevation is selected as the tunnel entrance elevation of the centerline solution in combination with the topographic map, denoted as H 低进 ; {B1+1 / 3(B n -B1)-N, B1+1 / 3(B n -B1)} is the second largest elevation range. In the second largest elevation range, the tunnel entrance elevation is selected as the tunnel exit elevation of the centerline solution in combination with the topographic map, calculated as H 中出 ; Connecting tunnel entrance elevation H 中进 and tunnel exit elevation H 中出 Get the preliminary tunnel axis; Connecting tunnel entrance elevation H 中进 and tunnel exit elevation H 中出 Get the preliminary tunnel axis of the centerline solution; ={A1+2 / 3(A n -A1) -N, A1+2 / 3(A n -A1)} is the third smallest elevation range. In the third smallest elevation range, the tunnel entrance elevation is selected as the tunnel entrance elevation of the high-line scheme in combination with the topographic map, denoted as H 高进 ; {B1+2 / 3(B n -B1)-50, B1+2 / 3(B n -B1)} is the third largest elevation range. In the third largest elevation range, the tunnel entrance elevation is selected as the tunnel exit elevation of the high-line solution in combination with the topographic map, calculated as H 高出 ; Connecting tunnel entrance elevation H 高进 and tunnel exit elevation H 高出 Get the preliminary tunnel axis; Connecting tunnel entrance elevation H 高进 and tunnel exit elevation H 高出 Obtain the preliminary tunnel axis of the centerline solution.

7. A method for determining the route selection of a mountain highway tunnel according to claim 1, characterized in that: The tunnel layout information is adjusted by combining the auxiliary determination conditions and the historical solution database to determine the tunnel axis solution; Included methods: Obtain the auxiliary judgment conditions of the tunnel, search for a reference solution that matches the tunnel layout information in the built learning solution database, and adjust the preliminary tunnel axis; The auxiliary judgment conditions of the tunnel include: construction period requirements, section requirements, environmental constraints, ventilation calculation parameters, and whether there are existing structures on the top of the tunnel.

8. A method for determining the route selection of a mountain highway tunnel according to claim 7, characterized in that: The reference schemes include: TBM main tunnel scheme, TBM horizontal pilot scheme, drilling and blasting scheme, drilling and blasting auxiliary well construction scheme and non-explosive excavation scheme.

9. A system for determining the route selection of a mountain highway tunnel, characterized in that: A method for determining a route selection for a mountain highway tunnel crossing a mountain range according to any one of claims 1 to 8, the system comprising: A collection module, used for collecting basic data of mountain roads and preprocessing the basic data; The calculation and analysis module is used to perform elevation calculation and analysis and tunnel layout analysis based on the pre-processed basic data to obtain tunnel layout information; The adjustment module is used to adjust the tunnel layout information in combination with the auxiliary determination conditions and the historical solution database to obtain a tunnel line selection solution.

10. A computer readable medium having a computer program stored thereon, characterized in that: The computer program is executed by a processor to implement a method for determining a route for a mountain highway tunnel crossing a mountain range as described in any one of claims 1 to 8.

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