Automatic design method for plane design center line and construction center line of subway curve tunnel

Abstract

The invention discloses an automatic design method for a plane design center line and a construction center line of a subway curve tunnel, and relates to the technical field of rail traffic tunnel line design. Line mileage data, plane curve data and tunnel inner diameter data are read, and the rail structure height in the tunnel, the corresponding line mileage range and the rail ultrahigh value are input; after the rolling circle spacing is input, the horizontal offset between the plane design center line of the subway curve tunnel and the actual construction center line is automatically calculated, and the actual construction center line of the subway curve tunnel is automatically drawn and marked according to the horizontal offset. Data collection and arrangement and horizontal offset calculation are automatically completed on the computer, the actual construction center line of the subway curve tunnel is automatically drawn and marked, a large number of steps needing manual operation are converted into computer automatic operation, and the production efficiency and the design quality are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of rail transit tunnel design technology, specifically to an automatic design method for the centerline of a subway curved tunnel in plan view and during construction. Background Technology

[0002] Currently, when rail transit designers create drawings showing the relationship between the plan design centerline and the actual construction centerline of a subway curved tunnel, the process involves several steps. First, they manually compile track data, matching the track superelevation and track structure height for each curved tunnel segment based on the line mileage. Then, they manually calculate the horizontal offset between the plan design centerline and the actual construction centerline for each segment. Next, they manually draw the actual construction centerline in the plan design file based on this horizontal offset. Finally, they label the plan design centerline, the actual construction centerline, and the offset for each curved tunnel segment.

[0003] The above tasks require organizing track data, measuring mileage, editing polylines, text, and aligning labeled objects. These tasks involve a large number of manual operations, are time-consuming, require designers to perform a lot of repetitive work, waste productivity, and reduce production efficiency. Summary of the Invention

[0004] To address one or more shortcomings of the existing technologies, this invention provides an automatic design method for the centerline of the planar design and the construction centerline of a subway curved tunnel. This method can automate the design of the centerline of the planar design and the actual construction centerline of the subway curved tunnel, significantly improving work efficiency and solving the problems of long manual operation and low production efficiency in existing design methods.

[0005] To achieve the above objectives, the present invention adopts one or more of the following technical solutions:

[0006] An automatic design method for the centerline of a subway curved tunnel in plan view and during construction includes the following steps:

[0007] S1. Run the AutoCAD secondary development program to automatically open the AutoCAD application software;

[0008] S2. Open the subway curved tunnel plan design scheme file and automatically read the line mileage data, plan curve data and tunnel inner diameter data in the subway curved tunnel plan design scheme file;

[0009] S3. Input and store the height of the track structure inside the tunnel and the corresponding line mileage range; the line mileage range is represented by selecting the starting mileage and the ending mileage based on the line mileage data; the height of the track structure inside the tunnel is input in segments according to different line mileage ranges.

[0010] S4. Set the track superelevation value for each section of the subway curved tunnel according to the subway curved tunnel plan design scheme; the number and sequence of the subway curved tunnels are determined according to the plan curve data;

[0011] S5. Input the rolling circle spacing to automatically calculate the horizontal offset between the centerline of the subway curved tunnel plan design and the actual construction centerline.

[0012] S6. Based on the horizontal offset between the centerline of the subway curved tunnel plan design and the actual construction centerline, automatically draw the actual construction centerline of the subway curved tunnel. The actual construction centerline of the subway curved tunnel is obtained by horizontally offsetting the centerline of the tunnel plan design inward by the horizontal offset.

[0013] S7. Automatically annotate the centerline of the plan design, the centerline of the actual construction, and the offset of each section of the subway curved tunnel, and complete the automated design of the centerline of the plan design and the centerline of the actual construction of the subway curved tunnel.

[0014] Preferably, in step S2, the line mileage data includes the mileage of any point on the line in the planar design of the subway curved tunnel; the planar curve data includes the coordinates, mileage, and curve number of the curve feature points on the line in the planar design of the subway curved tunnel; the curve feature points on the line in the planar design of the subway curved tunnel include straight-to-curve points, curve-to-round points, round-to-curve points, and curve-to-straight points.

[0015] Preferably, in step S2, the subway curved tunnel is a circular tunnel or a horseshoe-shaped tunnel.

[0016] Preferably, in step S3, the height of the track structure inside the subway tunnel and the corresponding line mileage range are input by importing a standardized data format file.

[0017] Preferably, in step S5, the horizontal offset between the centerline of the subway curved tunnel plan design and the actual construction centerline is automatically calculated by the AutoCAD secondary development program according to the following formula:

[0018] d = h0 × h / s

[0019] Where h0 is the vertical distance from the subway tunnel to the top surface of the track, which is calculated by subtracting the track structure height from half of the tunnel inner diameter data; h is the track superelevation value; and s is the rolling circle spacing.

[0020] Preferably, in step S6, each section of the subway curved tunnel can be further divided into three segments based on the curve feature points of the centerline of the subway tunnel plan design: the straight-to-curved point segment, the curved-to-curved point segment, and the curved-to-straight point segment.

[0021] Preferably, the step of automatically drawing the actual construction centerline of the subway curved tunnel based on the horizontal offset between the designed centerline and the actual construction centerline specifically involves:

[0022] S61. Based on the horizontal offset of the tunnel plan design centerline, automatically draw the actual construction centerline of the section from the straight-to-curved point to the rounded point of the subway curved tunnel.

[0023] S62. Based on the horizontal offset of the tunnel plan design centerline, automatically draw the actual construction centerline of the subway curved tunnel from the gentle curve point to the gentle curve point.

[0024] S63. Based on the horizontal offset of the tunnel plan design centerline, automatically draw the actual construction centerline of the section from the rounded point to the straightened point of the subway curved tunnel.

[0025] Preferably, in step S61, the horizontal offset of the straight-to-curve point in the section from the straight-to-curve point to the curve point in the subway curved tunnel is 0, the horizontal offset of the curve point is the horizontal offset d mentioned in step S5, and the horizontal offset of any point in the section from the straight-to-curve point to the curve point is automatically calculated by the AutoCAD secondary development program using the following formula:

[0026] d ′ =d×(LL) HY ) / (L ZH -L HY )

[0027] Where L is the mileage of any point on the tunnel's horizontal alignment, obtained from the aforementioned route mileage data; L ZH This refers to the corresponding mileage of the straight-and-curve points on the tunnel's horizontal alignment; L HY The corresponding mileage of the gentle circle point on the tunnel's horizontal design line is obtained based on the aforementioned horizontal curve data;

[0028] In step S62, the horizontal offset of any point in the section from the gentle curve point to the gentle curve point of the subway curved tunnel is d;

[0029] In step S63, the horizontal offset of the point between the straight and gentle curves in the subway curved tunnel segment is the horizontal offset d mentioned in step S5, the horizontal offset of the straight curve is 0, and the horizontal offset of any point between the gentle curve and the straight curve is automatically calculated by the AutoCAD secondary development program using the following formula:

[0030] d″=d×(LL YH ) / (L HZ -L YH )

[0031] Where L is the mileage of any point on the tunnel's horizontal alignment, obtained from the aforementioned route mileage data; L YHL represents the corresponding mileage of the curve point on the tunnel's horizontal alignment. HZ The corresponding mileage of the gradual straightening point on the tunnel's horizontal design centerline is obtained based on the aforementioned horizontal curve data.

[0032] Preferably, in step S7, the planar design centerline, the actual construction centerline, and the offset annotation style are applied by automatically reading the AutoCAD annotation style file through the program.

[0033] This invention also provides an automatic design system for the centerline of subway curved tunnel plan design and construction centerline, the system comprising:

[0034] The software runtime module is used to run AutoCAD secondary development programs and automatically open the AutoCAD application software.

[0035] The data reading module is used to open the subway curved tunnel plan design scheme file and automatically read the line mileage data, plan curve data and tunnel inner diameter data in the subway curved tunnel plan design scheme file;

[0036] The subway curved tunnel data input module is used to input and store the height of the track structure inside the tunnel and the corresponding line mileage range; the line mileage range is represented by selecting the starting mileage and the ending mileage based on the line mileage data; the height of the track structure inside the tunnel is input in segments according to different line mileage ranges.

[0037] The subway curved tunnel data design module is used to set the track superelevation value for each segment of the subway curved tunnel according to the subway curved tunnel plan design scheme; the number and order of the subway curved tunnels are determined according to the plan curve data;

[0038] The calculation module is used to input the rolling circle spacing and automatically calculate the horizontal offset between the centerline of the subway curved tunnel plan design and the actual construction centerline;

[0039] The actual construction centerline drawing module for a subway curved tunnel is used to automatically draw the actual construction centerline of the subway curved tunnel based on the horizontal offset between the centerline of the subway curved tunnel plan design and the actual construction centerline. The actual construction centerline of the subway curved tunnel is obtained by horizontally offsetting the centerline of the tunnel plan design inward by the horizontal offset.

[0040] The automatic annotation module is used to automatically annotate the centerline of the plan design, the actual construction centerline, and the offset of each section of the subway curved tunnel, thus completing the automated design of the centerline of the subway curved tunnel plan design and the actual construction centerline.

[0041] The present invention also provides a computer program product, the computer program product comprising a computer program that can be stored on a non-transitory computer-readable storage medium, and when the computer program is executed by a processor, the computer is able to execute an automatic design method for the centerline of the plane design and construction centerline of a subway curved tunnel as described in any of the above claims.

[0042] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the automatic design method for the centerline of the plane design and construction centerline of a subway curved tunnel as described in any of the preceding claims.

[0043] By adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0044] 1. The automatic design method for the centerline of the plan design and construction centerline of the subway curved tunnel provided by this invention can automatically acquire and organize the plan design data of the subway curved tunnel based on the AutoCAD secondary development program, digitally manage and store data such as track structure height and track superelevation, automatically calculate the horizontal offset between the actual construction centerline and the plan design centerline of the subway curved tunnel, and automatically draw the actual construction centerline in the subway curved tunnel plan design scheme file based on the horizontal offset. Finally, the plan design centerline, the actual construction centerline and the offset are automatically labeled, thereby realizing the automated design of the plan design centerline and the actual construction centerline of the subway curved tunnel. This avoids designers from performing a large number of repetitive editing operations in the CAD model space, shortens the operation time, liberates labor productivity, and greatly improves production efficiency and design quality.

[0045] 2. This invention achieves automatic acquisition and organization of professional design data for subway curved tunnels by reading line mileage data, plane curve data, and tunnel inner diameter data, as well as digital management and storage of track structure height and track superelevation data within subway tunnels. This replaces the traditional manual collection and verification of data, greatly improving the level of digitalization and intelligence, and effectively ensuring data accuracy.

[0046] 3. This invention automatically matches each section of the subway curved tunnel with the line mileage data, automatically calculates the horizontal offset between the centerline of the subway curved tunnel in the plan design and the actual construction centerline, and uses interpolation to calculate the horizontal offset of the section from the straight-to-curved point to the curved-to-round point and the section from the round-to-curved point to the curved-to-straight point in batches, which effectively improves the calculation efficiency and accuracy.

[0047] 4. For a certain subway line with 92 curved tunnels, if the existing production method is used, it would take about 184 working days to complete the design of the centerline of the curved tunnel plan and the actual construction centerline by manual processing. However, if the method and embodiment described in this invention are used, it can be completed in only 10 working days, which greatly improves the production efficiency. Attached Figure Description

[0048] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0049] Figure 1 This is a flowchart of the automatic design method for the centerline of the subway curved tunnel in plane design and construction, according to Embodiment 1 of the present invention.

[0050] Figure 2 This is a partial design drawing of the centerline of the subway curved tunnel in the first embodiment of the present invention, showing the centerline of the plan design and the construction centerline.

[0051] Figure 3 This is a system structure diagram of Embodiment 2 of the present invention. Detailed Implementation

[0052] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0053] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0054] Example 1

[0055] In one typical embodiment of this application, an automatic design method for the centerline of a subway curved tunnel in plan view and during construction is provided, such as... Figure 1-2 As shown, it includes:

[0056] S1. Run the AutoCAD secondary development program and open the AutoCAD application software.

[0057] Specifically, the AutoCAD secondary development program references the AutoCAD.NET API interface file, which can recognize AutoCAD files including dwg, dws, dwt, and dxf formats, and read file database information.

[0058] S2. Open the subway curved tunnel plan design file and read the line mileage data, plan curve data and tunnel inner diameter data.

[0059] Specifically, the line mileage data, plane curve data, and tunnel inner diameter data are directly read from the dwg, dws, dwt, and dxf format files of the subway curve tunnel plane design scheme by the AutoCAD secondary development program described in step S1.

[0060] Specifically, the line mileage data includes the mileage of any point on the line in the horizontal design of the subway curved tunnel; the horizontal curve data includes the coordinates, mileage, and curve number of the curve feature points on the horizontal design of the subway curved tunnel. Specifically, the curve feature points on the horizontal design of the subway curved tunnel include straight-to-curve points, curve-to-round points, round-to-curve points, and curve-to-straight points.

[0061] Specifically, the curved tunnel in the proposed subway tunnel plan design is a circular tunnel or a horseshoe-shaped tunnel.

[0062] S3. Input and store the height of the track structure inside the tunnel and the corresponding line mileage range; the line mileage range is represented by selecting the starting mileage and the ending mileage according to the line mileage data in step S2; the height of the track structure inside the tunnel is input in segments according to different line mileage ranges.

[0063] Specifically, the height of the track structure inside the subway tunnel and the corresponding line mileage range are input by importing a standardized data format file.

[0064] S4. Set the track superelevation value for each section of the subway curved tunnel according to the subway curved tunnel plan design scheme; the number and sequence of the subway curved tunnels are determined according to the plan curve data in step S2.

[0065] S5. Input the rolling circle spacing to automatically calculate the horizontal offset between the centerline of the subway curved tunnel plan design and the actual construction centerline.

[0066] Specifically, the horizontal offset d between the centerline of the subway curved tunnel plan design and the actual construction centerline is automatically calculated by the AutoCAD secondary development program described in step S1 according to the following formula:

[0067] d = h0 × h / s

[0068] Where h0 is the vertical distance from the subway tunnel to the top surface of the track, which is calculated by subtracting the track structure height mentioned in step S3 from half of the tunnel inner diameter in step S2; h is the track superelevation value; and s is the rolling circle spacing.

[0069] S6. Based on the horizontal offset between the centerline of the subway curved tunnel plan design and the actual construction centerline described in step S5, automatically draw the actual construction centerline of the subway curved tunnel; the actual construction centerline of the subway curved tunnel is obtained by horizontally offsetting the centerline of the tunnel plan design inward by the horizontal offset.

[0070] Specifically, in step S6, each section of the subway curved tunnel can be further divided into three segments based on the curve feature points of the centerline of the subway tunnel plan design: the straight-to-curved point segment, the curved-to-curved point segment, and the curved-to-straight point segment.

[0071] Furthermore, the specific steps of step S6 are as follows:

[0072] S61. Based on the horizontal offset of the tunnel plan design centerline, automatically draw the actual construction centerline of the section from the straight-to-curved point to the rounded point of the subway curved tunnel.

[0073] Reference Figure 2 In the section from the straight-to-curve point to the round-off point of the subway curved tunnel, the horizontal offset of the straight-to-curve point is 0, and the horizontal offset of the round-off point is the horizontal offset d described in step S5. The horizontal offset d at any point in the section from the straight-to-curve point to the round-off point is... ′ The AutoCAD secondary development program described in step S1 then automatically calculates the result using the following formula:

[0074] d ′ =d×(LL) HY ) / (L ZH -L HY )

[0075] Where L is the mileage of any point on the tunnel's horizontal alignment, which can be obtained from the line mileage data described in step S2; L ZH L represents the corresponding mileage of the straight-and-gradient point on the tunnel's horizontal alignment. HY The corresponding mileage of the gentle circle point on the tunnel's horizontal design line can be obtained from the horizontal curve data described in step S2.

[0076] S62. Based on the horizontal offset of the tunnel plan design centerline, automatically draw the actual construction centerline of the subway curved tunnel from the gentle curve point to the gentle curve point.

[0077] Specifically, the horizontal offset of any point in the section from the transition point to the transition point of the subway curved tunnel is d;

[0078] S63. Based on the horizontal offset of the tunnel plan design centerline, automatically draw the actual construction centerline of the section from the rounded point to the straightened point of the subway curved tunnel.

[0079] Specifically, in the section from the rounded point to the straight point in the subway curved tunnel, the rounded point is defined by the horizontal offset d mentioned in step S5, the straight point has a horizontal offset of 0, and the horizontal offset d″ of any point in the section from the rounded point to the straight point is automatically calculated by the AutoCAD secondary development program in step S1 using the following formula:

[0080] d″=d×(LL YH ) / (L HZ -L YH );

[0081] Where L is the mileage of any point on the tunnel's horizontal alignment, which can be obtained from the line mileage data described in step S2; L YH L represents the corresponding mileage of the curve point on the tunnel's horizontal alignment. HZ The corresponding mileage of the transition point on the tunnel's horizontal design line can be obtained from the horizontal curve data described in step S2.

[0082] S7. Automatically annotate the centerline of the plan design, the centerline of the actual construction, and the offset of each section of the subway curved tunnel, and complete the automated design of the centerline of the plan design and the centerline of the actual construction of the subway curved tunnel.

[0083] Specifically, the centerline of the planar design, the centerline of the actual construction, and the offset annotation style can be applied by automatically reading the AutoCAD annotation style file through the program.

[0084] Example 2

[0085] In another typical embodiment of the present invention, an automatic design system for the centerline of the plane design and construction centerline of a subway curved tunnel is provided. See [link to documentation]. Figure 3 The system includes:

[0086] The software runtime module is used to run AutoCAD secondary development programs and automatically open the AutoCAD application software.

[0087] The data reading module is used to open the subway curved tunnel plan design scheme file and automatically read the line mileage data, plan curve data and tunnel inner diameter data in the subway curved tunnel plan design scheme file;

[0088] The subway curved tunnel data input module is used to input and store the height of the track structure inside the tunnel and the corresponding line mileage range; the line mileage range is represented by selecting the starting mileage and the ending mileage based on the line mileage data; the height of the track structure inside the tunnel is input in segments according to different line mileage ranges.

[0089] The subway curved tunnel data design module is used to set the track superelevation value for each segment of the subway curved tunnel according to the subway curved tunnel plan design scheme; the number and order of the subway curved tunnels are determined according to the plan curve data;

[0090] The calculation module is used to input the rolling circle spacing and automatically calculate the horizontal offset between the centerline of the subway curved tunnel plan design and the actual construction centerline;

[0091] The actual construction centerline drawing module for a subway curved tunnel is used to automatically draw the actual construction centerline of the subway curved tunnel based on the horizontal offset between the centerline of the subway curved tunnel plan design and the actual construction centerline. The actual construction centerline of the subway curved tunnel is obtained by horizontally offsetting the centerline of the tunnel plan design inward by the horizontal offset.

[0092] The automatic annotation module is used to automatically annotate the centerline of the plan design, the actual construction centerline, and the offset of each section of the subway curved tunnel, thus completing the automated design of the centerline of the subway curved tunnel plan design and the actual construction centerline.

[0093] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer is able to execute an automatic design method for the centerline of the plane design and construction centerline of a subway curved tunnel provided in Embodiment 1.

[0094] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements an automatic design method for the centerline of a subway curved tunnel in plan design and construction, as provided in Embodiment 1.

[0095] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Those skilled in the art should understand that the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic design method for the centerline of a subway curved tunnel in plan view and during construction, characterized in that, Includes the following steps: S1. Run the AutoCAD secondary development program to automatically open the AutoCAD application software; S2. Open the subway curved tunnel plan design scheme file and automatically read the line mileage data, plan curve data and tunnel inner diameter data in the subway curved tunnel plan design scheme file; S3. Input and store the height of the track structure inside the tunnel and the corresponding line mileage range; the line mileage range is represented by selecting the starting mileage and the ending mileage based on the line mileage data; the height of the track structure inside the tunnel is input in segments according to different line mileage ranges. S4. Set the track superelevation value for each section of the subway curved tunnel according to the subway curved tunnel plan design scheme; the number and sequence of the subway curved tunnels are determined according to the plan curve data; S5. Input the rolling circle spacing to automatically calculate the horizontal offset between the centerline of the subway curved tunnel plan design and the actual construction centerline. S6. Based on the horizontal offset between the centerline of the subway curved tunnel plan design and the actual construction centerline, automatically draw the actual construction centerline of the subway curved tunnel. The actual construction centerline of the subway curved tunnel is obtained by horizontally offsetting the centerline of the tunnel plan design inward by the horizontal offset. S7. Automatically annotate the centerline of the plan design, the centerline of the actual construction, and the offset of each section of the subway curved tunnel, and complete the automated design of the centerline of the plan design and the centerline of the actual construction of the subway curved tunnel.

2. The automatic design method for the centerline of a subway curved tunnel in plan view and construction centerline as described in claim 1, characterized in that, In step S2, the line mileage data includes the mileage of any point on the line in the plane design of the subway curved tunnel; the plane curve data includes the coordinates, mileage, and curve number of the curve feature points on the plane design of the subway curved tunnel; the curve feature points on the plane design of the subway curved tunnel include straight-to-curve points, curve-to-round points, round-to-curve points, and curve-to-straight points.

3. The automatic design method for the centerline of a subway curved tunnel in plan view and construction centerline as described in claim 1, characterized in that, In step S3, the height of the track structure inside the subway tunnel and the corresponding line mileage range are input by importing a standardized data format file.

4. The automatic design method for the centerline of a subway curved tunnel in plan view and construction centerline as described in claim 1, characterized in that, In step S5, the horizontal offset between the centerline of the subway curved tunnel plan design and the actual construction centerline is automatically calculated by the AutoCAD secondary development program according to the following formula: d = h0 × h / s Where h0 is the vertical distance from the subway tunnel to the top surface of the track, which is calculated by subtracting the track structure height from half of the tunnel inner diameter data; h is the track superelevation value; and s is the rolling circle spacing.

5. The automatic design method for the centerline of a subway curved tunnel in plan view and construction centerline as described in claim 1, characterized in that, In step S6, each section of the subway curved tunnel can be further divided into three segments based on the curve feature points of the centerline of the subway tunnel plan design: the straight-to-curved point segment, the curved-to-curved point segment, and the curved-to-straight point segment.

6. The automatic design method for the centerline of a subway curved tunnel in plan view and construction centerline as described in claim 5, characterized in that, The automatic drawing of the actual construction centerline of the subway curved tunnel based on the horizontal offset between the designed centerline and the actual construction centerline is as follows: S61. Based on the horizontal offset of the tunnel plan design centerline, automatically draw the actual construction centerline of the section from the straight-to-curved point to the rounded point of the subway curved tunnel. S62. Based on the horizontal offset of the tunnel plan design centerline, automatically draw the actual construction centerline of the subway curved tunnel from the gentle curve point to the gentle curve point. S63. Based on the horizontal offset of the tunnel plan design centerline, automatically draw the actual construction centerline of the section from the rounded point to the straightened point of the subway curved tunnel.

7. The automatic design method for the centerline of the plane design and construction centerline of a subway curved tunnel as described in claim 6, characterized in that... : In step S61, the horizontal offset of the straight-to-curve point in the section from the straight-to-curve point to the curve point in the subway tunnel is 0, and the horizontal offset of the curve point is the horizontal offset d mentioned in step S5. The horizontal offset of any point in the section from the straight-to-curve point to the curve point is automatically calculated by the AutoCAD secondary development program using the following formula: d ′ =d×(LL HY ) / (L ZH -L HY ) Where L is the mileage of any point on the tunnel's horizontal alignment, obtained from the aforementioned route mileage data; L ZH This refers to the corresponding mileage of the straight-and-curve points on the tunnel's horizontal alignment; L HY The corresponding mileage of the gentle circle point on the tunnel's horizontal design line is obtained based on the aforementioned horizontal curve data; In step S62, the horizontal offset of any point in the section from the gentle curve point to the gentle curve point of the subway curved tunnel is d; In step S63, the horizontal offset of the point between the straight and gentle curves in the subway curved tunnel segment is the horizontal offset d mentioned in step S5, the horizontal offset of the straight curve is 0, and the horizontal offset of any point between the gentle curve and the straight curve is automatically calculated by the AutoCAD secondary development program using the following formula: d″=d×(LL YH ) / (L HZ -L YH ) Where L is the mileage of any point on the tunnel's horizontal alignment, obtained from the aforementioned route mileage data; L YH L represents the corresponding mileage of the curve point on the tunnel's horizontal alignment. HZ The corresponding mileage of the gradual straightening point on the tunnel's horizontal design centerline is obtained based on the aforementioned horizontal curve data.

8. An automatic design system for the centerline of a subway curved tunnel in plan view and during construction, characterized in that, The system includes: The software runtime module is used to run AutoCAD secondary development programs and automatically open the AutoCAD application software. The data reading module is used to open the subway curved tunnel plan design scheme file and automatically read the line mileage data, plan curve data and tunnel inner diameter data in the subway curved tunnel plan design scheme file; The subway curved tunnel data input module is used to input and store the height of the track structure inside the tunnel and the corresponding line mileage range; the line mileage range is represented by selecting the starting mileage and the ending mileage based on the line mileage data; the height of the track structure inside the tunnel is input in segments according to different line mileage ranges. The subway curved tunnel data design module is used to set the track superelevation value for each segment of the subway curved tunnel according to the subway curved tunnel plan design scheme; the number and order of the subway curved tunnels are determined according to the plan curve data; The calculation module is used to input the rolling circle spacing and automatically calculate the horizontal offset between the centerline of the subway curved tunnel plan design and the actual construction centerline; The actual construction centerline drawing module for a subway curved tunnel is used to automatically draw the actual construction centerline of the subway curved tunnel based on the horizontal offset between the centerline of the subway curved tunnel plan design and the actual construction centerline. The actual construction centerline of the subway curved tunnel is obtained by horizontally offsetting the centerline of the tunnel plan design inward by the horizontal offset. The automatic annotation module is used to automatically annotate the centerline of the plan design, the actual construction centerline, and the offset of each section of the subway curved tunnel, thus completing the automated design of the centerline of the subway curved tunnel plan design and the actual construction centerline.

9. A computer program product, the computer program product comprising a computer program, the computer program being storeable on a non-transitory computer-readable storage medium, characterized in that, When the computer program is executed by the processor, the computer is able to perform an automatic design method for the centerline of the plane design and construction centerline of a subway curved tunnel as described in any one of claims 1-7.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the automatic design method for the centerline of the subway curved tunnel in plan design and construction as described in any one of claims 1-7.

Images