Automatic design and plotting method for rail transit shield interval evacuation platform

Abstract

The invention discloses a rail transit shield interval evacuation platform automatic design and plotting method, which comprises the following steps: reading shield interval tunnel line design scheme data and tunnel inner diameter data, determining an evacuation platform and step ladder design range, segmenting the evacuation platform and step ladder design range, calculating the design length in a segmented manner, reading the radius of a circular curve segment, and calculating the design length of the evacuation platform and step ladder design range; the method comprises the following steps: calculating evacuation platform size data in a segmented manner, automatically drawing and marking an evacuation platform plane and / or an evacuation platform step plane in a segmented manner, calculating the area of the evacuation platform in a segmented manner, matching the section type and the corresponding material of each section of the evacuation platform, inserting a section schematic diagram and a design description, and finally automatically generating an evacuation platform size table. And automatic drawing output of the rail transit shield interval evacuation platform is completed. The method is written into an AutoCAD secondary development program, automatic design and drawing and digital management and storage of tunnel track structure and evacuation platform design parameters are achieved, and design efficiency and data accuracy are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of rail transit building design technology, specifically to an automatic design and drawing method for evacuation platforms in rail transit shield tunnel sections. Background Technology

[0002] Currently, when rail transit designers design and draw up evacuation platforms for tunnel sections, they typically follow these steps:

[0003] First, the route plan and tunnel data need to be organized. Based on the route curve data, the evacuation platform of the shield tunnel section is divided into segments, and the corresponding cross-section type, material type, track professional data and evacuation platform design parameters of each evacuation platform are matched.

[0004] Then, based on the calculated evacuation platform size data, the tunnel evacuation platform of each shield section, as well as the steps at both ends of the platform, are manually drawn in the AutoCAD rail transit shield section evacuation platform plan drawing, and the names and mileage are marked.

[0005] At the same time, it is also necessary to calculate the segment length and area of ​​the evacuation platform, create and fill in the evacuation platform dimension table, and finally create and edit the drawing frame, viewport, design description, and cross-sectional schematic diagram.

[0006] The above process involves a large amount of data processing, measurement, drawing, and editing. Currently, most of these tasks are performed by designers, which is extremely labor-intensive and time-consuming. In addition, it involves a lot of repetitive work, which wastes productivity and is prone to accidental errors, resulting in poor drawing accuracy and low production efficiency. Summary of the Invention

[0007] In view of one or more shortcomings of the existing technology, the present invention provides an automatic design and drawing method for evacuation platforms in tunnel sections of rail transit, which realizes the automation of the design and drawing process and greatly improves the efficiency and accuracy of design and drawing.

[0008] To achieve the above objectives, the present invention adopts one or more of the following technical solutions:

[0009] Firstly, a method for automatically designing and generating drawings of evacuation platforms in tunnel sections of rail transit is provided, including the following steps:

[0010] S1. Run the AutoCAD secondary development program and open the AutoCAD application software;

[0011] S2. Open the plan design file of the shield tunnel section of the rail transit, and read the shield tunnel section line design data and tunnel inner diameter data.

[0012] S3. Input the length of the evacuation platform stairs, and determine the design range of the evacuation platform and stairs according to the shield tunnel section line design scheme data;

[0013] S4. Automatically segment the design range of evacuation platforms and staircases, calculate the design length of each segment, read the radius of the circular curve segment, obtain the segment data, and store it.

[0014] S5. Input the professional data of the shield tunnel section track and the design parameters of the evacuation platform, calculate the size data of the evacuation platform in segments based on the segmented data and the tunnel inner diameter data, and store it.

[0015] S6. Based on the design range of the evacuation platform and stairs and the size data of the evacuation platform, automatically segment and draw the evacuation platform plane and / or the evacuation platform stairs plane and label them;

[0016] S7. Automatically calculate the area of ​​the evacuation platform in segments and match the cross-sectional type and corresponding material of each segment of the evacuation platform.

[0017] S8. Automatically arrange the drawing frame and align the viewport, insert the cross-sectional schematic diagram and design description;

[0018] S9. Automatically generate evacuation platform dimension table and complete the automatic drawing of evacuation platform in the shield tunnel section of rail transit.

[0019] Preferably, in step S2, the plan design file of the rail transit shield tunnel section is a dwg, dws, dwt, or dxf format file, and the AutoCAD secondary development program is used to automatically read the shield tunnel section line design data.

[0020] Preferably, the shield tunnel section route design data includes route mileage data, horizontal curve data, and chainage break data; the horizontal curve data includes the length and mileage of transition curves and the length, radius, and mileage of circular curves.

[0021] Preferably, in step S3, the evacuation platform stairs are located at both ends of the evacuation platform; the design range of the evacuation platform and stairs is determined by inputting the starting mileage and the ending mileage, wherein the starting mileage is the line mileage at the starting position of the evacuation platform stairs at the small mileage end of the evacuation platform, and the ending mileage is the line mileage at the ending position of the evacuation platform stairs at the large mileage end of the evacuation platform; the line mileage at the starting position of the evacuation platform stairs at the small mileage end of the evacuation platform and the line mileage at the ending position of the evacuation platform stairs at the large mileage end of the evacuation platform are read from the line mileage data.

[0022] Preferably, in step S4, the design range of the evacuation platform and staircase is segmented according to the planar curve data and the broken chain data to obtain the segmentation data.

[0023] Preferably, the segmented data is stored in a two-dimensional array, including the starting mileage, ending mileage, segmented route type, and circular curve radius of each evacuation platform and / or evacuation platform staircase; the segmented route type includes straight segments, transition curve segments, and circular curve segments.

[0024] Preferably, in step S5, the professional data of the shield tunnel section track includes track superelevation value, track structure height, centerline offset and corresponding mileage range, and the design parameters of the evacuation platform include evacuation platform height and construction margin.

[0025] Preferably, the evacuation platform size data is calculated based on the segmented data, and the evacuation platform size data includes the standard clearance distance from the center line of the shield tunnel section to the evacuation platform and the width of the evacuation platform.

[0026] Preferably, in step S6, both the evacuation platform plane and the evacuation platform stair plane include a plane outline and a plane fill. The plane outline is obtained by offsetting the outer outline of the shield tunnel section, and the offset amount is the width of the evacuation platform.

[0027] Preferably, the plane outline and the plane fill style are preset by the AutoCAD secondary development program, including outline width, color, line type, pattern style and pattern scale.

[0028] Preferably, in step S7, the area of ​​the evacuation platform is calculated by multiplying the design length of the evacuation platform and the staircase design range after segmentation by the width of the evacuation platform.

[0029] Preferably, in step S9, the evacuation platform dimension table includes the segmentation data, the evacuation platform dimension data, the evacuation platform area, the evacuation platform cross-sectional type, and the material.

[0030] Secondly, an automatic design and drawing system for evacuation platforms in tunnel sections of rail transit is provided, including:

[0031] The software runtime module is used to run the AutoCAD secondary development program and open the AutoCAD application software;

[0032] The data reading module is used to open the plan design file of the shield tunnel section of rail transit and read the tunnel line design data and tunnel inner diameter data.

[0033] The design scope determination module is used to input the length of the evacuation platform stairs and determine the design scope of the evacuation platform and stairs based on the shield tunnel section line design scheme data.

[0034] The segmentation module is used to automatically segment the design range of evacuation platforms and staircases, calculate the design length of each segment, read the radius of the circular curve segment, obtain segmentation data, and store it.

[0035] The size calculation module is used to input professional data of the tunnel track in the shield section and design parameters of the evacuation platform, calculate the size data of the evacuation platform segment by segment based on the segmented data, and store it.

[0036] The planar drawing module is used to automatically draw and label the evacuation platform plan and / or the evacuation platform stair plan based on the design range of the evacuation platform and the size data of the evacuation platform;

[0037] The segmented area calculation module is used to automatically calculate the area of ​​the evacuation platform in segments and match the cross-sectional type and corresponding material of each segment of the evacuation platform.

[0038] The segmented drawing module is used to automatically arrange the drawing frame and align the viewport, and insert cross-sectional diagrams and design specifications.

[0039] The drawing module is used to automatically generate evacuation platform dimension tables and complete the automatic drawing of evacuation platforms in rail transit shield tunnel sections.

[0040] Thirdly, the present invention also provides a computer device, including a memory and a processor, wherein the memory stores a computer program and the processor is used to run the computer program stored in the memory to perform the steps in the automatic design and drawing method for an evacuation platform in a rail transit shield tunnel section as described in any of the preceding claims.

[0041] Fourthly, the present invention also provides a non-transitory computer-readable storage medium for storing a readable computer program, which, when run by a processor, is capable of executing the steps in the automatic design and drawing method for an evacuation platform in a rail transit shield tunnel section as described in any of the preceding claims.

[0042] By adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0043] 1. The automatic design and drawing method for evacuation platforms in rail transit shield tunnel sections provided by this invention can automatically obtain the design scheme data and inner diameter data of the rail transit shield tunnel section based on the AutoCAD secondary development program, automatically draw the evacuation platform and the evacuation platform step plan in segments and complete the annotation, automatically generate the evacuation platform dimension table and create the drawing frame, viewport, design description and tunnel cross section schematic diagram, realize the automated design and drawing of the evacuation platform plan of rail transit shield tunnel section, and the digital management and storage of tunnel track structure and evacuation platform design parameters. Compared with the traditional manual data verification and sorting method, this invention greatly improves the digitalization and intelligence level of related work, the data accuracy reaches 100%, and the production efficiency is significantly improved.

[0044] 2. This invention can automatically segment and draw the evacuation platform and evacuation platform steps based on the calculated evacuation platform width data, automatically label the evacuation platform and evacuation platform steps of rail transit shield tunnels, realize the automated design of evacuation platforms in rail transit shield tunnel sections, avoid a large number of repetitive editing operations in the CAD model space, reduce the amount of labor and greatly improve design efficiency.

[0045] 3. This invention achieves automatic drawing and insertion of evacuation platform dimension tables through the integration of basic design data, and automatically arranges viewports, drawing frames, tunnel cross sections and design descriptions, thus completing the automatic generation of evacuation platform drawings for rail transit shield tunnel sections. Compared with the traditional manual drawing method, it greatly improves the drawing efficiency and effectively improves the accuracy of data in the drawings. Attached Figure Description

[0046] 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.

[0047] Figure 1 This is a flowchart of an automatic design and drawing method for an evacuation platform in a tunnel section of rail transit, as described in one or more embodiments of the present invention.

[0048] Figure 2 This is a partial design schematic diagram of an evacuation platform in one or more embodiments of the present invention;

[0049] Figure 3 This is a schematic diagram of the cross-section of a shield tunnel section in one or more embodiments of the present invention. Detailed Implementation

[0050] 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.

[0051] 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 scope of exemplary embodiments according to 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.

[0052] Example 1

[0053] In one typical embodiment of this application, an automatic design and drawing method for evacuation platforms in tunnel sections of rail transit is provided, such as... Figures 1-3 As shown, the specific steps are as follows:

[0054] S1. Run the AutoCAD secondary development program and open the AutoCAD application software.

[0055] S2. Open the plan design file of the shield tunnel section of the rail transit, and read the design data of the shield tunnel section line and the inner diameter data of the tunnel.

[0056] Specifically, the plan design files for the shield tunnel section of the rail transit are in dwg, dws, dwt, and dxf formats. The AutoCAD secondary development program in step S1 can be used to automatically read the shield tunnel section line design data.

[0057] In this embodiment, the shield tunnel section of the rail transit is a circular tunnel.

[0058] Specifically, the data for the shield tunnel section route design includes route mileage data, horizontal curve data, and chainage break data. The horizontal curve data includes the length and mileage of transition curves, as well as the length, radius, and mileage of circular curves. All of the above data can be obtained by reading the data using an AutoCAD secondary development program.

[0059] S3. Input the length of the evacuation platform stairs and determine the design range of the evacuation platform and stairs based on the shield tunnel section line design data.

[0060] Specifically, the evacuation platform staircases are located at both ends of the evacuation platform. The design scope of the evacuation platform and staircases in the shield tunnel section of the rail transit is determined by inputting the starting and ending mileages. For example, Figure 2 As shown, the starting mileage is the route mileage at the starting position of the evacuation platform stairs at the small mileage end of the evacuation platform, and the ending mileage is the route mileage at the ending position of the evacuation platform stairs at the large mileage end of the evacuation platform.

[0061] In this embodiment, the route mileage at a specific location can be read from the route mileage data in step S2, thereby obtaining the values ​​of the starting mileage and the ending mileage.

[0062] S4. Automatically segment the design range of evacuation platforms and staircases, calculate the design length of each segment, read the radius of the circular curve segment, obtain the segment data, and store it.

[0063] Specifically, based on the planar curve data and chain break data in step S2, the design range of the evacuation platform and staircase determined in step S3 is segmented to obtain segmented data.

[0064] In this embodiment, the segmented data is stored using a two-dimensional array, including the starting mileage, ending mileage, segmented route type, and circular curve radius for each evacuation platform and / or evacuation platform staircase segment. The segmented route types include straight sections, transition curve sections, and circular curve sections.

[0065] S5. Input the professional data of the shield tunnel track and the design parameters of the evacuation platform. Calculate the evacuation platform size data segment by segment based on the segment data and the tunnel inner diameter data, and store it.

[0066] Specifically, the track engineering data for shield tunnel sections includes track superelevation, track structure height, centerline offset and corresponding mileage range, while the evacuation platform design parameters include evacuation platform height and construction allowance.

[0067] In this embodiment, the evacuation platform size data is obtained by segmented calculation based on the segmented data in step S4 and the tunnel inner diameter data in step S2. The evacuation platform size data includes the standard net distance from the center line of the shield tunnel section to the evacuation platform and the width of the evacuation platform.

[0068] Specifically, the process of calculating the evacuation platform dimensions includes:

[0069] Calculate the distance X between the outer side of the evacuation platform and the centerline of the line using the following formula:

[0070]

[0071] Where r is the tunnel inner diameter, h1 is the track structure height, h2 is the evacuation platform height, d1 is the construction allowance, and d2 is the centerline offset.

[0072] The net distance between the center lines of the tunnel in the straight section is calculated and determined. The value of this net distance is the standard net distance between the center line of the shield tunnel section and the evacuation platform.

[0073] The centerline clearance of the tunnel section of the circular curve is obtained by correcting the radius of the circular curve, the height of the track structure, and the standard clearance from the centerline of the shield tunnel section to the evacuation platform.

[0074] The centerline clearance of the tunnel line in the transition curve section is obtained by linearly transitioning the calculation results of the clearance between the evacuation platforms of the adjacent straight section and the circular curve section.

[0075] Finally, the width of the evacuation platform for the straight section, circular curve section, and transition curve section is calculated separately. It is obtained by subtracting the net distance of the tunnel centerline for each section from the distance X between the outer side of the evacuation platform and the centerline of the line.

[0076] S6. Based on the design scope and dimensional data of the evacuation platform and stairs, automatically segment and draw the evacuation platform plane and / or the evacuation platform stairs plane and label them.

[0077] Specifically, the drawn evacuation platform plane and evacuation platform staircase plane both include a plane outline and a plane fill. The plane outline can be obtained by offsetting the outer outline of the shield tunnel section within the design range of the evacuation platform and staircase in step S3. The offset amount is the width of the evacuation platform in step S5.

[0078] In this embodiment, the styles of the planar outline and the planar fill can be preset by the AutoCAD secondary development program in step S1. The specific settings include outline width, color, line type, pattern style, pattern ratio, etc.

[0079] Specifically, the annotations for the evacuation platform plan and the evacuation platform staircase plan after drawing consist of leader lines and annotation text. The annotation text includes the design start mileage, design end mileage, design start mileage, and design end mileage of the evacuation platform staircase, such as... Figure 2 As shown.

[0080] Specifically, the starting mileage of the evacuation platform design is the starting mileage of the evacuation platform and staircase design range in step S3 plus the length of the evacuation platform and staircases. The ending mileage of the evacuation platform design is the ending mileage of the evacuation platform and staircase design range minus the length of the evacuation platform and staircases. The starting mileage of the evacuation platform and staircase design is the starting mileage of the corresponding evacuation platform and staircase design range, and the ending mileage of the evacuation platform and staircase design is the ending mileage of the evacuation platform and staircase design range.

[0081] In this embodiment, the base point for the annotation location is obtained from the AutoCAD model space based on the route mileage data in step S2.

[0082] S7. Automatically calculate the area of ​​the evacuation platform in segments and match the cross-sectional type and corresponding material of each segment of the evacuation platform.

[0083] Specifically, the area of ​​the evacuation platform is calculated by multiplying the design length of the evacuation platform and staircase design range segmented in step S4 with the width of the evacuation platform obtained in step S5.

[0084] Specifically, the cross-sectional types of evacuation platforms include staircase types and tunnel shapes, while the materials include staircase materials and evacuation platform structure types. Both the cross-sectional types and materials of the evacuation platforms can be preset by the program or manually input. After automatically segmenting the design scope of the evacuation platforms and staircases, the area of ​​the evacuation platform within each staircase design scope is matched with the corresponding staircase type and material, and the area of ​​the evacuation platform within the evacuation platform design scope is matched with the corresponding tunnel shape and evacuation platform structure type.

[0085] S8. Automatically arrange the drawing frame and align the viewport, then insert the tunnel cross-section diagram and design description.

[0086] Specifically, the drawing frame, tunnel cross-section diagram, and design specifications are stored in the CAD template file in the AutoCAD secondary development program installation directory, and can be automatically read and inserted according to the preset style and file path.

[0087] S9. Automatically generate evacuation platform dimension table and complete the automatic drawing of evacuation platform in the shield tunnel section of rail transit.

[0088] Specifically, referring to Table 1, the evacuation platform size table includes the segmentation data in step S4, the evacuation platform size data in step S5, and the evacuation platform area, cross-sectional type, and material in step S7.

[0089] Table 1. Dimensions of the Left-Line Evacuation Platform Between Stations A and B

[0090]

[0091] In Table 1, Xi is the distance from the centerline of the track to the building clearance at the height of the fire evacuation platform; Bi is the distance from the centerline of the track to the edge of the fire evacuation platform; Ci is the theoretical width of the fire evacuation platform; Hi is the track superelevation value, a positive value indicates that the evacuation platform is located inside the curve, and a negative value indicates that the evacuation platform is located outside the curve.

[0092] In practice, the above steps in this embodiment can be implemented by writing an AutoCAD secondary development program. This program can automatically draw the evacuation platform and its staircases in segments on the AutoCAD plan of the evacuation platform in a tunnel section of a rail transit system, complete the annotations, automatically generate the evacuation platform dimension table, and create the drawing frame, viewport, design specifications, and tunnel cross-section diagram. It also includes the automatic creation and editing of polylines, text objects, and blocks, thus achieving automatic design and drawing of the evacuation platform plan for a tunnel section of rail transit. See [link to specific implementation details] for details. Figures 2-3 The programming languages ​​used in this embodiment include C++ and C#. After the program runs, it can automatically complete the above operations in dwg, dws, dwt, and dxf format files, which greatly improves the efficiency of design and drawing, and effectively avoids the accidental errors in manual operation, thus significantly improving the accuracy of the data.

[0093] Example 2

[0094] In another typical embodiment of the present invention, an automatic design and drawing system for evacuation platforms in tunnel sections of rail transit is provided. This system includes:

[0095] The software runtime module is used to run the AutoCAD secondary development program and open the AutoCAD application software;

[0096] The data reading module is used to open the plan design file of the shield tunnel section of rail transit and read the tunnel line design data and tunnel inner diameter data.

[0097] The design scope determination module is used to input the length of the evacuation platform stairs and determine the design scope of the evacuation platform and stairs based on the shield tunnel section line design scheme data.

[0098] The segmentation module is used to automatically segment the design range of evacuation platforms and staircases, calculate the design length of each segment, read the radius of the circular curve segment, obtain segmentation data, and store it.

[0099] The dimension calculation module is used to input professional data of the tunnel track in the shield tunnel section and design parameters of the evacuation platform, and to calculate and store the dimension data of the evacuation platform segmentally based on the segmented data and the tunnel inner diameter data;

[0100] The planar drawing module is used to automatically draw and label the evacuation platform plan and / or the evacuation platform stair plan based on the design range of the evacuation platform and the size data of the evacuation platform;

[0101] The segmented area calculation module is used to automatically calculate the area of ​​the evacuation platform in segments and match the cross-sectional type and corresponding material of each segment of the evacuation platform.

[0102] The segmented drawing module is used to automatically arrange the drawing frame and align the viewport, and insert cross-sectional diagrams and design specifications.

[0103] The drawing module is used to automatically generate evacuation platform dimension tables and complete the automatic drawing of evacuation platforms in rail transit shield tunnel sections.

[0104] The present invention also provides a computer device, including a memory and a processor. The memory stores a computer program, and the processor is used to run the computer program stored in the memory to perform the steps of an automatic design and drawing method for an evacuation platform in a rail transit shield tunnel section as described in Embodiment 1.

[0105] The present invention also provides a non-transitory computer-readable storage medium for storing a readable computer program, which, when run by a processor, is capable of executing the steps in the automatic design and drawing method for an evacuation platform in a rail transit shield tunnel section as described in Embodiment 1.

[0106] 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. A method for automatic design and drawing of a rail transit shield section evacuation platform, characterized in that, The method comprises the following steps: S1, running AutoCAD secondary development program, and opening AutoCAD application software; S2, opening rail transit shield interval tunnel plane design scheme file, reading shield interval tunnel line design scheme data and tunnel inner diameter data; S3, inputting evacuation platform step length, and determining evacuation platform and step design range according to the shield interval tunnel line design scheme data; S4, automatically segmenting evacuation platform and step design range, segmentally calculating design length and reading circular curve segment radius, obtaining segmented data and storing; S5, inputting shield interval tunnel track professional data and evacuation platform design parameters, and segmentally calculating evacuation platform size data based on the segmented data and the tunnel inner diameter data and storing; S6, automatically segmentally drawing evacuation platform plane and / or evacuation platform step plane based on the evacuation platform and step design range and the evacuation platform size data and marking; S7, automatically segmentally calculating evacuation platform area, and matching evacuation platform cross section type of each segment and corresponding material; S8, automatically arranging drawing frame and aligning viewport, and inserting cross section schematic diagram and design description; S9, automatically generating evacuation platform size table, and completing rail transit shield interval evacuation platform automatic drawing.

2. The automatic design and drawing method of a rail transit shield section evacuation platform according to claim 1, characterized in that, The shield interval tunnel line design scheme data comprises line mileage data, plane curve data and broken link data; the plane curve data comprises easement curve length and mileage and circular curve length, radius and mileage.

3. The automatic design and drawing method of a rail transit shield section evacuation platform according to claim 2, characterized in that, In step S3, the evacuation platform step is located at both ends of the evacuation platform; the evacuation platform and step design range is determined by inputting start point mileage and end point mileage; the start point mileage is the line mileage at the start point position of the evacuation platform step at the small mileage end of the evacuation platform; the end point mileage is the line mileage at the end point position of the evacuation platform step at the large mileage end of the evacuation platform; the line mileage at the start point position of the evacuation platform step at the small mileage end of the evacuation platform and the line mileage at the end point position of the evacuation platform step at the large mileage end of the evacuation platform are read from the line mileage data.

4. The automatic design and drawing method of a rail transit shield section evacuation platform according to claim 2, characterized in that, In step S4, the evacuation platform and step design range is segmented according to the plane curve data and the broken link data, and the segmented data is obtained; the segmented data is stored by two-dimensional array, comprising start point mileage, end point mileage, segmented line type and circular curve radius of each segment of the evacuation platform and / or the evacuation platform step; the segmented line type comprises straight line segment, easement curve segment and circular curve segment.

5. The automatic design and drawing method of a rail transit shield section evacuation platform according to claim 1, characterized in that, In step S5, the shield interval tunnel track professional data comprises track super elevation value, track structure height, center line offset and corresponding mileage range; the evacuation platform design parameters comprise evacuation platform height and construction allowance; the evacuation platform size data is calculated based on the segmented data, and comprises shield interval tunnel line center line to evacuation platform standard clearance and evacuation platform width.

6. The automatic design and drawing method of a rail transit shield section evacuation platform according to claim 5, characterized in that, In step S6, the evacuation platform plane and the evacuation platform step plane both comprise plane contour and plane filling; the plane contour is obtained according to shield interval tunnel outer contour offset, and the offset amount is the evacuation platform width.

7. The automatic design and drawing method of a rail transit shield section evacuation platform according to claim 1, characterized in that, In step S7, the evacuation platform area is calculated by multiplying the design length after the evacuation platform and staircase design range is segmented by the evacuation platform width; In step S9, the evacuation platform size table includes the segmented data, the evacuation platform size data, and the evacuation platform area, the evacuation platform cross-section type, and the material.

8. An automatic design and drawing system for a rail transit shield section evacuation platform, characterized in that, Comprise: A software running module for running an AutoCAD secondary development program and opening an AutoCAD application software; A data reading module for opening a rail transit shield section tunnel plane design scheme file, reading shield section tunnel line design scheme data and tunnel inner diameter data; A design range determination module for inputting an evacuation platform staircase length and determining an evacuation platform and staircase design range according to the shield section tunnel line design scheme data; A segmentation module for automatically segmenting the evacuation platform and staircase design range, calculating the design length, reading the circular curve segment radius, obtaining the segmented data, and storing; A size calculation module for inputting shield section tunnel track professional data and evacuation platform design parameters, calculating evacuation platform size data based on the segmented data and the tunnel inner diameter data, and storing; A plane drawing module for automatically drawing an evacuation platform plane and / or an evacuation platform staircase plane based on the evacuation platform and staircase design range and the evacuation platform size data, and labeling; A segmented area calculation module for automatically calculating the evacuation platform area and matching the evacuation platform cross-section type and the corresponding material of each segment; A segmented drawing module for automatically arranging a frame and aligning a viewport, inserting a cross-section schematic diagram and a design description; An output module for automatically generating an evacuation platform size table and completing rail transit shield section evacuation platform automatic drawing. 9.A computer device, comprising a memory and a processor, and characterized in that, The memory stores a computer program, and the processor is configured to execute the computer program stored in the memory to perform the steps of the automatic design and drawing method of the rail transit shield section evacuation platform according to any one of claims 1-7.

10. A non-transitory computer-readable storage medium storing a readable computer program, characterized in that, The computer program is executed by the processor to perform the steps of the automatic design and drawing method of the rail transit shield section evacuation platform according to any one of claims 1-7.

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