Automatic arrangement of layered reinforced structure of fill roadbed and automatic calculation method of engineering quantity

Abstract

This invention discloses an automatic layout method for layered reinforced structures in embankment subgrades. Based on AutoCAD, the method includes the following steps: setting the spacing of the reinforced structures in the embankment subgrade; obtaining the ground line and node coordinates of the subgrade cross-section corresponding to the first station; obtaining the design lines on the left and right sides of the cross-section and their node coordinates; setting subgrade edge control points on the subgrade cross-section corresponding to the first station and recording their longitudinal coordinates; calculating the elevation of each layer of reinforced structures on the subgrade cross-section corresponding to the first station; calculating the coordinates of the control points at both ends of each layer of reinforced structures based on the elevation of each layer, the node coordinates of the ground line, and the node coordinates of the design lines; drawing multiple lines on the first station cross-section of the embankment subgrade based on the control point coordinates; and drawing multiple lines on the subgrade cross-sections corresponding to each station to form a layout diagram of the reinforced structures for each station. This invention also discloses an automatic calculation method for the engineering quantity of layered reinforced structures in embankment subgrades. This method is practical.

Description

Technical Field

[0001] This invention relates to the field of embankment subgrade design, and particularly to a method for automatically arranging layered reinforcement structures for embankment subgrades, and also to a method for automatically calculating the engineering quantities of layered reinforcement structures for embankment subgrades. Background Technology

[0002] In the design of high-fill or steep-slope roadbeds, layered reinforcement structures, such as layered geogrids and geocells, are often required to ensure the stability of the embankment and prevent uneven settlement. Typically, when designing reinforcement structures, different layer thicknesses are used based on the properties of the fill material and the topographical and geological conditions to achieve the best roadbed treatment effect. Roadbed designers often need to manually draw the reinforcement structures and calculate the corresponding quantities for each roadbed cross-section. This process is inefficient and prone to omissions due to manual work. If key locations are missed and not manually corrected, there will be issues such as missing quantities, directly impacting the interests of the contractor and the owner. Summary of the Invention

[0003] In view of this, one objective of the present invention is to provide a method for automatically arranging the layered reinforcement structure of embankment subgrade, solving the technical problems of large workload, low efficiency and poor accuracy of manually drawing each cross section reinforcement structure. Another objective of the present invention is to provide a method for automatically calculating the engineering quantity of the layered reinforcement structure of embankment subgrade, solving the technical problems of large workload, low efficiency and poor accuracy of manually calculating the engineering quantity of reinforcement structure.

[0004] One of the objectives of this invention is achieved through the following technical solution:

[0005] The method for automatically arranging layered reinforcement structures in embankment subgrades, based on AutoCAD, includes the following steps:

[0006] (1) Set the spacing of the reinforced structures for the embankment subgrade;

[0007] (2) Take the ground line of the roadbed cross section corresponding to the first station number, and take the node coordinates of the ground line as control points;

[0008] Take the left design line of the roadbed cross section corresponding to the first station, take the right design line of the roadbed cross section corresponding to the first station, and take the node coordinates of the design lines as control points.

[0009] (3) Set up the roadbed edge control point on the roadbed cross section corresponding to the first station and record its longitudinal coordinate;

[0010] (4) Calculate the elevation of each layer of reinforced structure on the cross section of the roadbed corresponding to the first station using the following formula:

[0011] Elevation of the i-layer reinforced structure = Vertical coordinate of the roadbed edge control point - i * Spacing of the reinforced structure

[0012] (5) Determine the ground line of the roadbed cross section corresponding to the first station number:

[0013] If A is higher on the left and lower on the right, then determine the relationship between the ordinate of the lowest point of the left design line and the elevation of the reinforced structure of that floor layer by layer:

[0014] a. If the ordinate of the lowest point of the left design line is less than the elevation of the reinforced structure of that floor, then the left control point of the reinforced structure is located near the intersection of the horizontal direction of the reinforced structure elevation and the left design line. The coordinates of the lower control point of the design line adjacent to this intersection are set as (x_a, y_a), and the coordinates of the upper control point of the design line adjacent to this intersection are set as (x_b, y_b). The formula for calculating the x_c of the left control point of the reinforced structure is:

[0015] If y_a=list_gsdd_y, x_c=x_a+2

[0016] If y_a < list_gsdd_y.

[0017] b. If the ordinate of the lowest point of the left design line is greater than the elevation of the reinforced structure of that floor, then the control point on the left side of the reinforced structure is located near the intersection of the horizontal elevation of the reinforced structure and the left ground line. The coordinates of the control point below the ground line adjacent to this intersection are set as (x_a, y_a), and the coordinates of the control point above the ground line adjacent to this intersection are set as (x_b, y_b). The formula for calculating the x_c of the left control point of the reinforced structure is:

[0018] If y_a=list_gsdd_y, x_c=x_a

[0019] If y_a < list_gsdd_y.

[0020] c. The control point on the right side of the reinforced structure is located near the intersection of the horizontal elevation of the reinforced structure and the right-side design line. Let the coordinates of the lower control point adjacent to this intersection be (x_a, y_a), and the coordinates of the upper control point adjacent to this intersection be (x_b, y_b). Then, the formula for calculating the x-coordinate x_c of the right-side control point of the reinforced structure is:

[0021] If y_a=list_gsdd_y, x_c=x_a-2

[0022] If y_a < list_gsdd_y.

[0023] If B is lower on the left and higher on the right, then determine the relationship between the ordinate of the lowest point of the design line on the right and the elevation of the reinforced structure of that floor layer by layer:

[0024] a. If the ordinate of the lowest point of the right-side design line is less than the elevation of the reinforced structure of that floor, then the right-side control point of the reinforced structure is located near the intersection of the horizontal direction of the reinforced structure elevation and the right-side design line. The coordinates of the lower control point of the design line adjacent to this intersection are set as (x_a, y_a), and the coordinates of the upper control point of the design line adjacent to this intersection are set as (x_b, y_b). The formula for calculating the x-coordinate x_c of the right-side control point of the reinforced structure is:

[0025] If y_a=list_gsdd_y, x_c=x_a-2

[0026] If y_a < list_gsdd_y.

[0027] b. If the ordinate of the lowest point of the design line on the right is greater than the elevation of the reinforced structure of that floor, then the control point on the right side of the reinforced structure is located near the intersection of the horizontal elevation of the reinforced structure and the right ground line. The coordinates of the control point below the ground line adjacent to this intersection are set as (x_a, y_a), and the coordinates of the control point above the ground line adjacent to this intersection are set as (x_b, y_b). The formula for calculating the x_c of the control point on the right side of the reinforced structure is:

[0028] If y_a=list_gsdd_y, x_c=x_a

[0029] If y_a < list_gsdd_y.

[0030] c. The control point on the left side of the reinforced structure is located near the intersection of the horizontal elevation of the reinforced structure and the left design line. The coordinates of the lower control point adjacent to this intersection are set as (x_a, y_a), and the coordinates of the upper control point adjacent to this intersection are set as (x_b, y_b). The formula for calculating the x-coordinate x_c of the left control point of the reinforced structure is:

[0031] If y_a=list_gsdd_y, x_c=x_a+2

[0032] If y_a < list_gsdd_y.

[0033] The ordinates of the left and right control points of each layer of the reinforced structure are the corresponding elevations of the reinforced structure of each layer.

[0034] (6) Determine the location of each control point of the reinforced structure in each layer. If the control point is near the design line, extend the end of the reinforced structure corresponding to the control point and wrap it in the upper fill to form a new control point. If the control point is near the ground line, extend the end of the reinforced structure corresponding to the control point and enter the excavation area to form a new control point.

[0035] (7) Traverse the coordinates of each control point and the newly added control point of each layer of reinforced structure, and draw a multi-segment line on the cross section of the first station of the embankment.

[0036] (8) Repeat steps (2)-(7) to draw multi-segment lines on the cross sections of the roadbed corresponding to each of the remaining station numbers of the embankment roadbed, and finally form the reinforcement structure layout diagram of the cross sections of the roadbed corresponding to each station number.

[0037] Furthermore, in step (6), the reverse wrapping height is 0.8 meters, the reverse wrapping length is 2 meters, and the depth into the excavation area is 2 meters.

[0038] The second objective of this invention is achieved through the following technical solution:

[0039] The method for automatically calculating the engineering quantities of layered reinforced structures in embankment subgrade includes the following steps:

[0040] (9) Take the station numbers of each embankment roadbed and convert the station numbers into station numbers in meters;

[0041] (10) Take the length of the polyline of the cross section corresponding to each station number from the above steps and sum them to obtain the length of the polyline of the reinforced structure in the cross section corresponding to each station number;

[0042] (11) Iterate through the length of the cross-section reinforced structure polyline and the chainage value corresponding to each station and calculate multiple results using the following formula. Summing the multiple results yields the quantity of reinforced structure work for the embankment subgrade:

[0043] When k=0, there is only one cross-section, cal_area=0.

[0044] When k = 0, there are a total of ≥ two cross-sections.

[0045] When 0 < k < total number of cross sections,

[0046] When k = total number of cross sections

[0047] Where k is the cross section corresponding to the kth station, k takes the values ​​0, 1, 2, 3, ...; cal_area is the reinforced structural area of ​​the cross section corresponding to each station.

[0048] The beneficial effects of this invention are:

[0049] The present invention provides an automatic layout method for layered reinforced structures in embankment subgrades. Based on AutoCAD, this method automatically calculates the coordinates of the left and right control points of each layer of reinforced structures in the subgrade cross-section corresponding to each station number by using the spacing between reinforced structure layers, the ground line of the subgrade cross-section corresponding to each station number, the left and right design lines, the control points of the subgrade edge, and their coordinates. It also draws multi-segment lines on the subgrade cross-section corresponding to each station number based on the control point coordinates to form a layout diagram of the reinforced structure in the subgrade cross-section corresponding to each station number. The method for automatically calculating the engineering quantity of layered reinforced structures in embankment subgrades in this invention calculates the area of ​​the reinforced structure in the cross-section corresponding to each station number by using the length of the multi-segment lines of the reinforced structure in the cross-section corresponding to each station number and the station number value. The engineering quantity of the reinforced structure in the embankment subgrade is obtained by superimposing the areas of the reinforced structures in the cross-section corresponding to each station number. The use of this method greatly reduces the workload of subgrade designers, and is highly efficient and accurate.

[0050] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained from the following description and claims. Attached Figure Description

[0051] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will now be described in further detail with reference to the accompanying drawings, wherein:

[0052] Figure 1 This is a schematic diagram of the method flow of the present invention.

[0053] Figure 2 Cross-sectional view of the roadbed before the installation of geogrids in the section from K92+460 to K92+500.

[0054] Figure 3 This invention is used to automatically draw and calculate the effect diagram of the geogrid for the roadbed section from K92+460 to K92+500.

[0055] Figure 4 This invention is used to automatically draw and calculate a magnified view of the local effect of the geogrid in the roadbed section from K92+460 to K92+500.

[0056] Figure 5 The screenshot shows the automatic calculation results of the geogrid engineering quantity of the roadbed section from K92+460 to K92+500 using the present invention. Detailed Implementation

[0057] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0058] like Figure 1 As shown, the method for automatically arranging layered reinforcement structures in embankment subgrades, based on AutoCAD, specifically includes the following steps (this embodiment uses a reinforced geogrid structure as an example):

[0059] (1) The spacing between the geogrid layers in the embankment subgrade is set to 4 meters, which is determined based on factors such as the nearby earthwork conditions and the compaction effect of the fill material, so as to ensure that the geogrid achieves better implementation results.

[0060] (2) Take the ground line of the roadbed cross section corresponding to the first station, and take the node coordinates of the ground line as control points. In this embodiment, the first station is K92+460.

[0061] Take the left design line of the roadbed cross section corresponding to the first station, take the right design line of the roadbed cross section corresponding to the first station, and take the node coordinates of the design lines as control points.

[0062] In this embodiment, the roadbed cross sections corresponding to each station number are all designed, and their ground lines, left and right design lines and node coordinates are all readily available.

[0063] (3) Set up the roadbed edge control point on the roadbed cross section corresponding to the first station and record its longitudinal coordinate;

[0064] To better control the design parameters of the embankment subgrade, the shoulder position on the side with higher embankment height should be selected as the subgrade edge control point, which allows for a more reasonable calculation of the elevation of each layer of geogrid.

[0065] (4) Calculate the elevation of each layer of geogrid on the cross section of the subgrade corresponding to the first station using the following formula:

[0066] Elevation of layer i geogrid = ordinate of roadbed edge control point - i * geogrid layer spacing

[0067] (5) Determine the ground line of the roadbed cross section corresponding to the first station number:

[0068] If A is higher on the left and lower on the right, then determine the relationship between the ordinate of the lowest point of the left design line and the elevation of the geogrid in that layer, layer by layer:

[0069] a. If the ordinate of the lowest point of the left design line is less than the elevation of the geogrid layer, then the control point on the left side of the geogrid layer is located near the intersection of the geogrid layer's elevation with the left design line in the horizontal direction. The coordinates of the lower control point of the design line adjacent to this intersection are set as (x_a, y_a), and the coordinates of the upper control point of the design line adjacent to this intersection are set as (x_b, y_b). The formula for calculating the x_c of the left control point of the geogrid is:

[0070] If y_a=list_gsdd_y, x_c=x_a+2

[0071] If y_a < list_gsdd_y.

[0072] b. If the ordinate of the lowest point of the left design line is greater than the elevation of the geogrid layer, then the control point on the left side of the geogrid layer is located near the intersection of the geogrid layer's elevation with the left ground line in the horizontal direction. The coordinates of the control point below the ground line adjacent to this intersection are set as (x_a, y_a), and the coordinates of the control point above the ground line adjacent to this intersection are set as (x_b, y_b). The formula for calculating the x_c of the left control point of the geogrid is:

[0073] If y_a=list_gsdd_y, x_c=x_a

[0074] If y_a < list_gsdd_y.

[0075] c. The control point on the right side of this geogrid layer is located near the intersection of the geogrid elevation and the right-side design line in the horizontal direction. Let the coordinates of the lower control point below the design line adjacent to this intersection be (x_a, y_a), and the coordinates of the upper control point above the design line adjacent to this intersection be (x_b, y_b). Then, the formula for calculating the x-coordinate x_c of the control point on the right side of the geogrid is:

[0076] If y_a=list_gsdd_y, x_c=x_a-2

[0077] If y_a < list_gsdd_y.

[0078] If B is lower on the left and higher on the right, then determine the relationship between the ordinate of the lowest point of the design line on the right and the elevation of the geogrid in that layer, layer by layer:

[0079] a. If the ordinate of the lowest point of the design line on the right is less than the elevation of the geogrid layer, then the control point on the right side of the geogrid layer is located near the intersection of the geogrid layer's elevation with the design line on the right in the horizontal direction. The coordinates of the lower control point of the design line adjacent to this intersection are set as (x_a, y_a), and the coordinates of the upper control point of the design line adjacent to this intersection are set as (x_b, y_b). The formula for calculating the x_c of the right control point of the geogrid is:

[0080] If y_a=list_gsdd_y, x_c=x_a-2

[0081] If y_a < list_gsdd_y.

[0082] b. If the ordinate of the lowest point of the design line on the right is greater than the elevation of the geogrid layer, then the control point on the right side of the geogrid layer is located near the intersection of the geogrid elevation and the right ground line in the horizontal direction. The coordinates of the control point below the ground line adjacent to this intersection are set as (x_a, y_a), and the coordinates of the control point above the ground line adjacent to this intersection are set as (x_b, y_b). The formula for calculating the x_c of the control point on the right side of the geogrid is:

[0083] If y_a=list_gsdd_y, x_c=x_a

[0084] If y_a < list_gsdd_y.

[0085] c. The control point on the left side of this geogrid layer is located near the intersection of the geogrid layer's elevation with the left-side design line in the horizontal direction. The coordinates of the lower control point below the design line adjacent to this intersection are set as (x_a, y_a), and the coordinates of the upper control point above the design line adjacent to this intersection are set as (x_b, y_b). The formula for calculating the x-coordinate x_c of the control point on the left side of the geogrid is:

[0086] If y_a=list_gsdd_y, x_c=x_a+2

[0087] If y_a < list_gsdd_y.

[0088] The ordinates of the left and right control points of each layer of geogrid are the corresponding elevations of each layer of geogrid.

[0089] (6) Determine the location of each control point of each layer of geogrid. If the control point is near the design line, extend the end of the geogrid corresponding to the control point and wrap it in the upper fill to form a new control point. If the control point is near the ground line, extend the end of the geogrid corresponding to the control point and enter the excavation area to form a new control point.

[0090] The height of the inverted package is 0.8 meters, the length of the inverted package is 2 meters, and it enters the excavation area 2 meters deep;

[0091] (7) Traverse the coordinates of each control point and the newly added control point of each layer of geogrid, and draw a multi-segment line on the cross section of the first station of the embankment.

[0092] (8) Repeat steps (2)-(7) to draw multiple lines on the cross section of the roadbed corresponding to each of the remaining station numbers of the embankment roadbed, and finally form the geogrid layout diagram of the cross section of the roadbed corresponding to each station number. The remaining station numbers are K92+480 and K92+500 respectively.

[0093] To make the drawn geogrid polylines easier to use and more eye-catching, the polyline color is set to a striking color such as red, and the polyline layer is set to the "Geogrid" layer.

[0094] The method for automatically calculating the engineering quantities of layered reinforced structures in embankment subgrade includes the following steps:

[0095] (9) Take the station numbers of each embankment roadbed and convert the station numbers into station numbers in meters;

[0096] Specifically, take the station number K92+460, use "text" as the attribute element, identify the "+" symbol, separate the text before and after the "+", record the first part as the kilometer number and the second part as the meter number, convert the kilometer unit to meter, add the meter number to obtain the station number value in meters. The same applies to station numbers K92+480 and K92+500.

[0097] (10) Take the length of the cross section polyline corresponding to each station number from the above steps and sum them to obtain the length of the cross section geogrid polyline corresponding to each station number;

[0098] (11) Iterate through the length of the cross-section reinforced structure polyline and the chainage value corresponding to each station and calculate multiple results using the following formula. Summing the multiple results yields the quantity of reinforced structure work for the embankment subgrade:

[0099] When k=0, there is only one cross-section, cal_area=0.

[0100] When k = 0, there are a total of ≥ two cross-sections.

[0101] When 0 < k < total number of cross sections,

[0102] When k = total number of cross sections

[0103] Where k is the cross section corresponding to the kth station, k takes the values ​​0, 1, and 2; cal_area is the geogrid area of ​​the cross section corresponding to each station;

[0104] The total number of cross sections corresponds to the total number of chainages. This can be set by default or determined based on the geogrid layout diagram of the roadbed cross section corresponding to each chainage.

[0105] Chainage K92+460: K=0, the total number of cross sections is greater than two;

[0106] Chainage K92+480: 0 < k < total number of cross sections;

[0107] Chainage K92+500: k = total number of cross sections;

[0108] Therefore, this embodiment

[0109]

[0110] This invention is based on the batch identification of key graphic elements of roadbed cross sections, the batch extraction and calculation of key coordinate control points, and can be extended to the batch design calculation of other elements of the cross section, such as the automatic drawing and quantity calculation of geocells in embankment cross sections.

[0111] Based on long-term highway subgrade design work, this invention can realize the automatic drawing of geogrids for embankment subgrades and the automatic calculation of geogrid area. It has flexible operation and convenience, which can effectively reduce the workload of designers and improve the efficiency and accuracy of drawing.

[0112] This invention utilizes the Autolisp language to develop corresponding AutoCAD auxiliary tools.

[0113] Finally, 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. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A method for automatically arranging layered reinforcement structures in embankment subgrades, characterized in that: It is based on AutoCAD. Specifically, the steps include the following: (1) Set the spacing of the reinforced structures for the embankment subgrade; (2) Take the ground line of the roadbed cross section corresponding to the first station number, and take the node coordinates of the ground line as control points; Take the left design line of the roadbed cross section corresponding to the first station, take the right design line of the roadbed cross section corresponding to the first station, and take the node coordinates of the design lines as control points. (3) Set up the roadbed edge control point on the roadbed cross section corresponding to the first station and record its longitudinal coordinate; (4) Calculate the elevation of each layer of reinforced structure on the cross section of the roadbed corresponding to the first station using the following formula: Elevation of the i-layer reinforced structure = Vertical coordinate of the roadbed edge control point - i * Spacing of the reinforced structure (5) Determine the ground line of the roadbed cross section corresponding to the first station number: If A is higher on the left and lower on the right, then determine the relationship between the ordinate of the lowest point of the left design line and the elevation of the reinforced structure of that floor layer by layer: a. If the ordinate of the lowest point of the left design line is less than the elevation of the reinforced structure of that floor, then the left control point of the reinforced structure is located near the intersection of the horizontal direction of the reinforced structure elevation and the left design line. The coordinates of the lower control point of the design line adjacent to this intersection are set as (x_a, y_a), and the coordinates of the upper control point of the design line adjacent to this intersection are set as (x_b, y_b). The formula for calculating the x_c of the left control point of the reinforced structure is: If y_a=list_gsdd_y, x_c=x_a+2 If y_a < list_gsdd_y, b. If the ordinate of the lowest point of the left design line is greater than the elevation of the reinforced structure of that floor, then the control point on the left side of the reinforced structure is located near the intersection of the horizontal elevation of the reinforced structure and the left ground line. The coordinates of the control point below the ground line adjacent to this intersection are set as (x_a, y_a), and the coordinates of the control point above the ground line adjacent to this intersection are set as (x_b, y_b). The formula for calculating the x_c of the left control point of the reinforced structure is: If y_a=list_gsdd_y, x_c=x_a If y_a < list_gsdd_y, c. The control point on the right side of the reinforced structure is located near the intersection of the horizontal elevation of the reinforced structure and the right-side design line. Let the coordinates of the lower control point adjacent to this intersection be (x_a, y_a), and the coordinates of the upper control point adjacent to this intersection be (x_b, y_b). Then, the formula for calculating the x-coordinate x_c of the right-side control point of the reinforced structure is: If y_a=list_gsdd_y, x_c=x_a-2 If y_a < list_gsdd_y, If B is lower on the left and higher on the right, then determine the relationship between the ordinate of the lowest point of the design line on the right and the elevation of the reinforced structure of that floor layer by layer: a. If the ordinate of the lowest point of the right-side design line is less than the elevation of the reinforced structure of that floor, then the right-side control point of the reinforced structure is located near the intersection of the horizontal direction of the reinforced structure elevation and the right-side design line. The coordinates of the lower control point of the design line adjacent to this intersection are set as (x_a, y_a), and the coordinates of the upper control point of the design line adjacent to this intersection are set as (x_b, y_b). The formula for calculating the x-coordinate x_c of the right-side control point of the reinforced structure is: If y_a=list_gsdd_y, x_c=x_a-2 If y_a < list_gsdd_y, b. If the ordinate of the lowest point of the design line on the right is greater than the elevation of the reinforced structure of that floor, then the control point on the right side of the reinforced structure is located near the intersection of the horizontal elevation of the reinforced structure and the right ground line. The coordinates of the control point below the ground line adjacent to this intersection are set as (x_a, y_a), and the coordinates of the control point above the ground line adjacent to this intersection are set as (x_b, y_b). The formula for calculating the x_c of the control point on the right side of the reinforced structure is: If y_a=list_gsdd_y, x_c=x_a If y_a < list_gsdd_y, c. The control point on the left side of the reinforced structure is located near the intersection of the horizontal elevation of the reinforced structure and the left design line. The coordinates of the lower control point adjacent to this intersection are set as (x_a, y_a), and the coordinates of the upper control point adjacent to this intersection are set as (x_b, y_b). The formula for calculating the x-coordinate x_c of the left control point of the reinforced structure is: If y_a=list_gsdd_y, x_c=x_a+2 If y_a < list_gsdd_y, The ordinates of the left and right control points of each layer of the reinforced structure are the corresponding elevations of the reinforced structure of each layer. (6) Determine the location of each control point of the reinforced structure in each layer. If the control point is near the design line, extend the end of the reinforced structure corresponding to the control point and wrap it in the upper fill to form a new control point. If the control point is near the ground line, extend the end of the reinforced structure corresponding to the control point and enter the excavation area to form a new control point. (7) Traverse the coordinates of each control point and the newly added control point of each layer of reinforced structure, and draw a multi-segment line on the cross section of the first station of the embankment. (8) Repeat steps (2)-(7) to draw multi-segment lines on the cross sections of the roadbed corresponding to each of the remaining station numbers of the embankment roadbed, and finally form the reinforcement structure layout diagram of the cross sections of the roadbed corresponding to each station number.

2. The method for automatically arranging layered reinforcement structures for embankment subgrade according to claim 1, characterized in that: In step (6), the reverse wrapping height is 0.8 meters, the reverse wrapping length is 2 meters, and it enters the excavation area by 2 meters.

3. A method for automatically calculating the engineering quantity of layered reinforced embankment subgrade structures, characterized in that: Includes the following steps: (9) Take the station numbers of each embankment roadbed and convert the station numbers into station numbers in meters; (10) Take the length of the polyline of the cross section corresponding to each station number from claim 1 or 2 and sum them to obtain the length of the polyline of the reinforced structure in the cross section corresponding to each station number; (11) Iterate through the length of the cross-section reinforced structure polyline and the chainage value corresponding to each station and calculate multiple results using the following formula. Summing the multiple results yields the quantity of reinforced structure work for the embankment subgrade: When k=0, there is only one cross-section, cal_area=0. When k = 0, there are a total of ≥ two cross-sections. When 0 < k < total number of cross sections, When k = total number of cross sections Where k is the cross section corresponding to the kth station, and k takes the values ​​0, 1, 2, 3, ...; cal_area is the reinforced structural area of ​​the cross section corresponding to each station.

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