Design of track frame and inclined support device based on line adjustment and slope adjustment method of evolutionary algorithm

Abstract

The invention discloses a track frame and an inclined support device designed by a line adjustment and slope adjustment method based on an evolutionary algorithm, and belongs to the field of rail transportation. The invention can effectively shorten the construction period of subway track laying construction, reduce the workload of fine adjustment, and improve the construction precision and accuracy, thereby improving the construction quality. The intelligent line adjustment and slope adjustment method of the evolutionary algorithm is applied to the track laying process, and the civil engineering structure data is reflected in the track tooling size. A set of high-precision track frame, lead screw, and inclined support length production schemes are calculated in a short time by using manual analysis and system adjustment, so that the adaptability of track laying is improved, and the occurrence of serious constraints on on-site progress is reduced. During the construction process of different intervals, dynamic adjustments are made according to the changes of the main civil engineering structure, and the length-setting device is designed and selected under the premise of wide applicability, so as to ensure that the construction process is controllable, construction early warning is given, the construction progress is improved, the acceptance quality of the track project is guaranteed, and the personnel input and labor intensity are reduced.

Description

Technical Field

[0001] The present invention relates to the field of rail transportation adjustment, and more specifically, to a track frame and an inclined support device designed by a line adjustment and slope adjustment method based on an evolutionary algorithm. Background Art

[0002] In the field of urban rail transit subway track laying, due to construction errors in the main station and shield section, and the environmental impact assessment results of the preliminary design civil construction drawings are usually the second edition, in the subsequent environmental impact assessment report, the track bed type changes, and the track bed structure height changes. For example, the track structure height of the steel spring floating plate track bed is 960mm, and the civil construction is constructed according to the original design, resulting in the bottom plate being lower than the design value. The existing track bed type is a general integral track bed of 560mm, which leads to insufficient length of the rail support frame (split rail frame) and the screw rod during the professional track construction process, and the diagonal brace cannot be pushed to a safe position, that is, the maximum value still cannot meet the track bed structure height requirements and the line centerline distance from the side wall requirements. The re-customization of the rail frame and screw rod causes delays in the construction period and affects the track row installation and track fine-tuning.

[0003] In the section with short rail sleepers and integral ballast bed, due to the construction deviation before the shield pipe edge, the screw support position cannot accurately provide lateral force to the center of the line. In addition, since temporary rails are required for material transportation, the diagonal brace cannot act on the rail head, making it difficult to control the bottom slope of the rail in the section with short rail sleepers. In addition, the commonly used rail slope instruments are absolutely accurate instruments, which cannot reflect the relative smoothness and roundness of the track state, affecting the construction quality and progress.

[0004] In the prior art, it is impossible to control the relative smoothness and roundness of the track during the track bottom slope control. It is difficult to control the track state and the track bottom slope, and the workload of repeated adjustments is large. In addition, when the track inspection vehicle in the industry adjusts the track state in combination with the track foundation control network, it is impossible to control the track bottom slope, which is easy to be ignored. During the operation stage, the track bottom slope changes or cannot meet the driving conditions. The track slope glue cannot be applied for a long time, and the investment is large. The track slope glue itself has a great impact on the environment. The existing rail support frame cannot be used safely and effectively in areas where the height of the ballast bed structure cannot be met, whether it is higher or lower than the design. When it is higher than the design, the pads below are fragile, and the weight of the rail is large, so general loads cannot meet the requirements of padding; when it is lower than the design, the intervals are increased or the lead screws are cut to prevent the upper end of the lead screws from colliding with the rail car or flatbed car structure; when there is a deviation between the main civil engineering structure and the original design, the existing diagonal brace is often not long enough or too long to be installed, and it is necessary to cut the diagonal brace or weld a section, which restricts the construction progress, and the processing is difficult and has a high safety risk. After processing, it cannot be used again, resulting in a waste of resources. These problems are yet to be addressed. The applicant has applied for an invention patent with the patent number 201910652252.5, named "Intelligent Line Adjustment and Slope Adjustment Method Based on Evolutionary Algorithm", and applied to apply it to the design of rail frames and diagonal support devices based on this technology to solve the shortcomings of the existing technology. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a line adjustment and slope adjustment method based on an evolutionary algorithm to design a track frame and an inclined support device. The present invention can effectively shorten the construction period of subway track laying, reduce the workload of fine adjustment, and improve the construction precision and accuracy, thereby improving the construction quality. By applying the intelligent line adjustment and slope adjustment method of the evolutionary algorithm to the track laying process, the civil structure data is reflected in the track tooling size, and a set of high-precision track frame, lead screw, and inclined support length production plans are calculated in a short time by using manual analysis and system adjustment, so that the adaptability of track laying is improved and the occurrence of serious constraints on the on-site progress is reduced. During the construction process of different intervals, dynamic adjustments are made according to the changes in the main structure of the civil engineering, and the design and selection of the length-setting device are carried out under the premise of wide applicability, so as to improve the full applicability of the rail support frame, lead screw, and inclined support, ensure the controllability of the construction process, construction early warning, improve the construction progress, ensure the acceptance quality of the track project, and reduce personnel input and labor intensity.

[0007] 2. Technical solution

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] The track frame and inclined support device are designed based on the line adjustment and slope adjustment method of the evolutionary algorithm, and the usage method is as follows:

[0010] S1. Encoding the line population of line adjustment and slope adjustment by using an evolutionary algorithm to screen out an optimal line adjustment and slope adjustment scheme;

[0011] S2. Scan the tunnel, perform algorithm analysis based on the state of the civil structure, obtain the state of important points, determine the state of the track, and then design the size of the fixed-length split track frame and the inclined support device;

[0012] S3, parameterize and visualize the structure derived by the algorithm, and establish a library of fixed-length devices based on algorithm derivation and numerical simulation;

[0013] S4. During the construction process of different sections, dynamic adjustments are made according to the changes in the main structure of the civil engineering, and the design and selection of the sizing device are carried out under the premise of wide applicability;

[0014] S5. After the diagonal brace and the lead screw are determined, the rail bottom slope analysis and simulation are performed using point cloud big data to make the track relatively smooth;

[0015] S6. The track structure height adjusted by the algorithm is mass-produced in fixed lengths and type-coded.

[0016] Furthermore, in the S1 coding, a binary coding method is used to generate a coding sequence for representing the plane and longitudinal section parameters, and every ten binary digits in the sequence are used to represent the change of a parameter.

[0017] Furthermore, in the dimensions of the S2 designed fixed-length split rail frame and inclined support device, the rail section shortening is calculated by 1500*l / R+1500*circular curve length / R-1500*(l-length from the transition curve or circular curve to the joint) / (l*R+l*R).

[0018] Furthermore, in the dimensions of the diagonal support device designed by S2, the difference between the design elevation and width of the civil engineering base plate and the current algorithm after completion is determined according to the height of the track structure, 70mm from the lower rail head to the rail waist, to determine the height of the screw rod, and then determine the length of the diagonal support according to the width.

[0019] Furthermore, the S5 uses point cloud big data to perform rail bottom slope analysis simulation, and each simulated position can make the rail bottom slope between 1 / 35-1 / 40 and relatively horizontal.

[0020] Furthermore, in the process of determining the height of the screw rod, the screw rod height is designed according to: (algorithm height - 176 - 60 (40) - 20) mm, and the bottom of the screw rod should be designed according to whether the section is a shield section or a station.

[0021] Furthermore, the shield section is additionally provided with an anti-slip head, the anti-slip head is made of anti-slip material, the surface of the anti-slip head is coated with anti-slip paint, and the top of the screw rod is provided with a handheld turning handle, which is convenient for personnel to prevent slipping during construction, thereby improving construction efficiency.

[0022] Furthermore, joints are fixedly connected at both ends of the screw rod, and the screw rod and the joints are connected by pins, which facilitates the removal and direction adjustment of the screw rod.

[0023] Furthermore, the intelligent line and slope adjustment method of the evolutionary algorithm is a lightweight construction method and device transformation plan that performs theoretical analysis and data deformation processing on the line and slope adjustment data and the interval tunnel scanning data. The theoretical analysis and deformation processing respectively use Fourier series derivation and Simsson's theorem judgment process, which can orderly and deterministically produce the device, automatically obtain the demand data of the track profession in the structural state, and perform automatic correction and adjustment, and generate the optimal fixed-length tooling according to the line status.

[0024] 3. Beneficial effects

[0025] Compared with the prior art, the advantages of the present invention are:

[0026] The purpose of the present invention is to provide a line adjustment and slope adjustment method based on an evolutionary algorithm to design a track frame and an inclined support device. The present invention can effectively shorten the construction period of subway track laying construction, reduce the workload of fine adjustment, and improve the construction precision and accuracy, thereby improving the construction quality. By applying the intelligent line adjustment and slope adjustment method of the evolutionary algorithm to the track laying process, the civil structure data is reflected in the track tooling size, and a set of high-precision track frame, lead screw, and inclined support length production plans are calculated in a short time by using manual analysis and system adjustment, so that the adaptability of track laying is improved, and the occurrence of serious constraints on the progress on site is reduced. During the construction process of different intervals, dynamic adjustments are made according to the changes in the main structure of the civil engineering, and the design and selection of the length-setting device are carried out under the premise of wide applicability, so as to improve the full applicability of the rail support frame, lead screw, and inclined support, ensure the controllability of the construction process, construction early warning, improve the construction progress, ensure the acceptance quality of the track project, and reduce personnel input and labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is the main flow chart of the operation steps of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the screw rod of the present invention.

[0029] Description of the numbers in the figure:

[0030] 1 screw, 2 joints. DETAILED DESCRIPTION

[0031] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Embodiment 1:

[0035] See also Figure 1-2 , the track frame and inclined support device are designed based on the line adjustment and slope adjustment method of the evolutionary algorithm, and the usage method is as follows:

[0036] S1. Encoding the line population of line adjustment and slope adjustment by using an evolutionary algorithm to screen out an optimal line adjustment and slope adjustment scheme;

[0037] S2. Scan the tunnel, perform algorithm analysis based on the state of the civil structure, obtain the state of important points, determine the state of the track, and then design the size of the fixed-length split track frame and the inclined support device;

[0038] S3, parameterize and visualize the structure derived by the algorithm, and establish a library of fixed-length devices based on algorithm derivation and numerical simulation;

[0039] S4. During the construction process of different sections, dynamic adjustments are made according to the changes in the main structure of the civil engineering, and the design and selection of the sizing device are carried out under the premise of wide applicability;

[0040] S5. After the diagonal brace and the lead screw are determined, the rail bottom slope analysis and simulation are performed using point cloud big data to make the track relatively smooth;

[0041] S6. The track structure height adjusted by the algorithm is mass-produced in fixed lengths and type-coded.

[0042] During the construction process in different sections, dynamic adjustments are made according to the changes in the main structure of the civil engineering, and the design and selection of the sizing device are carried out under the premise of wide applicability, so as to improve the full applicability of the rail support frame, screw rod and diagonal brace, ensure the controllable construction process, early warning of construction, improve the construction progress, ensure the acceptance quality of the track project, and reduce personnel input and labor intensity.

[0043] See also Figure 1 In S1 coding, binary coding is used to generate a coding sequence for representing plane and longitudinal section parameters. Every ten binary digits in the sequence are used to represent the change of a parameter. In S2 design of fixed-length split rail frame and inclined support device dimensions, the rail section shortening is calculated by 1500*l / R+1500*circular curve length / R-1500*(l-length from the transition curve or circular curve to the joint) / (l*R+l*R). In S2 design of inclined support device dimensions, the difference between the design elevation and width of the civil engineering bottom plate and the current algorithm is completed. According to the height of the track structure, the lower rail head is 70mm, and the height of the screw rod 1 is determined to the rail waist part, and then the length of the inclined support is determined according to the width. In S5, point cloud big data is used to simulate the rail bottom slope analysis. The simulated positions can make the rail bottom slope between 1 / 35-1 / 40 and relatively horizontal.

[0044] See also Figure 2 In the process of determining the height of the screw rod 1, the height of the screw rod 1 is designed according to: (algorithm height - 176 - 60 (40) - 20) mm. The bottom of the screw rod 1 should be designed according to whether the section is a shield section or a station. The shield section is additionally provided with an anti-slip head, which is made of anti-slip material and coated with anti-slip paint. A hand-held turning handle is provided on the top of the screw rod 1 to prevent slipping during construction, thereby improving construction efficiency. The two ends of the screw rod 1 are fixedly connected with joints 2, and the screw rod 1 and the joint 2 are connected by pins to facilitate the removal and direction adjustment of the screw rod 1.

[0045] See also Figure 1 The intelligent line and slope adjustment method of the evolutionary algorithm is a lightweight construction method and device transformation plan that performs theoretical analysis and data deformation processing on the line and slope adjustment data and the interval tunnel scanning data. The theoretical analysis and deformation processing respectively use Fourier series derivation and Simsson's theorem judgment process, which can orderly and deterministically produce the device, automatically obtain the demand data of the track profession in the structural state, and automatically correct the adjustment, and generate the optimal fixed-length tooling according to the line status.

[0046] The purpose of the present invention is to provide a line adjustment and slope adjustment method based on an evolutionary algorithm to design a track frame and an inclined support device. The present invention can effectively shorten the construction period of subway track laying, reduce the workload of fine adjustment, and improve the construction precision and accuracy, thereby improving the construction quality. By applying the intelligent line adjustment and slope adjustment method of the evolutionary algorithm to the track laying process, the civil engineering structure data is reflected in the track tooling size, and a set of high-precision track frame, lead screw, and inclined support length production plans are calculated in a short time by using manual analysis and system adjustment, so that the adaptability of track laying is improved, and the occurrence of serious constraints on the on-site progress is reduced. During the construction process of different intervals, dynamic adjustments are made according to the changes in the main structure of the civil engineering, and the design and selection of the length-setting device are carried out under the premise of wide applicability, so as to improve the full applicability of the rail support frame, lead screw 1, and inclined support, ensure the controllability of the construction process, construction early warning, improve the construction progress, ensure the acceptance quality of the track project, and reduce personnel input and labor intensity.

[0047] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for designing a track frame and an inclined support device based on a line adjustment and slope adjustment method using an evolutionary algorithm, characterized in that: The following steps are involved: S1. Encoding the line population of line adjustment and slope adjustment by using an evolutionary algorithm to screen out an optimal line adjustment and slope adjustment scheme; S2. Scan the tunnel, perform algorithm analysis based on the state of the civil engineering structure, obtain the state of important points, determine the state of the track, and then design the size of the fixed-length split track frame and the inclined support device; S3. Parameterize and visualize the structure derived by the algorithm, and establish a fixed-length device library based on algorithm derivation and numerical simulation; S4. During the construction process of different sections, make dynamic adjustments according to the changes in the main structure of the civil engineering, and design and select the fixed-length device under the premise of wide applicability; S5. After the inclined support device and the screw rod are determined, use point cloud big data to perform rail bottom slope analysis and simulation to make the track in a relatively smooth state; S6. Carry out fixed-length batch production according to the height of the track structure adjusted by the algorithm, and perform type coding; In the S1 coding, a binary coding method is used to generate a coding sequence for representing the plane and longitudinal section parameters, and every ten binary digits in the sequence are used to represent the change of a parameter; In the S2 design of the diagonal support device size, the difference between the civil engineering base plate design elevation and width and the current algorithm is completed. According to the track structure height, the height of the screw rod (1) is determined from the lower rail head 70mm to the rail waist, and then the length of the diagonal support device is determined according to the width; The S5 uses point cloud big data to perform rail bottom slope analysis simulation, and each simulated position can make the rail bottom slope between 1 / 35-1 / 40 and relatively horizontal; In the process of determining the height of the screw rod (1), the height of the screw rod (1) is designed according to: (algorithm height-176-60-20) mm or (algorithm height-176-40-20) mm, and the bottom of the screw rod (1) should be designed according to whether the section is a shield section or a station.

2. The method for designing rail frames and inclined support devices based on the line adjustment and slope adjustment method of evolutionary algorithm according to claim 1 is characterized in that: The shield section is additionally provided with an anti-skid head, the anti-skid head is made of anti-skid material, the surface of the anti-skid head is coated with anti-skid paint, and the top of the screw rod (1) is provided with a handheld turning handle.

3. According to the method for designing a rail frame and an inclined support device based on the line adjustment and slope adjustment method of an evolutionary algorithm according to claim 1, the two ends of the screw rod (1) are fixedly connected with joints (2), and the screw rod (1) and the joint (2) are connected by pins.

4. The method for designing rail frames and inclined support devices based on the line adjustment and slope adjustment method based on evolutionary algorithm according to claim 3 is characterized in that: The intelligent line and slope adjustment method of the evolutionary algorithm is a lightweight construction method and device transformation plan that performs theoretical analysis and data deformation processing on the line and slope adjustment data and the interval tunnel scanning data. The theoretical analysis and data deformation processing respectively use Fourier series derivation and Simsson's theorem judgment process.

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