A roadbed engineering model construction method, system, equipment and medium

Abstract

The present application provides a method, system, equipment and medium for constructing a roadbed engineering model. By acquiring roadbed engineering information, a three-dimensional design model is performed on a target area to obtain a three-dimensional roadbed engineering model of the target area; a dynamic response analysis is performed on the impact load of each roadbed component in the three-dimensional roadbed engineering model to obtain the dynamic settlement of each roadbed component during the three-dimensional design modeling process; the deformation constraint condition of each roadbed component when simulating the mechanical response is determined according to the topological relationship between each roadbed component in the three-dimensional roadbed engineering model and the hierarchical structure of each roadbed component; and then the simulation offset of the settlement value of each roadbed component during the simulated settlement process is determined; and the settlement value of each roadbed component in the three-dimensional roadbed engineering model is updated according to all the simulation offsets. The scheme of the present application can realize the simulation of the nonlinear settlement accumulation of roadbed components in roadbed engineering.

Description

Technical Field

[0001] The present application relates to the technical field of model construction, and more specifically, to a method, system, equipment and medium for constructing a roadbed engineering model. Background Art

[0002] Model building usually uses mathematical, statistical and computer science methods to build models for simulating and optimizing various systems or phenomena. In roadbed engineering, model building technology is widely used to predict and analyze soil mechanical properties, structural stability, settlement behavior, and performance changes during road construction and use. By establishing a soil-structure interaction model, the bearing capacity, durability and seismic performance of the roadbed can be evaluated, thereby providing a scientific basis for design and construction. Commonly used model building technologies include finite element analysis, soil mechanics models, numerical simulation and machine learning, which can handle complex nonlinear problems and large-scale data. In addition, with the development of intelligent technology, dynamic modeling based on real-time monitoring data can realize real-time evaluation of roadbed health status and maintenance decision support. Therefore, model building technology provides important theoretical support and technical guarantee for the design, construction and maintenance of roadbed engineering.

[0003] Existing roadbed engineering model construction usually uses machine learning algorithms such as neural networks and random forests to learn the complex relationship between roadbed settlement and soil properties, loads and environmental factors from historical data, thereby building a data-driven roadbed engineering model. However, in roadbed engineering, various roadbed components will be subject to long-term dynamic loads (such as traffic loads). As the load is continuously applied, the soil under the roadbed components will enter the plastic deformation stage, resulting in nonlinear settlement accumulation of the roadbed components. Therefore, how to realize the simulation of nonlinear settlement accumulation of roadbed components in roadbed engineering has become a difficult problem faced by the industry. Summary of the invention

[0004] The present application provides a method, system, equipment and medium for constructing a roadbed engineering model, which can realize the simulation of nonlinear settlement accumulation of roadbed components in roadbed engineering.

[0005] In a first aspect, the present application provides a method for constructing a roadbed engineering model, comprising the following steps:

[0006] Acquire roadbed engineering information in the target area, perform three-dimensional design modeling on the target area based on the roadbed engineering information, and obtain a three-dimensional roadbed engineering model of the target area;

[0007] Performing dynamic response analysis on the impact load of each roadbed component in the three-dimensional roadbed engineering model to obtain the dynamic settlement of each roadbed component during the three-dimensional design modeling process;

[0008] Determining the deformation constraint condition of each roadbed component when simulating the mechanical response according to the topological relationship between the roadbed components and the hierarchical structure of each roadbed component in the three-dimensional roadbed engineering model;

[0009] Determining the simulation offset of the settlement value of each roadbed component during the simulated settlement process by using the deformation constraint condition of each roadbed component during the simulated mechanical response and the dynamic settlement of all roadbed components during the three-dimensional design modeling process;

[0010] The settlement values ​​of each roadbed component in the three-dimensional roadbed engineering model are updated according to all the simulation offsets.

[0011] In some embodiments, performing three-dimensional design modeling on the target area based on the roadbed engineering information to obtain a three-dimensional roadbed engineering model of the target area specifically includes:

[0012] Initialize 3D design modeling tools;

[0013] Preprocessing the roadbed engineering information to obtain roadbed engineering modeling data;

[0014] A three-dimensional roadbed engineering model of the target area is constructed according to the three-dimensional design modeling tool and the roadbed engineering modeling data.

[0015] In some embodiments, the dynamic response analysis of the impact load of each roadbed component in the three-dimensional roadbed engineering model is performed to obtain the dynamic settlement of each roadbed component during the three-dimensional design modeling process, specifically including:

[0016] Converting the impact load of each roadbed component in the three-dimensional roadbed engineering model into an impact load sequence;

[0017] Performing dynamic analysis on the impact load sequence to obtain the dynamic response strength of each roadbed component in the three-dimensional roadbed engineering model in the vertical direction;

[0018] The dynamic settlement of each roadbed component during the three-dimensional design modeling process is determined according to the dynamic response strength of each roadbed component in the vertical direction in the three-dimensional roadbed engineering model.

[0019] In some embodiments, determining the deformation constraint condition of each roadbed component when simulating the mechanical response according to the topological relationship between the roadbed components in the three-dimensional roadbed engineering model and the hierarchical structure of each roadbed component specifically includes:

[0020] Constructing a topological relationship diagram of the three-dimensional roadbed engineering model through the topological relationship between the various roadbed components in the three-dimensional roadbed engineering model;

[0021] Determining the transfer displacement of each roadbed component when simulating a mechanical response according to the hierarchical structure of each roadbed component;

[0022] The deformation constraint condition of each roadbed component when simulating the mechanical response is determined through the topological relationship diagram and the transmission displacement of each roadbed component when simulating the mechanical response.

[0023] In some embodiments, determining the simulation offset of the settlement value of each roadbed component during the simulated settlement process by using the deformation constraint condition of each roadbed component during the simulated mechanical response and the dynamic settlement of all roadbed components during the three-dimensional design modeling process specifically includes:

[0024] Perform linear fitting on the dynamic settlement of all roadbed components during the 3D design and modeling process to obtain the fitting curve of dynamic settlement;

[0025] The simulation offset of the settlement value of each roadbed component during the simulated settlement process is determined according to the deformation constraint condition of each roadbed component when simulating the mechanical response and the fitting curve.

[0026] In some embodiments, updating the settlement value of each roadbed component in the three-dimensional roadbed engineering model according to all simulation offsets specifically includes:

[0027] Clustering all simulation offsets to obtain multiple data clusters of simulation offsets;

[0028] Determine correction parameters for the settlement values ​​of each roadbed component in the three-dimensional roadbed engineering model based on all data clusters;

[0029] The settlement values ​​of each roadbed component in the three-dimensional roadbed engineering model are updated by all correction parameters.

[0030] In some embodiments, the target area is a railway roadbed engineering area.

[0031] In a second aspect, the present application provides a roadbed engineering model construction system, comprising:

[0032] A three-dimensional modeling module is used to obtain the roadbed engineering information in the target area, perform three-dimensional design modeling on the target area based on the roadbed engineering information, and obtain a three-dimensional roadbed engineering model of the target area;

[0033] A processing module, used for performing dynamic response analysis on the impact load of each roadbed component in the three-dimensional roadbed engineering model to obtain the dynamic settlement of each roadbed component during the three-dimensional design modeling process;

[0034] The processing module is further used to determine the deformation constraint condition of each roadbed component when simulating the mechanical response according to the topological relationship between the roadbed components and the hierarchical structure of each roadbed component in the three-dimensional roadbed engineering model;

[0035] The processing module is further used to determine the simulation offset of the settlement value of each roadbed component during the simulated settlement process through the deformation constraint condition of each roadbed component during the simulated mechanical response and the dynamic settlement of all roadbed components during the three-dimensional design modeling process;

[0036] The execution module is used to update the settlement value of each roadbed component in the three-dimensional roadbed engineering model according to all the simulation offsets.

[0037] In a third aspect, the present application provides a computer device, comprising a memory and a processor, wherein the memory stores codes, and the processor is configured to obtain the codes and execute the above-mentioned roadbed engineering model construction method.

[0038] In a fourth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the above-mentioned roadbed engineering model construction method is implemented.

[0039] The technical solution provided by the embodiments disclosed in this application has the following beneficial effects:

[0040] In the roadbed engineering model construction method, system, equipment and medium provided in the present application, by acquiring the roadbed engineering information in the target area, three-dimensional design modeling is performed on the target area based on the roadbed engineering information to obtain a three-dimensional roadbed engineering model of the target area; a dynamic response analysis is performed on the impact load of each roadbed component in the three-dimensional roadbed engineering model to obtain the dynamic settlement of each roadbed component during the three-dimensional design modeling process; the deformation constraint condition of each roadbed component when simulating mechanical response is determined according to the topological relationship of the interconnections between each roadbed component in the three-dimensional roadbed engineering model and the hierarchical structure of each roadbed component; the simulation offset of the settlement value of each roadbed component in the simulated settlement process is determined according to the deformation constraint condition of each roadbed component when simulating mechanical response and the dynamic settlement of all roadbed components during the three-dimensional design modeling process; the settlement value of each roadbed component in the three-dimensional roadbed engineering model is updated according to all the simulation offsets.

[0041] It can be seen that in this application, the simulation offset of the settlement value of each roadbed component in the simulation settlement process can be determined by the deformation constraint conditions of each roadbed component when simulating the mechanical response and the dynamic settlement of all roadbed components in the three-dimensional design modeling process; wherein, firstly, the three-dimensional design modeling of the target area is carried out based on the roadbed engineering information to obtain a three-dimensional roadbed engineering model of the target area, which provides a digital carrier for nonlinear settlement analysis and breaks through the limitations of traditional two-dimensional models in characterizing the coupling effects of complex structures; secondly, by performing a dynamic response analysis on the impact loads of each roadbed component in the three-dimensional roadbed engineering model, the dynamic force changes caused by the impact loads on the roadbed components in the vertical direction can be simulated, and then the dynamic settlement of each roadbed component can be calculated. The nonlinear characteristics of settlement changing with load can be captured through dynamic response analysis; then, By analyzing the topological relationship and hierarchical structure of each roadbed component in the three-dimensional roadbed engineering model, the deformation constraint conditions of each roadbed component when simulating the mechanical response are determined to ensure that the settlement calculation conforms to the structural force characteristics. This process can accurately reflect the force transmission path of the interaction between the roadbed components, avoid the error of independent settlement of a single roadbed component, and thus improve the accuracy of settlement simulation; then, the simulation offset of the settlement value of each roadbed component in the simulated settlement process is determined in combination with the deformation constraint conditions of each roadbed component and the dynamic settlement meter. The simulation offset can effectively correct the error caused by the nonlinear settlement accumulation in the settlement simulation, so that the settlement value is more in line with the actual working conditions; finally, the settlement value of each roadbed component in the three-dimensional roadbed engineering model is updated according to all the simulation offsets; in summary, the scheme of the present application can realize the simulation of nonlinear settlement accumulation of roadbed components in roadbed engineering. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is an exemplary flow chart of a method for constructing a roadbed engineering model according to some embodiments of the present application;

[0043] Figure 2 It is a schematic diagram of a process for determining the dynamic settlement of a roadbed component during a three-dimensional design modeling process according to some embodiments of the present application;

[0044] Figure 3 It is a schematic diagram of a process for determining deformation constraint conditions of a roadbed component when simulating mechanical response according to some embodiments of the present application;

[0045] Figure 4 It is a structural schematic diagram of a roadbed engineering model construction system according to some embodiments of the present application;

[0046] Figure 5 It is a structural schematic diagram of a computer device for implementing a roadbed engineering model building method according to some embodiments of the present application. DETAILED DESCRIPTION

[0047] In order to better understand the technical solution of the present application, the technical solution of the present application will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0048] refer to Figure 1 , which is an exemplary flow chart of a method for constructing a roadbed engineering model according to some embodiments of the present application. The roadbed engineering model construction method 100 mainly includes the following steps:

[0049] In step 101, the roadbed engineering information in the target area is obtained, and three-dimensional design modeling is performed on the target area based on the roadbed engineering information to obtain a three-dimensional roadbed engineering model of the target area.

[0050] During specific implementation, the roadbed engineering information in the target area is obtained from the roadbed design database.

[0051] It should be noted that the roadbed engineering information described in the present application represents information composed of two-dimensional roadbed design drawing data and terrain data of the roadbed engineering in the target area, wherein the terrain data is composed of point cloud data in the target area, wherein the target area is the railway roadbed engineering area.

[0052] In some embodiments, three-dimensional design modeling is performed on the target area based on the roadbed engineering information to obtain a three-dimensional roadbed engineering model of the target area, which can be achieved by the following steps:

[0053] Initialize 3D design modeling tools;

[0054] Preprocessing the roadbed engineering information to obtain roadbed engineering modeling data;

[0055] A three-dimensional roadbed engineering model of the target area is constructed according to the three-dimensional design modeling tool and the roadbed engineering modeling data.

[0056] In specific implementation, initializing the 3D design modeling tool can be achieved in the following manner, namely: selecting a 3D design modeling tool (such as AutoCAD, Civil 3D, Revit, Rhino, etc.), and then setting parameters such as the coordinate system, unit, and scale in the 3D design modeling tool to ensure that the design information is consistent with the roadbed project in the target area.

[0057] In specific implementation, the roadbed engineering information is preprocessed to obtain the roadbed engineering modeling data, which can be achieved in the following manner, namely: first, the terrain data in the roadbed engineering information is converted into a format using existing GIS tools (such as ArcGIS, QGIS, etc.) to obtain three-dimensional terrain data of the target area; secondly, the two-dimensional roadbed design drawing data in the roadbed engineering information is converted into three-dimensional data through tools such as AutoCAD, and the obtained three-dimensional data is used as three-dimensional roadbed data; then, a collection of three-dimensional terrain data and three-dimensional roadbed data is used as roadbed engineering modeling data. Other methods can also be used in other embodiments, which are not limited here.

[0058] In specific implementation, constructing a three-dimensional roadbed engineering model of the target area according to the three-dimensional design modeling tool and the roadbed engineering modeling data can be achieved in the following manner, namely: first, importing the three-dimensional terrain data in the roadbed engineering modeling data into the three-dimensional design modeling tool, and then generating a three-dimensional terrain surface of the target area; secondly, importing the three-dimensional roadbed data in the roadbed engineering modeling data into the three-dimensional design modeling tool, and then generating a three-dimensional roadbed structure model of the target area, wherein the three-dimensional roadbed structure model includes multiple roadbed components, and the types of roadbed components include base bed components, supporting components, foundation components, slope components and drainage components; the three-dimensional design modeling tool is used to adjust the position and angle of the three-dimensional roadbed structure model on the three-dimensional terrain surface; then, material properties (such as density, elastic modulus, compressive strength, etc.) are set for various roadbed components in the three-dimensional roadbed structure model; finally, the model obtained after three-dimensional modeling is used as the three-dimensional roadbed engineering model of the target area; other methods can also be used in other embodiments, which will not be repeated here.

[0059] It should be noted that the three-dimensional roadbed engineering model described in this application is a three-dimensional design model of the roadbed engineering in the target area.

[0060] In step 102, a dynamic response analysis is performed on the impact load of each roadbed component in the three-dimensional roadbed engineering model to obtain the dynamic settlement of each roadbed component during the three-dimensional design modeling process.

[0061] In some embodiments, reference Figure 2 As shown in FIG. 1 , this figure is a schematic diagram of a process for determining the dynamic settlement of a roadbed component during a three-dimensional design and modeling process in some embodiments of the present application. In this embodiment, a dynamic response analysis is performed on the impact load of each roadbed component in the three-dimensional roadbed engineering model to obtain the dynamic settlement of each roadbed component during the three-dimensional design and modeling process. The following steps can be used to achieve this:

[0062] First, in step 1021, the impact load of each roadbed component in the three-dimensional roadbed engineering model is converted into an impact load sequence;

[0063] Next, in step 1022, the impact load sequence is dynamically analyzed to obtain the dynamic response strength of each roadbed component in the three-dimensional roadbed engineering model in the vertical direction;

[0064] Then, in step 1023, the dynamic settlement of each roadbed component during the three-dimensional design modeling process is determined according to the dynamic response strength of each roadbed component in the three-dimensional roadbed engineering model in the vertical direction.

[0065] It should be noted that the impact load described in this application refers to a high-intensity load applied to the roadbed component in a short period of time. The instantaneous pressure data of the physical roadbed components in the roadbed project in the past month can be measured by a piezoelectric sensor, and a peak detection algorithm can be used to extract multiple peak values ​​of instantaneous pressure from the instantaneous pressure data, and the average of all peak values ​​is used as the impact load of the roadbed component.

[0066] In specific implementation, the impact load of each roadbed component in the three-dimensional roadbed engineering model is converted into an impact load sequence by sorting all impact loads in ascending order and using the sorted sequence as the impact load sequence.

[0067] In a specific implementation, the impact load sequence is dynamically analyzed to obtain the dynamic response strength of each roadbed component in the three-dimensional roadbed engineering model in the vertical direction. The dynamic response strength can be achieved in the following manner, namely: based on the existing sliding window technology, the sliding step is set to 1, and sliding windows of different sizes are set, a sliding window is selected as the selected sliding window, the selected sliding window is slid to the impact load sequence, the selected sliding window is aligned with the first impact load in the impact load sequence, the maximum impact load and the minimum impact load are extracted from the selected sliding window, and the difference between the maximum impact load and the minimum impact load is used as the first impact load in the impact load sequence under the selected sliding window. The vertical response coefficient of the load is determined by moving the sliding windows in sequence until the selected sliding window is aligned with the last impact load in the impact load sequence and stops sliding, thereby obtaining the vertical response coefficient of each impact load in the impact load sequence under the selected sliding window, and continuing to determine the vertical response coefficient of each impact load in the impact load sequence under the remaining sliding windows. Finally, the vertical response coefficients of the impact loads under different sliding windows are averaged, and the obtained average is used as the dynamic response strength of the roadbed component corresponding to the impact load in the vertical direction, thereby obtaining the dynamic response strength of each roadbed component in the three-dimensional roadbed engineering model in the vertical direction. Other methods can also be used in other embodiments, which are not limited here.

[0068] It should be noted that the dynamic response strength described in this application represents the response strength of the dynamic displacement caused by the impact load on the roadbed component in the vertical direction. The greater the dynamic response strength, the higher the response strength of the dynamic displacement caused by the impact load on the roadbed component in the vertical direction, and vice versa.

[0069] In addition, it should be noted that the size setting of the sliding window in the present application can be respectively the value obtained by taking the square root of the total number of impact loads in the impact load sequence, the value obtained by dividing the square root of the total number of impact loads in the impact load sequence by 2 and rounding the value obtained by dividing the square root of the total number of impact loads in the impact load sequence by 3. Other methods can also be used to achieve this in other embodiments, which will not be repeated here.

[0070] In specific implementation, the dynamic settlement of each roadbed component during the three-dimensional design and modeling process is determined according to the dynamic response strength of each roadbed component in the vertical direction within the three-dimensional roadbed engineering model. This can be achieved in the following manner, namely: multiplying the dynamic response strength of each roadbed component and the impact load, and then dividing the multiplied value by the length of each roadbed component, and using the divided values ​​as the dynamic settlement of each roadbed component during the three-dimensional design and modeling process. Other methods may also be used in other embodiments, which are not limited here.

[0071] It should be noted that the dynamic settlement described in the present application represents a parameter quantity that simulates the dynamic displacement of a roadbed component caused by an impact load in the vertical direction.

[0072] In step 103, the deformation constraint condition of each roadbed component when simulating the mechanical response is determined according to the topological relationship between the roadbed components in the three-dimensional roadbed engineering model and the hierarchical structure of each roadbed component.

[0073] In some embodiments, reference Figure 3 As shown in FIG. 1 , this figure is a schematic diagram of a flow chart of determining the deformation constraint conditions of the roadbed components when simulating the mechanical response in some embodiments of the present application. In this embodiment, the deformation constraint conditions of each roadbed component when simulating the mechanical response are determined according to the topological relationship between the roadbed components in the three-dimensional roadbed engineering model and the hierarchical structure of each roadbed component, which can be implemented by the following steps:

[0074] Constructing a topological relationship diagram of the three-dimensional roadbed engineering model through the topological relationship between the various roadbed components in the three-dimensional roadbed engineering model;

[0075] Determining the transfer displacement of each roadbed component when simulating a mechanical response according to the hierarchical structure of each roadbed component;

[0076] The deformation constraint condition of each roadbed component when simulating the mechanical response is determined through the topological relationship diagram and the transmission displacement of each roadbed component when simulating the mechanical response.

[0077] It should be noted that the topological relationship described in the present application represents the spatial layout relationship formed by roadbed components according to different connection methods, wherein the connection methods include rigid connection, elastic connection, hinged connection and sliding connection, etc.

[0078] In specific implementation, the topological relationship diagram of the three-dimensional roadbed engineering model is constructed through the topological relationship between the various roadbed components in the three-dimensional roadbed engineering model. This can be achieved in the following manner, namely: based on the graph theory method, each roadbed component in the three-dimensional roadbed engineering model is abstracted as a node of the topological diagram, and then the topological relationship between the roadbed components is abstracted as an edge, and the connection types of rigid connection, elastic connection, hinged connection and sliding connection are assigned values ​​of 1, 2, 3, and 4 respectively, so that the obtained topological network structure is used as the topological relationship diagram of the three-dimensional roadbed engineering model. Other methods can also be used in other embodiments, which are not limited here.

[0079] It should be noted that the topological relationship diagram described in the present application represents a network topological structure diagram formed between various roadbed components in a three-dimensional roadbed engineering model.

[0080] It should also be noted that the hierarchical structure described in the present application represents a structure in which roadbed components are organized in a hierarchical manner according to function, material properties and bearing capacity.

[0081] In specific implementation, determining the transfer displacement of each roadbed component when simulating mechanical response according to the hierarchical structure of each roadbed component can be achieved in the following manner, namely: obtaining the geometric parameters (such as size, thickness) and material property data (such as material type, Young's modulus and Poisson's ratio) of the hierarchical structure of each roadbed component, and then using a finite element analysis tool to perform static calculations on each roadbed component to obtain the displacement distribution of each roadbed component (that is, the displacement value of each finite element unit in the roadbed component during finite element analysis), and then calculating the mean of the displacement distribution of each roadbed component, and then using the obtained mean as the transfer displacement of each roadbed component when simulating mechanical response. In other embodiments, other methods can also be used for implementation, which will not be repeated here.

[0082] It should be noted that the transfer displacement described in the present application refers to the displacement generated by the transfer of force between different levels of structures through the contact surface when simulating the roadbed component under load.

[0083] In specific implementation, the deformation constraint condition of each roadbed component when simulating mechanical response is determined by the topological relationship diagram and the transferred displacement of each roadbed component when simulating mechanical response. This can be achieved in the following manner, namely: select a roadbed component as the selected roadbed component, calculate the distance from the node in the topological relationship diagram corresponding to the selected roadbed component to the farthest node in the topological relationship diagram, multiply the obtained distance by the transferred displacement of the selected roadbed component when simulating mechanical response, and use the multiplied value as the deformation constraint condition of the selected roadbed component when simulating mechanical response, and continue to determine the deformation constraint conditions of the remaining roadbed components when simulating mechanical response. Other methods can also be used in other embodiments, which will not be repeated here.

[0084] It should be noted that the deformation constraint conditions described in the present application represent conditional parameters that limit the deformation of roadbed components under load when simulating mechanical response.

[0085] In step 104, the simulation offset of the settlement value of each roadbed component during the simulated settlement process is determined based on the deformation constraint conditions of each roadbed component when simulating the mechanical response and the dynamic settlement of all roadbed components during the three-dimensional design modeling process.

[0086] In some embodiments, the simulation offset of the settlement value of each roadbed component during the simulated settlement process is determined by the deformation constraint condition of each roadbed component during the simulated mechanical response and the dynamic settlement of all roadbed components during the three-dimensional design modeling process. The following steps can be used to achieve this:

[0087] Perform linear fitting on the dynamic settlement of all roadbed components during the 3D design and modeling process to obtain the fitting curve of dynamic settlement;

[0088] The simulation offset of the settlement value of each roadbed component during the simulated settlement process is determined according to the deformation constraint condition of each roadbed component when simulating the mechanical response and the fitting curve.

[0089] In specific implementation, linear fitting is performed on the dynamic settlement of all roadbed components during the three-dimensional design and modeling process to obtain a fitting curve of the dynamic settlement. This can be achieved in the following manner, namely: an existing linear fitting algorithm (such as a least squares support vector machine algorithm) is used to perform linear fitting on all dynamic settlements, thereby obtaining a fitting curve of the dynamic settlement, wherein each value on the fitting curve is used as a dynamic settlement fitting value, and each dynamic settlement fitting value corresponds to a dynamic settlement. Other methods may also be used in other embodiments, which are not limited here.

[0090] In specific implementation, the simulation offset of the settlement value of each roadbed component in the simulated settlement process is determined according to the deformation constraint condition of each roadbed component when simulating the mechanical response and the fitting curve, which can be achieved in the following manner, namely: select a dynamic settlement as the selected dynamic settlement, subtract the selected dynamic settlement from the dynamic settlement fitting value on the corresponding fitting curve and take the absolute value, then divide the value obtained after taking the absolute value by the deformation constraint condition of the roadbed component corresponding to the selected dynamic settlement when simulating the mechanical response, and use the value obtained by division as the simulation offset of the settlement value of the roadbed component corresponding to the selected dynamic settlement in the simulated settlement process, and continue to determine the simulation offset of the settlement value of the roadbed component corresponding to the remaining dynamic settlement in the simulated settlement process. Other methods can also be used in other embodiments, which will not be repeated here.

[0091] It should be noted that the simulation offset described in the present application represents the offset parameter amount generated by the settlement value of the roadbed component during the simulated settlement process due to the accumulation of nonlinear settlement.

[0092] In step 105, the settlement values ​​of each roadbed component in the three-dimensional roadbed engineering model are updated according to all the simulation offsets.

[0093] In some embodiments, updating the settlement value of each roadbed component in the three-dimensional roadbed engineering model according to all simulation offsets can be achieved by using the following steps:

[0094] Clustering all simulation offsets to obtain multiple data clusters of simulation offsets;

[0095] Determine correction parameters for the settlement values ​​of each roadbed component in the three-dimensional roadbed engineering model based on all data clusters;

[0096] The settlement values ​​of each roadbed component in the three-dimensional roadbed engineering model are updated by all correction parameters.

[0097] In the specific implementation, clustering all the simulated offsets to obtain multiple data clusters of the simulated offsets can be achieved in the following way, namely: using an existing clustering algorithm (such as hierarchical clustering) to cluster all the simulated offsets to obtain multiple data clusters of the simulated offsets, wherein each data cluster is composed of multiple simulated offsets, wherein each simulated offset corresponds to the settlement value of a roadbed component during the simulated settlement process.

[0098] In specific implementation, the correction parameters of the settlement values ​​of each roadbed component in the three-dimensional roadbed engineering model are determined based on all data clusters in the following manner, namely: a simulation offset is selected as the selected simulation offset, and the distance between the cluster center of the data cluster where the selected simulation offset is located and the selected simulation offset is used as the correction parameter of the settlement value of the roadbed component corresponding to the selected simulation offset during the simulated settlement process, and the correction parameters of the settlement values ​​of the roadbed components corresponding to the remaining simulation offsets during the simulated settlement process are continued to be determined.

[0099] In specific implementation, updating the settlement value of each roadbed component in the three-dimensional roadbed engineering model through all the correction parameters can be achieved in the following manner, namely: selecting a roadbed component as the selected roadbed component, adding the settlement value of the selected roadbed component in the simulated settlement process to the correction parameter of the settlement value of the roadbed component in the simulated settlement process, and using the added value as the new settlement value of the selected roadbed component in the simulated settlement process, and continuing to determine the new settlement values ​​of the remaining roadbed components in the simulated settlement process.

[0100] In addition, in another aspect of the present application, in some embodiments, the present application provides a roadbed engineering model construction system, referring to Figure 4 , which is a schematic diagram of the structure of a roadbed engineering model construction system according to some embodiments of the present application. The roadbed engineering model construction system 400 includes: a three-dimensional modeling module 401, a processing module 402 and an execution module 403, which are described as follows:

[0101] The three-dimensional modeling module 401 in the present application is mainly used to obtain the roadbed engineering information in the target area, perform three-dimensional design modeling on the target area based on the roadbed engineering information, and obtain a three-dimensional roadbed engineering model of the target area;

[0102] Processing module 402, in the present application, is used to perform dynamic response analysis on the impact load of each roadbed component in the three-dimensional roadbed engineering model to obtain the dynamic settlement of each roadbed component during the three-dimensional design modeling process;

[0103] It should be noted that the processing module 402 in the present application is also used to determine the deformation constraint condition of each roadbed component when simulating the mechanical response according to the topological relationship between the roadbed components in the three-dimensional roadbed engineering model and the hierarchical structure of each roadbed component;

[0104] In addition, the processing module 402 in the present application is also used to determine the simulation offset of the settlement value of each roadbed component during the simulated settlement process through the deformation constraint condition of each roadbed component when simulating the mechanical response and the dynamic settlement of all roadbed components during the three-dimensional design modeling process;

[0105] Execution module 403, in the present application, the execution module 403 is mainly used to update the settlement value of each roadbed component in the three-dimensional roadbed engineering model according to all simulation offsets.

[0106] In addition, the present application also provides a computer device, which includes a memory and a processor, the memory stores codes, and the processor is configured to obtain the codes and execute the above-mentioned roadbed engineering model construction method.

[0107] In some embodiments, reference Figure 5 , which is a schematic diagram of the structure of a computer device for implementing a roadbed engineering model construction method according to some embodiments of the present application. The roadbed engineering model construction method in the above embodiment can be Figure 5 The computer device 500 shown in the figure is implemented, and the computer device 500 includes at least one processor 501, a communication bus 502, a memory 503 and at least one communication interface 504.

[0108] The processor 501 may be a general-purpose central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more processors for controlling the execution of the roadbed engineering model construction method in the present application.

[0109] The communication bus 502 may be used to transmit information between the above-mentioned components.

[0110] The memory 503 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, an optical disc storage (including a compressed optical disc, a laser disc, an optical disc, a digital versatile disc, a Blu-ray disc, etc.), a magnetic disk or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of an instruction or data structure and can be accessed by a computer, but is not limited thereto. The memory 503 may exist independently and be connected to the processor 501 via the communication bus 502. The memory 503 may also be integrated with the processor 501.

[0111] The memory 503 is used to store the program code for executing the solution of the present application, and the execution is controlled by the processor 501. The processor 501 is used to execute the program code stored in the memory 503. The program code may include one or more software modules. The method described in the above method embodiment can be implemented by the processor 501 and one or more software modules in the program code in the memory 503.

[0112] The communication interface 504 uses any transceiver or other device for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.

[0113] In a specific implementation, as an embodiment, a computer device may include multiple processors, each of which may be a single-CPU processor or a multi-CPU processor. The processor here may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0114] The above-mentioned computer device may be a general-purpose computer device or a special-purpose computer device. In a specific implementation, the computer device may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, a communication device or an embedded device. The embodiment of the present application does not limit the type of computer device.

[0115] In addition, the present application also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the above-mentioned roadbed engineering model construction method is implemented.

[0116] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0117] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for constructing a roadbed engineering model, characterized in that: The steps include: Acquire roadbed engineering information in the target area, perform three-dimensional design modeling on the target area based on the roadbed engineering information, and obtain a three-dimensional roadbed engineering model of the target area; Performing dynamic response analysis on the impact load of each roadbed component in the three-dimensional roadbed engineering model to obtain the dynamic settlement of each roadbed component during the three-dimensional design modeling process; Determining the deformation constraint condition of each roadbed component when simulating the mechanical response according to the topological relationship between the roadbed components and the hierarchical structure of each roadbed component in the three-dimensional roadbed engineering model; Determining the simulation offset of the settlement value of each roadbed component during the simulated settlement process by using the deformation constraint condition of each roadbed component during the simulated mechanical response and the dynamic settlement of all roadbed components during the three-dimensional design modeling process; updating the settlement value of each roadbed component in the three-dimensional roadbed engineering model according to all the simulation offsets; Wherein, determining the deformation constraint condition of each roadbed component when simulating the mechanical response according to the topological relationship between the roadbed components in the three-dimensional roadbed engineering model and the hierarchical structure of each roadbed component specifically includes: Constructing a topological relationship diagram of the three-dimensional roadbed engineering model through the topological relationship between the various roadbed components in the three-dimensional roadbed engineering model; Determining the transfer displacement of each roadbed component when simulating a mechanical response according to the hierarchical structure of each roadbed component; Determining the deformation constraint condition of each roadbed component when simulating the mechanical response through the topological relationship diagram and the transmission displacement of each roadbed component when simulating the mechanical response; Wherein, determining the simulation offset of the settlement value of each roadbed component during the simulated settlement process through the deformation constraint condition of each roadbed component during the simulated mechanical response and the dynamic settlement of all roadbed components during the three-dimensional design modeling process specifically includes: Perform linear fitting on the dynamic settlement of all roadbed components during the 3D design and modeling process to obtain the fitting curve of dynamic settlement; The simulation offset of the settlement value of each roadbed component during the simulated settlement process is determined according to the deformation constraint condition of each roadbed component when simulating the mechanical response and the fitting curve.

2. The method according to claim 1, characterized in that Based on the roadbed engineering information, three-dimensional design modeling is performed on the target area to obtain a three-dimensional roadbed engineering model of the target area, which specifically includes: Initialize 3D design modeling tools; Preprocessing the roadbed engineering information to obtain roadbed engineering modeling data; A three-dimensional roadbed engineering model of the target area is constructed according to the three-dimensional design modeling tool and the roadbed engineering modeling data.

3. The method according to claim 1, characterized in that The dynamic response analysis of the impact load of each roadbed component in the three-dimensional roadbed engineering model is performed to obtain the dynamic settlement of each roadbed component during the three-dimensional design modeling process, which specifically includes: Converting the impact load of each roadbed component in the three-dimensional roadbed engineering model into an impact load sequence; Performing dynamic analysis on the impact load sequence to obtain the dynamic response strength of each roadbed component in the three-dimensional roadbed engineering model in the vertical direction; The dynamic settlement of each roadbed component during the three-dimensional design modeling process is determined according to the dynamic response strength of each roadbed component in the vertical direction in the three-dimensional roadbed engineering model.

4. The method according to claim 1, characterized in that Updating the settlement values ​​of each roadbed component in the three-dimensional roadbed engineering model according to all simulation offsets specifically includes: Clustering all simulation offsets to obtain multiple data clusters of simulation offsets; Determining correction parameters for settlement values ​​of each roadbed component in the three-dimensional roadbed engineering model based on all data clusters; The settlement values ​​of each roadbed component in the three-dimensional roadbed engineering model are updated by all correction parameters.

5. The method according to claim 1, characterized in that The target area is a railway roadbed engineering area.

6. A roadbed engineering model construction system, which uses the method described in any one of claims 1 to 5 to construct a roadbed engineering model, characterized in that: The system includes: A three-dimensional modeling module is used to obtain the roadbed engineering information in the target area, perform three-dimensional design modeling on the target area based on the roadbed engineering information, and obtain a three-dimensional roadbed engineering model of the target area; A processing module, used for performing dynamic response analysis on the impact load of each roadbed component in the three-dimensional roadbed engineering model to obtain the dynamic settlement of each roadbed component during the three-dimensional design modeling process; The processing module is further used to determine the deformation constraint condition of each roadbed component when simulating the mechanical response according to the topological relationship between the roadbed components and the hierarchical structure of each roadbed component in the three-dimensional roadbed engineering model; The processing module is further used to determine the simulation offset of the settlement value of each roadbed component during the simulated settlement process through the deformation constraint condition of each roadbed component during the simulated mechanical response and the dynamic settlement of all roadbed components during the three-dimensional design modeling process; The execution module is used to update the settlement value of each roadbed component in the three-dimensional roadbed engineering model according to all the simulation offsets.

7. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the roadbed engineering model construction method described in any one of claims 1 to 5 is implemented.

8. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method for constructing a roadbed engineering model according to any one of claims 1 to 5 is implemented.

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