CN-121093712-B - Digital twin simulation system and method for asphalt pavement repair

CN121093712BCN 121093712 BCN121093712 BCN 121093712BCN-121093712-B

Abstract

The invention discloses a digital twin simulation system and a digital twin simulation method for asphalt pavement restoration, which relate to the technical field of pavement restoration and comprise a data acquisition module, a data processing module and a data processing module, wherein the data acquisition module is used for acquiring multi-source data and traffic data of an asphalt pavement; the system comprises a digital twin modeling module, a repair scheme design module, a simulation module and a scheme evaluation module, wherein the digital twin modeling module is used for constructing a digital twin model of an asphalt pavement by using a three-dimensional modeling technology, the repair scheme design module is used for outputting an asphalt pavement repair scheme based on a trained repair scheme recommended model, the simulation module is used for simulating the designed repair scheme on the digital twin model to generate simulation result data, and the scheme evaluation module is used for evaluating the result data of the simulation module based on the trained evaluation model to give an evaluation score of the scheme. According to the invention, through real-time data acquisition and digital twin modeling, an asphalt pavement repair scheme is optimized, mechanical, material aging and traffic influence are analyzed, repair accuracy is improved, construction safety is enhanced, and efficiency is improved.

Inventors

WANG LIBO
ZHANG WENKANG
XU DONG
WU ZHAOXUE
XIA YANGYANG
WEI LIANCHENG
WANG TAIWEI
WANG XIANGUI
YANG WEN

Assignees

安徽建工三建集团有限公司
安徽农业大学

Dates

Publication Date: 20260508
Application Date: 20250925

Claims (9)

1. A digital twin simulation system for asphalt pavement repair, comprising: The data acquisition module is used for acquiring multi-source data and traffic data of the asphalt pavement; The digital twin modeling module is electrically connected with the data acquisition module, receives the acquired data, builds a digital twin model of the asphalt pavement by using a three-dimensional modeling technology, presents the actual state of the pavement in a digital form, and updates the model in real time according to the acquired data; The repair scheme design module is used for outputting an asphalt pavement repair scheme based on a digital twin model and combining the disease type, severity and traffic demand of the asphalt pavement and a trained repair scheme recommendation model; the simulation module is connected with the digital twin modeling module and the repair scheme design module, and is used for simulating the designed repair scheme on the digital twin model, simulating the mechanical property change of the pavement, the material aging process and the traffic passing influence in the repair process, and generating simulation result data; The scheme evaluation module is used for receiving the result data of the simulation module, evaluating the result data of the simulation module based on the trained evaluation model, giving an evaluation score of the scheme, judging whether the scheme reaches the expected effect standard based on the evaluation score of the scheme, outputting an asphalt pavement repair scheme for constructors to refer to and execute if the scheme reaches the expected effect standard, and adjusting the asphalt pavement repair scheme if the scheme does not reach the expected effect standard; the digital twin modeling module specifically comprises: The data receiving and preprocessing unit is used for receiving multi-source data of the asphalt pavement from the data acquisition module, including pavement geometry, cracks, pit diseases, humiture and traffic flow data, cleaning, checking and formatting the received data, and removing noise data; The three-dimensional modeling technology application unit is used for generating a pavement basic geometric model by utilizing a CAD modeling tool based on pavement geometric shape data, adding crack and pit defect data into the basic model, generating a digital twin model, and displaying the defect distribution and severity of the pavement; Combining material parameters of the asphalt pavement with environmental factors to form a virtual model consistent with the actual pavement behavior, and combining a three-dimensional modeling technology with a virtual reality technology; And updating real-time data, namely updating the digital twin model in real time according to the newly acquired data by connecting the digital twin model with the data acquisition module in real time, and dynamically correcting the road surface state in the model according to the external environment change and the road surface actual state change.
2. The digital twin simulation system for asphalt pavement repair according to claim 1, wherein the repair plan design module specifically comprises: The disease identification and classification unit is used for acquiring the disease type of the asphalt pavement and the distribution and severity of the diseases based on the data in the digital twin model, classifying the diseases of different types, and marking the positions and the influence ranges of the diseases in the model; The repair demand analysis unit is used for acquiring traffic load and demand of a road by combining traffic flow data, judging whether the road surface needs comprehensive repair, local repair and measures for reinforcing only based on road surface demand analysis according to the service condition, disease severity and traffic demand of the road surface; and the repair process selection unit is used for selecting a corresponding repair process based on a preset repair process library according to the type and severity of the pavement diseases and planning a construction flow according to the selected repair process.
3. The digital twin simulation system for asphalt pavement repair according to claim 2, wherein the repair demand analysis unit specifically comprises: establishing a comprehensive repair demand analysis model, combining traffic flow, road surface disease severity and road surface service conditions to judge whether comprehensive repair, local repair and reinforcement measures are needed, acquiring weights of different factors based on a hierarchical analysis method, constructing a judgment matrix of the factors, obtaining the weight of each factor through calculation of the matrix, taking the weight of each factor and taking the weight as input, and taking a repair demand score as output; And under the same condition of analysis history, grading data of different types of repair are carried out, a threshold value of the repair demand grading is obtained through regression analysis, the repair demand grading is compared with the threshold value, and then whether the pavement needs comprehensive repair, local repair or reinforcement measures is judged.
4. The digital twin simulation system for asphalt pavement repair according to claim 1, wherein the simulation module specifically comprises: The mechanical property simulation unit is used for constructing a finite element model based on the existing geometric shape and material characteristics of the pavement, inputting traffic load data, simulating the influence of traffic flow on the pavement, simulating the stress condition of the pavement under different repairing schemes, and evaluating the improvement of the repairing effect on the mechanical property of the pavement; The material aging and damage simulation unit is used for simulating the aging process of the asphalt material according to the temperature and humidity data and the service life of the pavement, analyzing the influence of a repair process on the material performance by combining the disease type and severity, and comparing the aging condition and the performance change of the material before and after repair; The traffic influence simulation unit simulates traffic conditions when different repair schemes are implemented, introduces environmental factors into a simulation model according to real-time climate data, and simulates the influence of the environmental factors on the mechanical properties of the pavement, the ageing of materials and the repair effect; and the multi-scene simulation unit simulates different repair schemes based on different traffic flow and temperature and humidity conditions, compares the effects of the repair schemes by simulating a plurality of scenes, and selects an optimal scheme.
5. The digital twin simulation system for asphalt pavement repair according to claim 4, wherein the scheme evaluation module specifically comprises: The simulation result evaluation unit is used for receiving simulation result data of the repair scheme from the simulation module, analyzing and evaluating the simulation result by utilizing a pre-trained evaluation model, quantifying the evaluation result and obtaining an evaluation score; And the expected effect judging unit is used for judging whether the repairing scheme meets the expected effect standard or not by comparing the evaluation score with a preset standard, if the scheme meets the standard, continuing to execute, and if the scheme does not meet the standard, adjusting the repairing scheme, and carrying out repairing scheme design and simulation again until the scheme meets the standard.
6. The digital twin simulation system for asphalt pavement repair according to claim 5, wherein the receiving simulation result data of the repair scheme from the simulation module, analyzing and evaluating the simulation result by using a pre-trained evaluation model, quantifying the evaluation result, and obtaining the evaluation score specifically comprises: Wherein, the evaluation model formula is: , in the formula, Is the total evaluation score of the score, Is the first The value of the individual evaluation factor is determined, Is the first The weight of the individual factors is determined, Is the number of evaluation factors to be considered, In order to judge the result of the judgment, Is a preset standard mark.
7. A digital twin simulation method for asphalt pavement repair, which is applicable to the digital twin simulation system for asphalt pavement repair according to any one of claims 1 to 6, and is characterized by comprising: s1, acquiring data, namely acquiring asphalt pavement and traffic data, wherein the data comprise pavement geometric shapes, disease types, traffic flow and temperature and humidity information; s2, digital twin modeling, namely generating a digital twin model of the asphalt pavement through a three-dimensional modeling technology and a virtual reality technology, and updating in real time; s3, designing a repairing scheme, identifying and classifying diseases based on a digital twin model, and selecting a repairing process by combining traffic load and demand analysis; S4, simulation is carried out, wherein the repair scheme is simulated on the digital twin model, and the mechanical property, material aging and traffic passing influence are simulated to generate a simulation result; And S5, scheme evaluation, namely evaluating the scheme by utilizing an evaluation model based on a simulation result, giving a scheme score, judging whether the expected effect is met, and if the expected effect is not met, adjusting the scheme and re-simulating the scheme until the standard is reached.
8. The digital twin simulation method for asphalt pavement repair according to claim 7, wherein S2 specifically comprises: s201, generating a basic three-dimensional pavement model by using a CAD modeling tool based on pavement geometry data; s202, integrating pavement disease type and severity data with a basic model to generate a digital twin model; S203, combining pavement material characteristics with environmental factors, creating a virtual model which accords with actual conditions, and simulating actual behaviors of a pavement; s204, correcting and updating the digital twin model in real time according to a real-time data updating mechanism.
9. The digital twin simulation method for asphalt pavement repair according to claim 8, wherein S3 specifically comprises: S301, automatically identifying the disease type of the asphalt pavement based on data in the digital twin model, classifying the disease, and marking the position and the influence range of the disease; s302, analyzing the severity of road surface diseases by combining traffic flow data and road surface service conditions, evaluating whether comprehensive repair, local repair and reinforcement treatment are required, determining the optimal repair requirement, and outputting a repair requirement score; s303, selecting a repair process according to the type and the severity of the pavement diseases, referring to a preset repair process library, formulating a construction scheme and planning a construction flow; And S304, optimizing repair process selection according to the repair demand analysis result.

Description

Digital twin simulation system and method for asphalt pavement repair Technical Field The invention relates to the technical field of pavement repair, in particular to a digital twin simulation system and method for asphalt pavement repair. Background Along with the acceleration of the urban process, the asphalt pavement is taken as one of main infrastructure of transportation, bears larger and larger traffic load, has various disease types, including cracks, pits, ruts and the like, and the occurrence of the disease is closely related to factors such as traffic flow, climate change, service life and the like, and the traditional pavement repairing method is often dependent on manual inspection and repair, has long period, low efficiency and high cost, is difficult to accurately predict the repairing effect, so that how to improve the efficiency, precision and intelligent level of asphalt pavement repairing becomes a problem to be solved in the current pavement engineering field. The digital twin technology is taken as an emerging virtual reality technology, is widely applied to various engineering fields, can monitor, analyze and optimize the behaviors of physical objects in real time by creating a virtual model corresponding to the actual physical objects, and can effectively realize real-time monitoring of road surface states and intelligent design and optimization of a repairing scheme by combining the digital twin technology for repairing asphalt road surfaces, thereby greatly improving the accuracy and efficiency of the repairing process. Disclosure of Invention In order to solve the technical problems, the digital twin simulation system and the method for repairing the asphalt pavement are provided. In order to achieve the above purpose, the invention adopts the following technical scheme: a digital twin simulation system for asphalt pavement repair, comprising: The data acquisition module is used for acquiring multi-source data and traffic data of the asphalt pavement; The digital twin modeling module is electrically connected with the data acquisition module, receives the acquired data, builds a digital twin model of the asphalt pavement by using a three-dimensional modeling technology, presents the actual state of the pavement in a digital form, and updates the model in real time according to the acquired data; The repair scheme design module is used for outputting an asphalt pavement repair scheme based on a digital twin model and combining the disease type, severity and traffic demand of the asphalt pavement and a trained repair scheme recommendation model; the simulation module is connected with the digital twin modeling module and the repair scheme design module, and is used for simulating the designed repair scheme on the digital twin model, simulating the mechanical property change of the pavement, the material aging process and the traffic passing influence in the repair process, and generating simulation result data; The scheme evaluation module is used for receiving the result data of the simulation module, evaluating the result data of the simulation module based on the trained evaluation model, giving out the evaluation score of the scheme, judging whether the scheme reaches the expected effect standard based on the evaluation score of the scheme, outputting the asphalt pavement repair scheme for construction staff to refer to and execute if the scheme reaches the expected effect standard, and adjusting the asphalt pavement repair scheme if the scheme does not reach the expected effect standard. Preferably, the digital twin modeling module specifically includes: The data receiving and preprocessing unit is used for receiving multi-source data of the asphalt pavement from the data acquisition module, including pavement geometry, cracks, pit diseases, humiture and traffic flow data, cleaning, checking and formatting the received data, and removing noise data; The three-dimensional modeling technology application unit is used for generating a pavement basic geometric model by utilizing a CAD modeling tool based on pavement geometric shape data, adding crack and pit defect data into the basic model, generating a digital twin model, and displaying the defect distribution and severity of the pavement; Combining material parameters of the asphalt pavement with environmental factors to form a virtual model consistent with the actual pavement behavior, and combining a three-dimensional modeling technology with a virtual reality technology; And updating real-time data, namely updating the digital twin model in real time according to the newly acquired data by connecting the digital twin model with the data acquisition module in real time, and dynamically correcting the road surface state in the model according to the external environment change and the road surface actual state change. Preferably, the repair scheme design module specifically includes: The disease identification and classification