Research On Geological Modeling And Visualization Management Of Slope Based On BIM Technology

With the rapid development of the construction industry in China,the slope problems in various projects are becoming more challenging.The traditional methods are unable to meet the management needs of different complex slopes.To solve the problem,BIM technology with the characteristics of information integration and visualization can be used to improve the efficiency of slope management and reduce potential risks.However,the application of BIM technology in slope management still has problems such as a low degree of standardization,difficulty in refined modeling,and obstruction of data exchange.Given the problems,this thesis studied the BIM-based geological modeling and the visualization management method of highway slope through theoretical research and program development.The main research contents and achievements of this thesis are as follows:(1)Through the research on 3D geological modeling theory,the method of slope geological modeling based on borehole data is determined.To improve the accuracy and precision of geological modeling,the solutions such as improved stratigraphic sequence optimization,stratigraphic continuity discrimination,and spatial interpolation are proposed.On this basis,the scheme to establish a detailed slope geological model based on borehole data is proposed.(2)Revit is determined as the primary modeling platform after comparing mainstream BIM modeling software.Based on the modeling scheme proposed in this thesis,the Dynamo script used to convert borehole data into 3D models is written.Then,a parametric geological modeling method based on Revit and Dynamo is proposed,and the rationality of this modeling method is verified by an actual case of highway slope.(3)In this thesis,the re-rendering method of the web 3D model based on WebGL is studied.Based on OBJ and JSON,the lightweight storage format of the BIM model is proposed.Aiming at the target format,the extended development of BIM modeling software is implemented using C#and Revit API,and the lightweight export of the BIM model is realized.On this basis,the interactive application for lightweight models is developed using Three.js,which improves the application efficiency of the slope BIM models.(4)By analyzing the workflow of slope management,the requirements for developing a slope visualization management platform are determined.Based on the database,WebGIS,and other technologies,the results of the above research are integrated,and a slope visualization management platform based on BIM and WebGIS is developed.Furthermore,a visualization management method of slopes based on this platform is proposed,which provides a reference for realizing efficient,visual,and collaborative management of slopes.