Study On 3d Visual Simulation For The Deformation Monitoring Of Foundation Pit

In this paper,the 3D visual simulation for the deformation monitoring of foundation pit with visual simulation technology is studied.These methods of modeling and visualization of 3D visual simulation for the deformation monitoring of foundation pit are putted forward.The 3D visual simulation for the deformation monitoring of foundation pit based on the GIS platform is raised.The deformation monitoring data of a practical engineering---a foundation pit in Tianjin is simulated and analyzed.The main contents and achievements of the thesis are summarized as follows:1.Due to the theory and methods for the deformation monitoring visualized simulation existing the following disadvantages:the data analysis methods are simple,data utilization frequency is low,not intuitive and so on,the 3D visual simulation theory and methods for the deformation monitoring of foundation pit,which are based on GIS,are putted forward.Visual performance,visual analysis and interactive control for monitoring achievement can be achieved in the way.2.In this paper,the ArcView secondary development technology and visual simulation theory and methods of the object-oriented are studied.The 3D modeling and simulation methods based on GIS deformation monitoring system are proposed.The database module,3D modeling module and spatial analysis module are developed with Avenue.3.In this paper,the scattered data interpolation theory and methods are studied,the generated digital terrain model are tested and analyzed in the way of IDW and Spline interpolation by combining with the practical engineering.The TIN model based on Spline interpolation method is putted forward,and the layout requirements of foundation settlement monitoring points are given out.4.A kind of method combined the GIS visual analysis and the finite element software analysis is used to research 3D visual simulation for deformation monitoring of foundation pit after studied the theories and methods of GIS spatial analysis.At last,the analysis module and warning module are developed with Visual Basic.5.Conducting the finite element calculation by combining with practical engineering projects,regarding the project actual measured data and finite element calculation results as data source,using the technology of object-oriented modeling,visual simulation and database technology,this paper develops the 3D visualization simulation system software of deformation monitoring of foundation that based on GIS.A common user-friendly Windows interface is adopted in the development process of system software in order to concede the user's demands.Modeling and analyzing the deformation monitoring of a foundation pit in Tianjin with the 3D visualization simulation system software,It is proved that the research work in this paper is feasible and effective.