Three-dimensional Geological Modeling Of Mining Subsidence Prediction And Numerical Analysis

In this paper, the three-dimensional geological modeling of mining subsidence prediction and numerical analysis were studied. Firstly, through analyzing the current3D spatial data models and demand characteristics of mining subsidence data model, the GTP model was chose as the base spatial data model. Based on spatial data model and predicted method, the3D geological modeling method and deformation contour generation method of mining subsidence was proposed, so that to achieve the integration of2D and3D expression of mining subsidence prediction. Secondly, according to the geological data types in mining area, an integrated system based on Geodatabase、 ArcGIS、3DGeoModeller was proposed for3D geological modeling for mining area. It aims at building the structural model of original stratigraphic and property model of coal seam. The coupling method of3D geological model and numerical model was studied. Using the mesh and transformation of model with ANSYS, the numerical model was constructed based on3D geological model. Third, the above study content was applied in Wuyang mine and Xieqiao mine.