Research And Realization Based On Three Dimensional Visualization Model Of Coal Mine Geology

Along with the application of computer technology on mining industry,the situation of mining industry is developing from experience style,trandition style to science style,fixed quantity analysis and process andautomatization. When the mineal of three-dimensional space is depicted by two-dimensional figure,the visuability is poor and it lacks of third dimension.Simultaneously it is difficult for laypeople to display the design.This paper mainly does research on the three dimensional visualization model of coal Mine geology. Some important concepts of Digital Mine are introduced. On the base of these concepts, the feasibility of multi-models establishment about Digital Mine is discussed and the modeling method is presented correspondingly.In the establishment process of three dimensional visualization model, we proposed the contour line drill hole - multi-layer face mold method.This method which improves Delaunay triangulation, is suitable for the random polygon triangulation and is easy for computer to realize. It makes three dimensional stratum visualization model of picking area realized under the limited condition.In the establishment process of coal mine fault three-dimensional model, Considering the complicated fault question of actual mining environment, the two kinds of faults of annihilation and non-annihilation are discussed, and the algorithm of how to insert to the stratification plane model is presented. It simplifies the modelling work of fault. In the establishment process of coal mine tunnel three-dimensional model , the feasible algorithm of the coal mine tunnel visualization model Has been given. This model may cause the tunnel and the geological three-dimensional model to be united in the process of excavation, it takes on in the way of three dimensional visualization and it offers the policy support for production. presents by the three dimensional visualization way, In the three-dimensional model visualization aspect, the visualization system has been developed by taking advantage of OpenGL, the three-dimensional display of model is implemented. It can finish the operations of stratum splits cuts,interception and etc.