Study On Forecasting And Visualizing Deformation Of The Earth's Surface In Mine

This paper attempts to apply Geographic Information System (GIS) with powerful spatial analysis function to mining subsidence problem for the process of mining subsidence has space-time property. The author deeply researches and discusses the developing mode of GIS applied system, design of mine surface deformation forecasting and visualization system (MSDFVS), visualization of data about mining subsidence and classification of damage caused by mining subsidence, and at last develops MSDFVS based on Maplnfo6.0. In the procedure of researching and developing project, brings forward the method of fast establishing new project based on template file; develops the module used for forecasting movement and deformation of multiple random-shape faces according to probability integral principle; according to the traits of forecasted data, puts forward a new algorithm of drawing isoclines in Maplnfo environment; designs the new algorithm of drawing section plane and the new calculation of area and volume of subsided section based on isoclines; at the same time, gives the rale of classifying mine surface damage under GIS environment on the basis of GIS uncertainty theory. We apply MSDFVS to several mining faces of Zaohuang Mining Area in Shandong province to process and analyze data about mining subsidence, which has a good effect.