Research Of Repair Planning In Mining Subsidence Area Base On GIS

In the process of underground coal resources mining,the Overlying Strata of Mining Coal will produce movement,deformation and destroy.When the mining area have arrived a certain range, movement and deformation will effect the surface,make surface producing large area subsidence, formed water-logged zone in the subsidence area of shallower groundwater. The area destroy by mining coal is great and the regularity is complex.The river,road(highway and railway),pipeline network and hydraulic building in the influence area have all destroyed, so research of the rule of surface subsidence and design scheme of expropriation and migration is very urgently and necessary.Use GIS integration development method and Visual C++platform,SQL Server 2000 database,ArcObjects component library and compiled mining subsidence area repair planning information system. Establish spatial database and attribute database. Realize mutual search between spatial database and attribute database. Cerate mining subsidence digital DEM and realize visualization,cerate subsidence contour line,superposition function of DEM with vector map,spatial analysis function and so on.Compile the function modal of Hopfield neural network project optimization, research use the AHP method to determin the weight of index,realize project optimization of river,road(highway and railway).Take the Anhui Hengyuan repair planning in mining subsidence area as example, use probability integral method and predict the dynamic change trend of ming surface subsidence area,river,road(highway and railway) in mine planning peried(2009-2014), design the total planning scheme of river,road(highway and railway) and land reclamation.According to the results of project optimization, design the total planning scheme. The result of task research will very important in guiding the subsidence area repair and treatment. The valuable study of this paper can give a guiding significance to other coal mines which were similar with this geological and mining conditions.