Research On Mining Subsidence Damage Analysis System Based On GIS

Coal has always been the most important energy source in ourcountry.Coal mining has two sides.On the one hand,it can make the great growth of the national economy,on the other had,mining will cause subsidence and serious damage to the local ecological environment.It's necessary to manage the subsidence data effectively and analyse the mining damage.GIS is a cross-disciplinary based on computers.GIS can not only facilitate the management of spatial information,but also make spatial analysis efficient.As a result,using GIS toanalyse mining subsidence damage is feasible.GIS assembly technology is used to develop the mining subsidence damage analysis system with Arcgis Engine as the secondary platform,based on Visual Studio2008 development tools.The object-oriented C#language was used to realize the programming and visualization of mining damage analysis.The paper mainly achieve the following work:using probability integration method combined with mining and other related theory to achieve the mining subsidence data management and the visual output of subsidence prediction results.Calculating subsidence DTM and various contours according to the expected deformation information.What's more,The method of calculating the amount of earthwork in the working face and the method of calculating the amount of road repairs in the subsidence area are carried out.The spatial analysis function of GIS is used to query the features in the subsidence range of each time.Achieving super-deformation query,statistical query and other functions,which combines the specific attributes of the objects(anti-Value)and the expected subsidence curvature deformation DTM.Then the analysis and assessment of hose-damage can be made,which is caussed by mining subsidence.The system provides users a good interactive platform,which can analyse the mining subsidence damage visually,guding the mine production and mining subsidence prevention work.