Programming And Realization On Prediction Of Coal-mining-induced Subsidence

The coal mining causes hazards of geological environment such as land surface sinking, fault and fracture of the ground. These coal-mining-induced subsidence has become one of important factors that are affecting coal mine safety, land surface ecological environment and sustainable socio-economic development in coal mining areas. The precise prediction of coal-mining-induced subsidence is significance in coal mining. The main research contents and conclusions are as follows:The spatial prediction analysis system of the subsidence is required by safety coal mining. Therefore, it is important to design system for predicting coal-mining-induced subsidence, which is integrated by the theory of coal-mining-induced subsidence and geographic information system. Based on analysis of existing systems, this paper designed the prediction system of the subsidence using three mining subsidence theories and Lrgis software. The system has extensive adaptability and can be used in different geological environment.The system was used in a mine area and predicted mining subsidence as well as building movement and distortion on land surface. The results provide a theoretical basis for coal mining in the study area.The system and its application show that it can supply technical support for the prediction and control coal-mining-induced subsidence in mines with different geological environments.