Establishment and Optimization of Comprehensive Evaluation Indicator System for Geological Structure of Coal Mine

Taking Yanshitai colliery in Chongqing city as an example,which the strata are intensely folded and faulted,by way of systematic analysis of exploration and mining data,as well as intensive study of geologic structure laws and its formation mechanism.The objectives of this paper are to establish a wholly set of index system for comprehensive evaluation and forecast of geological structure,evaluate quantitatively structural complexity of unmined-out area,as well as to forecast quantitatively structural development degree of un non-mining areas.By which the high and stable coal output will be realized safely.Finally,these indicators have been optimized and selected by means of grey relation analysis and stepwise regression analysis program.These optimal index can directly serve in the mathematical evaluation model of geologic structure and its software system.