The Evaluation And Research Of Geologic Environment Carrying Capacity About Shaanxi Guojiahe Coal Mine

Guo Jiahe coal mine is located in the north of YongLong mining area and south of exploration area of Jurassic coalfield in Shanxi Province. The length is about 15 km from east to west and the width is about 8.5 km from south to north, it covers an area of about 94.7 km2, looks like irregular inverted trapezoidal. The mining area is located in the summer resort of Sui and Tang dynasties, the ecological environment is good and the coal resources is rich. Shaanxi province has lots of energy, the development of economy mainly relies on the coal mining and pretreating. But for a long time, due to the weakening of mine geological environment protection and research work in the process of development, In order to keep up with the needs of The Times.To develop the coal resources effectively and without damaging of ecological environment at the same time is the problem to be solved urgently. Therefore, to research the geologic environment carrying capacity about Guo Jiahe coal mine is very significant.This paper is on the basis of collecting geological data and field-investigation of Guo Jiahe coal mine, fully consideration the principle of selecting evaluation indexes and the influence factors to the geologic environment carrying capacity of coal mine.the comprehensive consideration of evaluation indexes selection principle and influence factors the mine geological environment bearing capacity.From four aspects,structural medium、hydrogeololgy、interface construction and structural configuration screened 8 evaluation indexs,rock cover thickness、Comprehensive hardness of rock cover、the ratio of Coating thickness and strata、the position of key stratum、fold aerocurve angle、the structure of joint fault rock masss、state of stress and the aquosity of rock cover. Applied the theory of topology matter-element matrix, solved the parameter correlation functions, adopted formula method to confirm the weight of this evaluation index, set up the evaluation index system of mine geological environment carrying capacity to resist disturbance, to evaluate geological environment ability to resist disturbance of Guo Jiahe coal mine.Made the collapse prediction of no.3 coal seam area about Guo Jiahe coal mine which has been mined most,with the prediction system of mining subsidence based on probability integral method,evaluated the ecological environment carrying capacity on the basis of the prediction.The evaluation results show that the geological environment antijamming capability of Guo Jiahe coal mine is strong, belonged to lst,the ecological environment antijamming capability,the comprehensive evaluation is that the geological environment carrying capacity is strong, belonged to 1st.Through the prediction got calculated settlement,and did further conjoint analysis about subsidence value and the evaluation model, those are the cross achievements of mining subsidence and geology,will be helpful to the future production of mining area, has innovation.The geological environment antijamming capability has an influence on the ecological environment of mine area, and has certain significance to the coordinated development of the resources development of Guo Jiahe coal mine and the protection of the mine geological environment.