Evaluation Of The Mine Goe-environment In Datong District

A series of mining-induced environmental problems threaten the lives and property of people, and seriously affect and constrain the development of economy. That dividing mining geo-environment can provide scientific basis for the government carry the case of protecting and treating mining geo-environment, and rational exploit mining resources, so the research is of great actual meaning and theory value.On the basis of investigation on the Datong spot and research at the mine geological environment has got lots of first hand data for the paper such as mining geo-environment background, exploit method and mining develop current situation. By the fact that analysis to mining geo-environment background and mining geo-environment problem studies, finding out that the main mining geo-environment problem of Datong District is that coal mining land collapse. And its mainly influencing factor is the coal burying depth, coal thickness, coal mining method, and covering rock characteristic through analyzing forming mechanism of coal mining land collapse.Unifies the Datong mine development actual situation, from the regional geology environment background, the resources damage and the geological environment question present situation three aspects selects the appraisal factor, carries on the quantification, establishes the appraisal model, has carried on Essential factor target weighting minute value quality synthetic evaluation model to the Datong area mine geology environmental effect.The paper draws following conclusion are as follows:(1)Datong mineral resource by the coal resources primarily, the coal bed buries shallowly, may mine coal level thickness to be big, the mining condition will be superior, has decided this area mine development massively by the coal mine, the high strength development primarily characteristic.(2)The Datong mine development causes the geological environment question includes:â‘ The mine development takes and the destruction land resource table vegetation destruction is serious, aggravating soil erosion;â‘¡The destruction ground water resources, the aggravating water resources are contradictory;â‘¢Coal mine mining causes mine geology disasters and so on fall of ground,in which the fall of ground which causes by coal mine mining especially is serious;(3)Mine mining geology environment influence overall for medium. So long as takes the suitable project countermeasure measure, mine mining is feasible.(4)The selection appraisal system and the method are reliable effective, which conforms to the actual situation, and has carried on the mine geology environmental effect district narration to the Datong area.