Study On Evaluation Of Mine Geological Environment Based On Comprehensive Weights And Fuzzy Comprehensive Model

The survival of human beings and the development of society can't be separated from mineral resources.The development and utilization of mineral resources,improve the people's living standards,and promote the stable development of the national economy.However,with the large-scale exploitation of mineral resources,a series of mine geological environment problems have been triggered.It not only affects the operating environment and working conditions of the mine,destroys the landscape and vegetation,but also may cause mine geological disasters,threaten the safety of people's lives and property,and affect the mine and its surrounding residents living environment.The contradiction between the exploitation and utilization of mineral resources and the protection of geological environment always affects the sustainable development of society and economy.Therefore,it is necessary to carry out the evaluation of mine geological environment.Many scholars at home and abroad have done a lot of research in the field of mine geological environment evaluation.They have explored various evaluation systems,evaluation models and evaluation methods,and made a comprehensive evaluation of the mine geological environment.But the mine geological environment assessment is a complex and comprehensive work system,there are some limitations: the selection of evaluation indexes and weight factor determined by subjective factors in different extent,reduce the objectivity and credibility of evaluation results.Based on this,this paper takes the Shilu mining area of Changjiang in Hainan Province as the study area,and uses the high resolution data fusion of SPOT6 and SPOT7 as the data source in 2015,according to the current situation of geological environment and field survey data,from the natural geography,geology,mine development,five aspects of mine environment and mine geological disasters from the 11 evaluation index,established a multi-level evaluation index system.Then,by comparing and analyzing the advantages and disadvantages of the objective weighting method and the subjective weighting method,the comprehensive weight method is obtained.The weights of each element and each index factor are determined by the comprehensive weight method,and the mine geological environment in the study area is comprehensively evaluated based on the fuzzy comprehensive evaluation model.Finally,to verify the geological environment zoning map mining using grid method,in a scientific and objective way of comprehensive evaluation results were analyzed,the results are basically the same,also accord with the actual situation of field investigation,further validates the feasibility and reliability of this method.Based on the comprehensive evaluation of the mine geological environment in the study area,it is concluded that the mine geological environment in this area belongs to poor grade and the geological environment problem is serious,so it is necessary to strengthen the geological environment control of mine.Through the analysis of the evaluation results and the present situation of mine geological environment,the mining area development planning and environmental restoration and put forward the corresponding suggestion,also provide a reference for other mining mine geological environment evaluation.