| Shangluo is located at the foot of Qinling Mountain in the southeast of Shaanxi Province.Rich in mineral resources,mining has a long history.With the continuous development of social economy,a large number of geological environmental problems caused by unreasonable mining began to appear.In particular,the historical problems caused by a large number of unlicensed and ownerless mining have seriously affected the lives of local people,hindered the local development,and violated the concept of national ecological civilization construction.Therefore,it is very necessary to carry out comprehensive investigation and mine geological environment evaluation of historical mines in Shangluo City,so as to provide basis for the restoration of historical mines.Based on the previous research results,this paper summarizes the main problems existing in the geological environment of historical mines in Shangluo city through the investigation of the geological environment of historical mines in Shangluo City,and evaluates the geological environment of historical mines in Shangluo city.The main research contents are as followsBased on the analysis of the main geological environment problems of the historical mines in this area,6 evaluation indexes are selected to evaluate the geological environment of the historical mines by using the standardized results;10 indexes are selected to evaluate the mountainous environment of the historical open-pit mines in the study area by using the comprehensive index method and fuzzy comprehensive evaluation method.The evaluation results are compared with the field survey results,and the evaluation results of fuzzy comprehensive evaluation method are selected.Finally,the comprehensive evaluation results of geological environment of historical mines in Shangluo city are divided into three levels:serious,serious and slight.There are 9 serious geological environment problems,39 serious geological environment problems and 3 slight geological environment problems in Shangluo historical mines.More than 99.1% of the historical mines in Shangluo have serious geological environment problems.Therefore,the overall geological environment problems of Shangluo historical mines are serious.In order to improve the accuracy of the assessment,each mining face is divided into four areas,i.e.the mining area,the mining area and the mining area.On this basis,it is of great practical significance for the better and faster development of Shangluo city to carry out the mine geological environment zoning evaluation to provide more accurate basic data for the mine ecological protection and utilization.According to the statistical analysis of mine geological environment zoning evaluation results,open pit mining is a common and serious problem in historical mines.The number of mines,solid wastes and industrial sites is small,and the mine geological environment problems are relatively small.According to the results of the comprehensive evaluation of the geological environment of the historical mines in Shangluo City and the regional evaluation of the geological environment of an open-pit historical mine,combined with the technical requirements of the management and restoration of the mine geological environment in Shaanxi Province,the control measures are put forward from four aspects of the destruction of the terrain and landscape,the occupation of land resources,geological disasters and ecological restoration. |
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