Analysis On Influencing Factors And Prevention Countermeasures Of Mine Geological Environment Problems In Shaanxi Province

In order to solve the problems of various types of mine geological environment in the development and utilization of mineral resources in Shaanxi and improve the living environment of mining area.Based on the collection,collation and analysis of mine geological environment data in Shaanxi Province,this paper comprehensively applies relevant knowledge systems of geotectonic mineralization,mineral resources exploration,mining,ore dressing and smelting,engineering geology,hydrogeology,land resources and other disciplines,and first summarizes the current situation of exploitation and utilization of mineral resources in Shaanxi Province and the main mine geological environment problems.Secondly,the differences caused by the various influencing factors on the geological environment of the mine are analyzed,and at the same time,the theoretical calculation is used to verify;Finally,corresponding prevention and control measures are proposed for different geological environment problems of mines.The research in this paper not only makes the problem have a glimpse of the essence,but also provides theoretical basis and practical application guidance for the protection of mine geological environment and land reclamation work in Shaanxi Province and even the whole country.The main points of understanding are as follows:1)Due to different geological conditions,the mineral resources in the Loess Plateau of northern Shaanxi are represented by petroleum and coal minerals;the Guanzhong Plain is dominated by geothermal mineral resources;the southern Shaanxi hilly areas are mostly metal mineral resources.2)The loess plateau region in northern Shaanxi(represented by coal mining),the most prominent geological environment problems are geological disasters of ground collapse,destruction of underground aquifer structure and land resources of meteorites;But about various metal mines in hilly areas of southern Shaanxi,the main geological environmental problems are characterized by geological disasters such as landslides,collapses and mudslides,mining ground engineering construction,excavation and pressure,land resources,andlarge-scale destruction of landforms.3)The influencing factors causing the geological environment differences in mines are closely related to different primary geological conditions(loess plateau area in northern Shaanxi,Guanzhong plain area,qinba mountain area in southern Shaanxi)?different mineral types(metal ore,nonmetal ore,energy ore)? a mining methods of different mineral types(underground mining,open pit mining),development systems,required mine engineering and local environmental awareness.4)The key points of prevention and control measures for different geological environment problems of mines should be different.The technical means for implementing geological disaster prevention,geomorphological landscape restoration,mine geological environment monitoring,and land reclamation in mining areas are also different.For coal mining areas with less ups and downs in northern Shaanxi,the prevention and control of ground subsidence should be strengthened,and the mining subsidence and soil environment should be monitored.The metal mines in the Qinba mountainous area in southern Shaanxi should focus on preventing landslides,collapses and mudslides.Key monitoring of unstable slopes,ground engineering deformation,groundwater environment and soil environment;when the land reclamation direction of the mining area is determined,the evaluation index systems of southern Shaanxi and northern Shaanxi should be focused differently.