Study On Ecological Restoration Technology Of Waste Silica Mining Area In Yinchuan City

Since the late seventies,China has made remarkable achievements in the international economy with its rapid development speed,but the ecological environment has become a short-term development.As an indispensable energy support in the process of industrialization in China,mineral resources have made great contributions to economic and social development,but the negative effects of long-term mining activities on the ecological environment of mines have gradually emerged: land resources are overmolded and topography is Destruction,excavation of mine vegetation,loss of balance of water cycle,and serious problems of geological disasters.Building an ecological civilization is the key to the development of the Chinese nation.In the next five years,the demand for mineral resources,especially for construction sand and building materials,is still at a high level,and mineral resources development faces greater environmental constraints and higher public demands.To adhere to the development concept of “green water and green hills is Jinshan Yinshan”,it is necessary to put mine ecological restoration at the core of mineral resources development and utilization.This paper takes the environmental restoration and restoration project of the main Foshan and Dakouzigou original silica mines in Yinchuan as an example to study how ecological restoration should be carried out in abandoned mines in Yinchuan.The restoration and treatment project uses methods such as collecting data,mine geological environment survey,data collation and analysis,etc.,by studying the geological environment background and the geological environment status,judging various problems caused by the untreated mine geological environment,and targeting different geology of the mine.Characteristics propose corresponding engineering governance measures.The treatment project is divided into five parts: ecological greening,road construction,retaining wall masonry,intercepting drainage and maintenance engineering.The governance objectives are clear and the methods and measures are appropriate.Through research,the following conclusions are drawn:1.Ecological restoration is based on the "Regulations of the Nature Reserve of the People’s Republic of China",which cultivates the ecological system of abandoned mining areas and protects the living environment for the protection of animals and plants in the nature reserve;2.Reconstruction of surface vegetation in abandoned silica mining area.Spraying and broadcasting organic fiber layer,guest soil spray,guest soil hanging net spray,guest soil spray combined with environmentally friendly coconut fiber vegetation blanket,small degradation bag flexible slope protection and point planting shrub and other engineering measures Carry out greening;3.Take measures to intercept the drainage to prevent the surface from scouring,and adopt the combination of engineering and ecological measures to design the slope protection and retaining walls on the steep slope to protect the stability of the mountain.