Characteristic analysis and prevention measures of water environment disasters in large area mining stratum

The large area mining stratum will induce water environment disasters,and the corresponding associated with water system adjustment and water pollution pre and post mining.Based on investigation and analysis to environmental geology,taking Xinqiu mine area of Fuxin city as the object of study,the paper introduced formation and features of water environment disasters,such as water resource running off,water accumulated in the goaf and open pit coal mine,surface water and underground water pollution,and so on.The result shows : water resource outflow is serious because of the large area mining stratum,and groundwater level recovered gradually;water accumulated in the goaf and open pit coal mine bring groundwater pollution by the water rock interactions such as migration & accumulation,adsorption & transformation,dissolution & desorption and ion exchange;water quality of drainage and rivers in the mining area has exceeded the allowable standards.Some means that mining geological environment control,construction of water supply and drainage facilities,water environment monitoring were put forward to prevent the water environment disasters.