Study On Groundwater Environmental Impact Assessment Of Coal Mining

Though scientists have begun to study groundwater environmental impact assessment on 1950s, such as the study on the single factor index method, comprehensive pollution indexes and the subsequent various synthetical evaluation methods,which are almost focused on the water quality evaluation.In the research on influence of groundwater environment of coal mining,though scholars have researched on the destruction of groundwater resources, fall of ground water level,the change of groundwater flow field and so on,which has not form a method that is generally accepted The technical guideline for environmental impact assessment of groundwater is issued,which has perfected the related contents.That the influence of groundwater environment of coal mining includes: mine water effects on groundwater quality and the Influence of coal mining on underground reservoir.But, because the mine water has been controlled continuously, which on the influence of groundwater quality could been weakened.That the Influence of coal mining on underground reservoir isbecoming more and more evident, we should paid great attention.Because the environment that Shanxi Gujiao char group Jin zhizhong coal mine is more sensitive,the paper take which for an example, studying on groundwater environmental impact assessment of coal mining. The result shows that:the procedures,contents and technical methods of groundwater EIA can be used on the underground project of exploiting.But because of the coal character,the the influence of groundwater environment is different from other construction projects, The practical application of guideline may need to be further improved.According to the technical difficulties in the applying, the paper discusses the problems on water sampling, status monitoring frequency requirements and hydrogeological data collection etc, and put forward some countermeasures...