Study on groundwater environmental impact in Jiaozuo Coalfield
Groundwater environmental problems will lead to the reduction of available groundwater resources and the deterioration of groundwater environment,which will have a serious impact on human life and environment.By means of data collection,hydrogeological survey,evaluation and analysis,the change characteristics of groundwater hydrogeological conditions in the study area and the hydrogeo-logical characteristics of the mining area were identified,and various factors affecting the groundwater environment were analyzed.The research show that the decrease of groundwater level caused by coal mining has caused the change of groundwater runoff field in some areas.The drop in water level leads to the disappearance of the form of groundwater discharged by canals and springs.At present,the groundwater level dropping funnel is still expanding,and the Huanfeng funnel and Wenmeng funnel are connected to each other and be-come a large compound funnel.Coal mining causes groundwater pollution to expand to"depth".Mine drainage caused by the expansion of the drainage area will further aggravate the problem of induced ground subsidence(collapse).The research results provide scientific basis for ensuring the sustainable use of water resources and promoting the coordinated development of economy,society and environ-ment.
groundwater environmentcoal miningprevention and control measuresJiaozuo City