| Abandon coalmine is a producing acid dump in earth's subsurface.Mineral activity discloses some separated aquifer,and provides the hydraulic contact condition.The related aquifers will be polluted along with the mine closed.It analyses the destory action to confining bed by mineral activity and analyses the water's action on crack expansion after mine closed.It carries out an experiment using the pure karst water mixed with mine water,to analyse the character of karst water subjected different degree pollutions.Based on the fact that the karst water in HongShan_ZaiLi mine was polluted,and based the hydrogeologica condictions when mine closed,it creats the simulation model about flow and water quality.It researches the cross strata brought by exploitation, forecasts the the potential pollution range within 20 years,pollutant concentration and SO42-Solute migration path.It obtains a result that The maximum potential pollution range is as forty times as the initial pollutional area.It simulates the pollutional process and pollution range made by one dislocation.It studyies the cross strata pollution made by various man-made wells,simultaneously,it search two polluted well with silo TV,it approves the existence and creation of the pollution.
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