废弃矿山地下水串层污染的数值模拟研究

imed at abandoned mines’ groundwater cross strata pollution problem of Hongshan and Zhaili Coalmines in Zibo city of Shandong province, the simulation model of three dimensional flow and water quality was developed, and taking SO42- as water quality simulation factor, contaminated area, pollution concentration change law and solute migration way of groundwater cross strata pollution in some dislocation were simulated. The results show that solute in groundwater originates from pollution area, spreads to the hydraulic skylight area, and removes to region of outflow along direction of flow, ionic concentration is increasing with time; The maximum potential pollution range is as about forty times as the initial pollution area. Via the study and analysis, we can conclude that it’s very serious for groundwater cross strata pollution. Therefore, it is necessary to take measures to harness abandoned mines，in order to effectively mitigate or control the groundwater cross strata pollution.