Abstract
The effect of an operational strip mine on regional ground-water flow is investigated using a finite element model of the steady flow system. Mine location, mine size, water-table configuration, and subsurface layering of aquifer units are examined. The results demonstrate that: (1)The impact of a mine can extend far beyond its radius of influence at the water table; (2)mines placed near regional discharge areas have a more significant effect on the regional system; (3)natural water-table variation due to topography masks the effects of some mines; and (4)buried aquifers beneath the mine excavation limit the amount of flow field distortion caused by the mine.
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