神府东胜矿区采煤塌陷对水环境影响效应研究

The Effect of Coal-mining Subsidence on Water Environment in the Shenfu-Dongsheng Mining Area

煤矿开采所造成的地面塌陷,已成为我国西部矿区危害范围最广,危害程度最大,延续时间最长的一种环境地质灾害,其对水环境的影响也最为严重,不仅导致区域水文地质条件遭到破坏,造成水循环模式发生改变,而且引起水资源量急剧减少,水体污染严重,水环境极度恶化。本文以西部煤炭能源基地神府东胜矿区为研究区,从地表水、包气带水、地下水及水体污染四方面,进行采煤塌陷对水环境的影响效应研究,为矿区水资源供需矛盾、水环境改善以及区域经济可持续发展等提供科学依据。

Land subsidence caused by coal mining is a most harmful, most widespread and most prolonged geological hazard in mining areas of western China. It also seriously affects water environment in that it not only destroys hydrogeological conditions and changes water cycle patterns but also sharply reduces water resources and causes water contamination and water environment deterioration. With the Shenfu-Dongsheng mining area as a study area, this paper discusses the effect of coal-mining subsidence on water environment in four aspects, namely, surface water, unsaturated water, groundwater and water contamination. The results obtained provide a scientific basis for the study of contradiction between water supply and water demand, water environment improvement and sustainable development of regional economy.