毕业设计：陇东地区煤炭开采对地下水环境影响.docVIP

摘 要 我国北方的大部分地区地表水资源短缺，为了满足生产和生活用水，强行开采地下的水现象普遍存在，许多地区地下水被超量开采后无法恢复原有的平衡，而这种现象在煤炭开采地区更为突出。陇东地区是我国重要的煤炭资源与生产基地，又是水资源严重短缺的地区之一，因此加强煤矿开采对地下水环境影响的研究对陇东地区的生态环境保护与区域经济可持续发展显得尤为重要。本文以陇东地区的3个煤矿为主要研究，在大量收集煤田导水裂隙带和冒落带高度比 关键词： 煤炭开采； 地下水环境； 水文地质； 陇东地区 Abstract Large parts of the surface water resources shortage in north China, in order to satisfy the production and living water, to the exploitation of underground water phenomenon is widespread, and many areas be unable to restore the original after excessive exploitation of groundwater balance, and this phenomenon is more prominent in coal mining areas. Longdong region is important production base of coal resources and in our country, it is one of the serious shortage of water resources, thus strengthening the research on the impact of coal mining on the groundwater environment of Longdong region ecological environment protection and the sustainable development of regional economy is particularly important. This paper, taking the longdong region of the three coal as the main research object, in a large collection of coalfield geology exploration and mine geological information, on the basis of analyzing the hydrogeological conditions and occurrence characteristics of coal seam, the groundwater environment of hydrogeological environment, water quality, water quantity analysis of the influence of coal mining on the groundwater environment. Through to the mining of coal seam mining field guide water fracture zones and MaoLaDai comparative analysis, the height of coal seam mining in most regions of thought of research field of the impact is not big pore fissure unconfined aquifer of quaternary system, and the lower cretaceous sandstone and glutenite fissure confined aquifer is water flowing fractured zone, its rich good water, high water level will lead to mine water filling, so the effect of coal mining on the aquifer is the largest. Combined with coal seam mining, recharge and discharge conditions of groundwater runoff impact an