陇东黄土塬地区某煤矿排矸场包气带防污性能研究

Study on antifouling performance of vadose zone in drainage field of a coal mine in loess plateau of east gansu province

包气带岩土层具有保护地下水的功能,包气带的研究对于地下水污染治理与防治十分重要,本文依托陇东某煤矿工作区地下水环境现状调查与监测项目,通过资料收集、水文地质调查、水文地质钻探、渗水试验及水土岩样测试等工程技术方法,获取包气带和含水层的各种参数,通过对试验结果分析,计算出渗透系数,确定包气带防污性能,并提出矸石堆底部铺设隔水层、埋设渗水盲管以及指定垃圾处理场排放等针对性的地下水资源防治和保护措施,为陇东黄土地区进一步合理开发利用地下水资源提供科学依据。

The soil and rock layers in the vadose zone have the function of protecting groundwater,The study of Vadose Zone is very important for the treatment and prevention of groundwater pollution. In this paper,based on a project of Investigation and monitoring of groundwater environment in a coal mine working area in Longdong,by means of data collection,hydrogeological survey,hydrogeological drilling,seepage test and water,soil and rock sample test,various parameters of aeration zone and Aquifer are obtained The anti-pollution performance of aeration zone is determined,and the measures for prevention,treatment and protection of groundwater resources,such as laying water-resisting layer at the bottom of gangue pile,burying water-seepage blind pipe,and designating waste disposal site,are put forward It provides scientific basis for further rational development and utilization of groundwater resources in Loess area of East Gansu Province.