宁夏冯记沟煤矿水文地质特征及矿井水利用分析

冯记沟煤矿地处西部干旱区，地表水及地下水极为贫乏。矿井井下的主要含水区段为侏罗系直罗砂岩含水层（Ⅱ）、一煤-六煤砂岩含水层（Ⅲ）和采空区积水。现生产二号井煤矿开采过程中，由于三煤层顶板的垮落，裂隙增加，Ⅲ含水层与Ⅱ含水层连为一体。目前二号井的正常涌水量为115m^3／h，最大涌水量280m^3／h。根据勘探资料及水质分析结果，对矿区地下水进行了评价，认为矿井地下水不宜作生活饮用水，处理后可做为锅炉用水、冷却用水、绿化灌溉用水及混凝土建筑用水。

Hydrogeological Characteristics and Mine Water Analysis in Fengjigou Coalmine,Ningxia

The Fengjigou coalmine is situated at western China arid area, and seriously short of surface water and groundwater. Main water-bearing sections have Jurassic Zhiluo sandstone aquifer （ Ⅱ ）, Nos.1-6 coal seams sandstone aquifer （Ⅲ） and gob water. During the mining of active No.2 mine, because of No.3 coal seam roof caving, fractures have connected the Ⅲ and Ⅱ aquifers. The common inflow of No.2 coalmine is 115m^3/h, maximum 280m^3/h. Based on exploration data and water quality analysis, evaluated groundwater in the coalmine area, considered that the mine water can not suitable to be drinking water, can only be boiler, cooling, greening and concrete mixing water after processing.