示踪法研究赵家寨煤矿风井地带水文地质条件

Study on Hydrogeology Condition of Airshaft Zone in Zhaojiazhai Coal Mine by Tracing Method

运用示踪方法对赵家寨煤矿风井地带的水文地质条件进行了分析研究,通过对风井边布置的4个钻孔中的温度电导率、pH值溶解氧及渗透流速的测试,多方面数据验证得出,研究区域砾石层的渗透流速较大,比其它层位地层的流速高一个数量级。在风井的冻结施工中需对该地层加以重视。

The hydrogeology condition of airshaft zone in Zhaojiazhai Coal Mine was studied by the tracing method.Four boreholes were located beside the airshaft,and the temperature,electrical conductivity,pH values,dissolved oxygen and seepage velocity of the boreholes were tested.The data of all aspects showed that the seepage velocity of gravel layer in the study region was rather great,greater of one order of magnitude than other layers.The gravel layer should be paid attention during the freezing construction of the airshaft.