综合物探方法在煤矿老空水及其涌出通道探测中的应用研究

Research and Application of Comprehensive Geophysical Methods in the Detection of Coal Mine Old Goaf Water and Its Gushing Channels

采空区地质条件复杂、干扰源众多,单一物探方法难以实现对采空区及其涌水通道的精确定位。为此,针对贵州省麻江县摆沙河煤矿老空水,采用高密度电阻率法和充电法联合进行探测研究。利用高密度电阻率法圈定采空区范围,再结合充电法划定污水涌出点位的给水通道,基本查明在探测区隐伏有采空区,且大量老空水由渗水通道涌出造成地面污染。两种方法的联合使用为我国煤矿防水工作提供更为有力的技术支撑。

The geological conditions of the goaf are complex and there are numerous interference sources,making it difficult to accurately locate the goaf and its water gushing channels using a single geophysical method.Therefore,for the old goaf water in the Baishahe Coal Mine in Majiang County,Guizhou Province,a joint exploration study is conducted using high-density resistivity method and charging method.The high-density resistivity method is used to delineate the range of the goaf,and the charging method is combined to delineate water supply channels for the sewage discharge point.It is basically found that there is a hidden goaf in the detection area,and a large amount of old goaf water gushed out from water seepage channels,causing ground pollution.The combined use of the two methods provides more powerful technical support for the waterproofing work of coal mines in China.