直流电法仪在矿井含水层探测中的应用

Application of DC Electrical Prospecting Instrument in Aquifer Exploration of Mines

矿井含水层探测常规的方法是钻探和巷探,费时费力成本又高。采用直流电法仪可方便、快捷、准确的探测到含水层的位置。该文对DZ-ⅡA直流电法仪的组成、工作原理进行了介绍,并对其在预测矿井水文地质灾害危险技术方面进行了可行性分析,进而以实例——对河南煤化集团焦煤公司的1608工作面向前推进60 m,工作面下顺槽向上15 m^50 m段用直流电法仪进行实测,并通过钻探进行结果对比。结果显示,工作面下顺槽向工作面方向25 m处有积水,工作面下顺槽向工作面内方向35 m处有积水,直流电法仪探测与钻探结果相吻合。直流电法在勘探水文地质构造和矿井防治水害方面,成本低、效率高,有着良好的应用前景。

The routine detecting method for the aquifer of mines is drilling, the costs of which are expensive, while the DC Elec- trical Prospecting Instrument is convenient and accurate to detect the aquifer of mines. Here, the DZ-Ⅱ A DC Electrical Prospecting Instrument is introduced and analyzed including its conformation, working principles and application in prediction for the hydrogeological hazards of mines. And then, this instrument is used for detecting practically in Coking Coal Co., Ltd. of He＇nan Coal and Chemical Industry Group Company. Through comparison, it is showed that the measured results by using the DC instrument are in accordance with the results from the routine drilling method, so the DC method has a good practical value in the hydrogeological exploration and water disaster control of mines.