Study on direct current method detection and borehole drainage of hidden old mining-out area water in roof
Sun Peng1, Jin Yufeng1, Sun Changsheng1, Liu Yongjun1, Li Baoping1, Lan Hao2
1. Jingyuan Coal Industry Yili Resources Development Co., Ltd., Yili 835700, China; 2. Energy and Mining Engineering College of Xi 'an University of Science and Technology, Xi 'an 710054, China
Roof water disaster seriously restricts the safe and green mining of coal mine. In this study, based on the direct current method, the three-dimensional exploration of the roof 0 ~ 80 m layer of No.11050 Face in Tiemai Coal Mine was carried out. According to the resistivity anomaly, the roof water was divided into four levels of high, medium, low and no. The results of geophysical prospecting showed that the water abundance abnormal areas of 16 m, 30 m and 50 m on the roof accounted for 49.74 %, 61.86 % and 41.25 % respectively. It was speculated that the 30 m range was the main water abundance area and there was old mining-out area water. According to the statistics of borehole drainage volume, the drainage volume of 16-30 m, 30-50 m and 50-80 m layers was 1 308 m3, 14 154 m3 and 2 563 m3, respectively. Further combined with geological data and geophysical exploration results, it was determined that 0-30 m and 50-80 m were mainly fissure water, and 30-50 m was mainly old mining-out area water, of which old mining-out area water accounted for 78.52 % and fissure water accounted for 21.48 %. The research results provided a reference for mine water prevention and control and the application of direct current method.
孙 鹏1，金玉锋1，孙长升1，刘永军1，李保平1，兰 浩2. 顶板隐伏老窑水直流电法探测与钻孔疏放水研究[J]. 煤炭与化工, 2025, 48(11): 1-7.
Sun Peng1, Jin Yufeng1, Sun Changsheng1, Liu Yongjun1, Li Baoping1, Lan Hao2. Study on direct current method detection and borehole drainage of hidden old mining-out area water in roof. CCI, 2025, 48(11): 1-7.
