采煤工作面构造与富水异常探查分析

Exploration of Coal Mining Face Structure and Water Rich Anomalies

地质构造及富水区是影响采煤工作面安全回采的主要因素,若采面无计划揭露地质构造及富水区,不仅会影响煤矿的掘进效率,还会引发安全事故。以山西A矿8#煤层80201首采工作面为研究对象,使用综合物探和钻探技术对采面构造与富水区进行探测,以及使用槽波地震探测和无线电波坑道透视技术对异常构造区进行探测,并结合探测结果运用音频电透视法确定了富水区的范围,最后对探测到的钻孔出水区进行疏排、注浆封堵。回采揭露显示采面回采至物探异常区时均揭露有断层等地质构造,回采至富水区时顶板有少量淋水情况,表明了现场使用的探测技术效果良好。

Geological structure and water rich areas are the main factors affecting the safe mining of coal mining faces.If the geological structure and water rich areas are not exposed in a planned manner,it will not only affect the excavation efficiency of coal mines,but also cause safety accidents.Taking 80201 first mining face of the 8#coal seam in Shanxi A Mine as the research object,comprehensive geophysical exploration and drilling techniques were used to detect the mining face structure and rich water area,as well as the use of slot wave seismic detection and radio wave tunnel perspective technology to detect abnormal structural areas.Based on the detection results,the range of the rich water area was determined using audio electric perspective method.Finally,the water outlet area of the detected borehole was drained and grouted for sealing.The mining exposure showed that there were geological structures such as faults in the mining face until it reached the geophysical anomaly area,and there was a small amount of water seepage on the roof when it reached the rich water area,indicating that the detection technology used on site had a good effect.