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内蒙古平庄煤业(集团)有限责任公司某矿I03(2)工作面开采3煤层,煤层属侏罗系上统阜新组元宝山段,煤层埋深约150 m,煤系均被新生界松散层覆盖,盖层厚度约72 m,煤层顶板存在3个含水层,富水性较强且不均匀。工作面推进至距离开切眼51 m和166 m时曾出现2次较大突水并停采,最大突水量分别为400 m3/h和760 m3/h,水量大且稳定,后通过地面瞬变电磁法与井下音频电透视技术探查了工作面顶板上方富水异常区的分布范围及相对强弱,为工作面的防治水工作提供了重要的参考资料。
Inner Mongolia Pingzhuang Coal Mining (Group) Co., Ltd. a mine I03 (2) face mining 3 seam, the coal seam belongs to the upper member of Fuji Formation of the Jurassic Yuanbaoshan section, the coal seam depth of about 150 m, coal are loose Layer cover, cover thickness of about 72 m, the coal seam roof there are three aquifers, water-rich and uneven. When the working face was advanced to 51 m and 166 m from the open cut, two large water inrush occurred and stopped. The maximum water inrush volume was 400 m3 / h and 760 m3 / h respectively. The water volume was large and stable. After passing through the ground instant Variable electromagnetic method and downhole audio electroscopy technology explored the distribution area and the relative strength of the water-rich anomalous area above the roof of the work face, and provided an important reference for prevention and control of water work in the work face.