【摘要】 新集一矿150801工作面位于阜凤下夹片断层下,8煤顶板距离上覆下夹片断层46～88m,在局部地段,采动后的导水裂隙带有可能波及下夹片断层带,导致夹片断层带水及夹片灰岩水涌入矿坑,严重危及150801工作面的安全回采。通过对夹片灰岩的分布规律、赋水性、8煤顶板岩性特征的分析以及涌水量和最大导水裂隙带高度的计算,综合评价150801工作面防水岩柱留设的可靠性。更多还原

【Abstract】 Work face 150801 is under the Fu-Feng Clapping-piece Fault, which is 46 ~ 88m to the roof of coal seam 8. Due to mining impact, water-conducting zone reaches it . So water of fault zone and karst water of clapping piece infiltrates into mining area and threatens safety mining of Work face 150801. The paper analyzes the distribution and lithology of the clapping piece, calculates the maximum height of the fracture zone and appraises the reliability of waterproof pillar in Work face 150801.更多还原