斜沟矿井下断层防水煤柱设置宽度的优化研究

Study on optimizing the setting width of waterproof coal pillar for faults under inclined ditch mine

针对井下综采作业过程中综采面与井下断层过渡处频繁出现导水的现象,提出了一种新的井下断层防水煤柱的宽度设置方案,充分考虑井下断层破碎带宽度和断层屈服影响带宽度对防水煤柱设置宽度的影响,将斜沟矿井下防水煤柱的距离提升到了238.85m,目前该方案已在晋兴能源有限责任公司所属煤矿得到了广泛的应用,取得了极好的应用效果。

In view of the frequent occurrence of water diversion at the transition point between fully mechanized mining face and underground fault in underground fully mechanized mining operation,a new width setting scheme of underground fault waterproof coal pillar is proposed,which fully considers the influence of the width of underground fault breakage band and the width of fault yield influence band on the width of waterproof coal pillar,and raises the distance of waterproof coal pillar under inclined ditch mine to 238.85 m. The former scheme has been widely used in the coal mines of Jinxing Energy Co.,Ltd. and achieved excellent application results.