综采工作面过断层施工工艺应用

Application of Construction Technology for Fully Mechanized Mining Face Passing Through Fault

综采工作面回采期间经常遇断层构造,煤层在断层两盘发生位置变化,不仅加大了工作面回采难度,增加了煤柱损失及破岩量,且断层带附近煤岩体稳定性差,在回采期间顶板及煤壁破碎严重。对此,山西焦煤汾西矿业集团南关煤业有限责任公司3205工作面过断层期间采取了下山过断层施工方法及合理的顶板控制措施,取得了显著成效。

During the period of mining, fully mechanized mining face often encounter fault structure, and the position of coal seam changes on both sides of faults, which not only increases the diffculty of mining, but also increases the loss of coal pillar and the amount of rock breakage. The stability of coal and rock mass near fault zone is poor, and the roof and coal wall are seriously broken during mining. In this regard, Shanxi Coking Coal Fenxi Mining Group Nanguan Coal Industry Co., Ltd. 3205 working face across the fault during the adoption of downhill across the fault construction method and reasonable roof control measures, and achieved remarkable results.