含瓦斯煤层底板轨道巷地质构造异常区支护设计

Support Design of Abnormal Geological Structure Zone in Seam Roadway of Gas Bearing Seam Floor

以淮南矿区顾桥煤矿煤层底板轨道巷地质构造异常区为例进行支护设计研究,采用带帽点柱+锚杆为临时支护,U型棚+锚网索喷支护作为永久支护,巷道支护整体性较好,能够削弱爆破振动的影响,较好地解决了软岩巷道掘进岩层富水性差漏水和因煤层起伏和构造应力造成构造异常区会瓦斯含量与瓦斯压力增加等问题,为工程的施工和设计提供了一定的指导意义。

Based on the geological structure of coal seam floor roadway in huainan mining area anomaly zone for study on the support design,with a hat for temporary support column+bolt,U type shed+anchor boltmesh supporting as a permanent support roadway,better integrity,can weaken the influence of blasting vibration,a better solution the soft rock roadway rock rich in water and coal seam because of poor Water Leakage fluctuation and tectonic stress caused by problems of gas content and gas pressure increase anomaly area,provides some guidance for the design and construction of the project.