屯兰矿18403采面过空巷技术应用探索

Application Exploration of Crossing Abandoned Roadway at 18403 Working Face of Tunlan Colliery

针对屯兰矿18403工作面过空巷技术进行了应用探索,得出18403空巷及抹角区采用加粗锚索+锚杆+单体工字钢棚+锚索锁梁联合支护;并采用深孔爆破技术对18403空巷顶板进行切顶卸压,改善工作面回采时的空巷应力环境。最后通过现场观测数据,得到此技术方案下可以保证巷道的正常使用,且取得了很好的经济效益。研究成果在相同煤层、类似巷道进行推广应用,具有广阔的应用前景。

The combined support with reinforced anchor cable,anchor bolt,single I-shaped steel shed and anchor cable locking beam is applied to crossing abandoned roadway at 18403 working face of Tunlan Colliery,together with deep-hole blasting technology in pressure relief by cutting roof to improve the stress environment of the abandoned roadway in mining,which can guarantee the normal operation of roadway with good economic benefits and broad application prospect.