摘要
燕家河煤矿地质条件复杂,该矿总回风巷松软、破碎、复杂围岩条件下巷道底臌难以治理的问题长期未能解决。文中提出了底板全长预应力锚索与化学注浆联合支护解决方案,在实践中做到了一次支护就能有效控制围岩变形,避免巷道的反复整修。实现了软岩困难巷道防治底臌技术的突破,为矿井高效安全生产提供了可靠的技术手段。
The geological conditions of Yanjiahe Coal Mine are complicated and the problem of roadway floor heave is difficulty to solution. The paper proposed the combined support method of prestressed anchor cable with chemical grouting. Practice shows that the method can effective control the surrounding rock deformation and can provide reliable technical support for mine safe production.
出处
《陕西煤炭》
2012年第4期121-123,93,共4页
Shaanxi Coal
关键词
底臌
预应力锚索
软岩
注浆
floor heave
prestressed anchor cable
soft rock
grouting
