摘要
煤矿回采巷道煤体围岩强度较低,受采动影响巷道围岩变形大,破坏严重。本文介绍了采用悬吊理论进行锚杆、锚索支护设计的方法。针对红阳三矿N31213工作面回采巷道变形破坏特点设计出合理的支护方案,巷道矿压观测数据表明该方案有效控制了巷道变形,取得良好的经济效益。
The surrounding rock of stoping excavation in coal mine had lower intensity,and its deformation and destruction were serious under mining influence.The suspension theory for bolt and anchor design was introduced in the paper.In view of the deformation character of stoping excavation in N31213 working face of Hongyang mine,reasonable support plan was designed.The strata pressure observation data showed that gateway deformation was controlled effectively,and the better economic benefit was obtained.
出处
《中国矿山工程》
2009年第6期29-31,共3页
China Mine Engineering
关键词
回采巷道
锚网索支护设计
矿压观测
stoping excavation
bolt-mesh-anchor support design
strata pressure observation
