摘要
新兴煤矿在沿空留巷中推广了预应力锚索支护,探索了其不同情况下的布置方式,改善了深部围岩支护效果,收到了较好的经济效益。
In the gob-side retaining entry of Xinxing mine, pre-stressed cable anchor support is applied. Its distributions under different situations are explored. The study points out that the support effect for the deep surrounding rocks is improved and better economic benefit is achieved.
出处
《山西煤炭》
2010年第5期61-62,共2页
Shanxi Coal
关键词
预应力
锚索支护
沿空留巷
顶底移近量
pre-stress
cable anchor support
gob-side retaining entry
top-and-bottom displacement
