摘要
大峪沟矿务局红旗井-400 m水平轨道巷地质条件较差,采用一般支护方式无法保证巷道的稳定性,决定结合及时观测、采用让压锚注施工二次支护方式对巷道进行施工。通过现场监测,让压与锚注施工技术在该矿-400 m水平轨道巷获得了成功,达到了支护巷道的目的,解决了红旗井“三软”巷道支护困难的问题。
Red flag well in Dayugou coal mine group is a well that geologic condition is weak. It cant ensure the stability of the drift to adopt normal supporting way. So they decide adopt bolt grouting construction. After monitoring at the scene, this technology was succeed in this coal mine, achieving the aim to support the drift and solve the problem in red flag well.
出处
《煤》
2006年第5期4-7,共4页
Coal
关键词
“三软”巷道
软岩
地应力
让压锚注施工
＂three soft＂ drift
soft rock
crustal stress
bolt grouting construction
