摘要
针对深井软岩巷道底臌严重的现象,结合某千米深井软岩巷道具体条件,分析了巷道剧烈底臌的原因,提出采用预应力注浆锚索的方法控制巷道围岩,现场试验结果显示取得了较好的控制效果,在此基础上分析了注浆锚索加固底板作用机制。
According to the serious phenomenon of deep well soft rock roadway tunnel floor heave, combining the concrete condition of soft rock roadway in some Kilometers deep mine, the reasons of violent floor lift in tunnel are analysed and the prestressed injection and cable anchors methods in control of roadway surrounding rock are proposed, which the good control effect is showed in the field test.
出处
《中国科技信息》
2013年第24期70-72,共3页
China Science and Technology Information
关键词
巷道底臌
预应力锚索
底板注浆
roadway floor heave
prestressed anchor
floor grouting
