中空注浆锚索配合FSS化学浆支护在过断层中的应用

Combined Application of Hollow Grouted Anchor Cable and FSS Chemical Grouting in Passing through Faults

介绍了中空注浆锚索的结构、作用机理,以及采用FSS化学浆替代原水泥浆对围岩进行加固技术。巷道在过特殊构造时传统锚网索喷+梯子梁支护不能满足支护要求;巷道顶板出现下沉、锚索被拉断等现象时,通过使用中空注浆锚索配合FSS化学浆对围岩进行加固,可使顶板下沉得到有效控制,巷道加固取得了预期的效果。

When roadways pass through some special structures, traditional support of bolt wire cable and shotcrete with ladder shaped beams can not meet the requirement. Roof subsidence and broken anchor cables occur. Hollow grouted anchor cable is combined with FSS chemical grouting to reinforce the surrounding rocks. The roof subsidence is under the effective control and the expected reinforcement has been achieved.