插筋排架法处治隧洞塌方研究

Consolidation technology of inserted-rod & bent for tunnel collapse zone

某灌溉隧洞工程进口因发育断层破碎带塌方而使开挖被迫中断,应用锚喷支护和拱架支护方法处理塌方,没有成功,改用插筋排架法处理塌方,使问题得到满意解决。本文详细介绍了处理方法的选定、实施情况,得到了一些有益的结论。

An irrigation tunnel in imports was forced interruption by collapse caused by fracture zone development. Application of the steel arch support and bolt-shotcreting support to collapse zone, without success, to use inserted - rod and bent consolidation technology treated collapse zone, so that the problems had been satisfactorily resolved. Construction method of selection and implementation were described in detailly, and some instructive conclusions are obtained in this paper.