松散地层井筒工程中地面预注浆工艺设计与施工

On design and construction for surface pre-grouting craft in shaft engineering with unconsolidated strata

根据竖井深度、断面直径、地层岩性等条件,介绍了松散地层井筒工程中地面预注浆的施工工艺及质量要求,并对其注浆效果进行了总结,提出了改进方案和存在的不足,以供类似工程参考。

According to the conditions of the shaft depth,the diameter of sections,and formation lithology,the paper introduces the construction craft and quality requirement for the surface pre-grouting craft in the shaft engineering with unconsolidated strata,sums up its grouting effect,and points out the improvement scheme and insufficient points,so as to provide some reference for similar projects.