昆明某深基坑工程土体渗透破坏分析及治理

Analysis and Treatment of a Deep Foundation Pit Excavation in Kunming Due to Seepage Failure of Soil

昆明某深基坑工程采用土钉墙作为支护形式,在基坑开挖至粉土层时,局部坡体发生滑塌破坏。本文详细介绍了该工程的特点和支护方案,分析粉土层发生渗透破坏的原因,并提出相应的防治措施,供其它相类似工程参考。

The soil-nailing wall was adopted as the pit-protection system of a deep foundation pit in Kunming.When pit excavation was taken in silt layer,slope collapse occurred locally.The characteristics of the project and the support scheme are introduced in detail.The reasons of seepage failure in silt layer are analyzed and related treatments are proposed to let other similar projects refer to.