水泥搅拌桩挡墙内墙肢坍塌剥离的原因与处理

Reasons caused the partial collapse and spallation of gravity retaining wall and treatment measures

结合广州开发区某工程实例,从地质、施工、设计三方面分析了重力式挡墙内墙肢局部坍塌剥离的原因,提出了加固处理的方案,指出在设计时应注意水泥的选择及水泥掺入量,在施工质量控制方面应注意单桩成桩的质量和增加重力式挡墙的整体性,以提高基坑的稳定性。

Combined with one practical works,from three aspects： geology, construction and design reasons caused the partial collapse and spallation inside of gravity retaining wall are analyzed,at the same time corresponding treatment scheme is proposed.Author points out that in design the selection and additive amount of cement should be paid more attention.The quality of single cement mixed pile should be well controlled to ensure the integrity of gravity retaining wall and the stability of foundation pit.