摘要
苏南某典型软土基坑,采用悬臂钻孔灌注桩结合坑外双轴水泥土搅拌桩止水,坑内采用搅拌桩暗墩加固。由于工程施工质量、地下室方案调整导致开挖深度增加等原因,周边变形较大,出现险情。通过对比原设计与实际施工情况下的支护结构的内力及变形,分析险情产生的原因。根据现场实际情况提出了有效的加固处理措施,控制基坑的继续变形,保证基坑的后续施工。
A typical soft soil foundation pit in Southern Jiangsu,foundation pit is supported by bored pile and cementsoil mixing pile,reinforcement in foundation pit.Engineering construction quality problem and increase of excavation depth result in large deformation of foundation pit.Calculates the internal force and deformation of retaining structure,analyzes the causes of the danger.Reinforcement treatment measures are proposed according to calculation analysis,continued deformation is controlled.
作者
周卫明
Zhou Weiming(Jiangyin Kebo Architectural Design Co. , Ltd, Jiangyin 214400, Jiangsu,China)
出处
《岩土工程技术》
2016年第5期223-228,234,共7页
Geotechnical Engineering Technique
关键词
软土
基坑
变形
加固
soft soil
foundation pit
deformation
reinforce
