摘要
结合工程实例来探讨逆作开挖条件下控制深基坑卸载变形的方法、原理和技术。在工程实践的基础上提出结合坑内土体加固采用时空效应法的开挖技术是逆作开挖条件下控制深基坑卸载变形,保护周边环境和设施的有效方法。
By analyzing the case of deep excavation of Shanghai Urban Planning Exibition Center, some deflection controlling measures and principles were illustrated by use of the top-down excavation method. Base on the practices, it was concluded that the ＂Time-space effects＂ excavation method combining with the ground reinforcement could be employed to control the deflection in deep foundation pits under the top-down construction condition, and consequently to protect the neighboring facilities.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2007年第2期304-308,共5页
Chinese Journal of Geotechnical Engineering
关键词
深基坑
逆作开挖
变形控制
deep foundation pit
top-down excavation
deflection control
