与地下主体结构相结合的超大深基坑支护结构变形及内力特性分析  

Analysis and performance for deformation and internal-force of retaining and bracing system of super-large deep excavation combined with substructure of main building

作　　者：陆余年[1] 沈磊[1] 岳建勇[1] 

机构地区：[1]上海建筑设计研究院有限公司,上海200041

出　　处：《岩土工程学报》2006年第B11期1365-1369,共5页Chinese Journal of Geotechnical Engineering

摘　　要：结合上海软土地区长峰商城逆作法施工超大深基坑的实际工程,建立三维有限元分析模型。通过对有限元计算结果与实测数据的分析比较,探讨与地下主体结构相结合的超大深基坑支护结构变形规律及内力特征。The behavior and performance for retaining structures and bracing supported systems were presented combined with the substructure of the main building for deep excavation of basements of Changfeng Shopping Mall, a high-rise building in Shanghai soft ground. Up-to-down method with four levels of permanent bracing was applied for the super-large deep excavation works. To simulate the deep excavation work, a computation model of 3D finite element method was established. Through comparison between the calculated and measured results, performance for deformation and internal-force of retaining and bracing system combined with substructure of the building were discussed.

关 键 词：超大深基坑 超大深基坑支护结构 变形及内力特性 

分 类 号：TU473[建筑科学—结构工程]