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（1 中交第三航務工程勘察設計院，上海 200032； 2 上海交通大學建工學院安全與防災研究所，上海 200030）

［摘要］通過對一小高層住宅沉降控制復合樁基設計方案的比較與分析，論證了在上海市西南角典型深厚軟土地基上，采用沉降控制復合樁基礎建造該類型小高層住宅樓的可行性。同時指出，設計中上部結構填充墻宜采用輕質材料，且設置一層地下室，以達到減小基礎附加應力、增加基礎剛度、有效控制基礎差異沉降的目的。

［關鍵詞］沉降控制復合樁基；?小高層建筑；?工程應用

Discussion on application of settlementcontrolled composite pile foundation in middleheight buildings in Shanghai

Chen Qifeng 1,Chen Longzhu 2

(1 CCCC Third Harbor Consultants Co.,Ltd, Shanghai 200032, China；

 2 Institute of Engineering Safety & Disaster Prevention, Shanghai Jiaotong University, Shanghai 200030, China)

Abstract:A 12-story apartment building using various design schemes for the settlement-controlled composite pile foundation is analyzed and it illustrates very encouraging foundation settlement for such middle-height buildings in Shanghai. Numerical analysis also indicates that, with the use of lightweight construction materials and design of one-floor basement, the settlement-controlled composite pile foundation can be more efficient in adjusting the additional stresses,increasing the rigidity of the foundation,and controlling the different settlement of the foundation.