（1 中交第三航务工程勘察设计院，上海 200032； 2 上海交通大学建工学院安全与防灾研究所，上海 200030）

［摘要］通过对一小高层住宅沉降控制复合桩基设计方案的比较与分析，论证了在上海市西南角典型深厚软土地基上，采用沉降控制复合桩基础建造该类型小高层住宅楼的可行性。同时指出，设计中上部结构填充墙宜采用轻质材料，且设置一层地下室，以达到减小基础附加应力、增加基础刚度、有效控制基础差异沉降的目的。

［关键词］沉降控制复合桩基；?小高层建筑；?工程应用

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.