RESEARCH ON INSTABLE DEFORMATION CHARACTERISTICS OF RIGID PILE COMPOSITE FOUNDATION IN SATURATED SOFT SOIL

摘要：

Rigid pile composite foundation can be adopted to deep soft area, whose instable deformation characteristic is one of the key considerations in composite foundation design in saturate soft soil. The settlement and deformation discipline and pile stability of rigid pile composite foundation under flexible loads with different pile spacing is studied through centrifugal model test combined with numerical simulation. Test results indicate; with the pile spacing increasing from 3 m to 6 m, both the settlement of embankment center and outside uplift of slope toe are more than 15 mm. The coefficient of foundation reaches 0. 8 and the piles near slope toe have fractured. The composite foundation is instable, so pile spacing is suggested being within 4 m.

作者: Qian Su Hui-Xing Hu Bao-Wen Zhang Miao-Miao Song Hao Bai

作者单位: School of Civil Engineering,Southwest Jiaotong University,Chengdu,610031,China MOE Key Laboratory of School of Civil Engineering,Southwest Jiaotong University,Chengdu,610031,China

会议类型: 国际会议

会议名称: The International Symposium on Innovation & Sustainability of Structures in Civil Engineering(2011年土木工程结构创新与可持续发展国际会议)

会议地点: 厦门

会议语种:英文

页码: 630-634

在线出版日期: 2011-10-28（万方平台首次上网日期，不代表论文的发表时间）