Engineering characteristics of composite foundation with rigid-flexible and long-short piles

被引：0

作者：

Xie Xin-yu ^{[1
]}

Yang Xiang-ru ^{[1
]}

Shi Shang-wei ^{[1
,2
]}

Zhu Xiang-rong ^{[1
,3
]}

机构：

[1] Zhejiang Univ, Inst Geotech Engn, Hangzhou 310027, Zhejiang, Peoples R China

[2] Zhejiang Chengjian Bldg Design Inst, Hangzhou 310003, Zhejiang, Peoples R China

[3] Zhejiang Univ, Ningbo Inst Technol, Ningbo 315100, Zhejiang, Peoples R China

来源：

ROCK AND SOIL MECHANICS | 2007年 / 28卷 / 05期

关键词：

composite foundation with rigid-flexible and long-short piles; finite element; settlement; stress ratio of pile to soil;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The engineering characteristics of composite foundation with rigid-flexible and long-short piles are studied. By using the finite element method, the effects of cushion modulus, cushion thickness, short pile modulus, and long pile length on the total settlement of composite foundation, the stress ratio of long-short pile, and the axial stress of long-short pile are discussed respectively. The results show that the engineering characteristics of composite foundation can become more reasonable by optimizing material parameters; and long pile can effectively reduce settlement of composite foundation. Based on the in-situ measurement of pressures in soil and piles of a practical engineering in Wenzhou City, stress ratio of pile to soil and pressures in the process of construction are analyzed. Some conclusions are provided as references for future design and application of this kind of composite foundation.

引用

页码：877 / 882

页数：6

共 10 条

[1] [陈龙珠 Chen Longzhu], 2004, [建筑结构学报, Journal of Building Structures], V25, P125
[2] Collins I F, 1997, P ROYAL SOC LONDON A, V453
[3] On the relationship between stress-dilatancy, anisotropy, and plastic dissipation for granular materials
Collins, IF
Muhunthan, B
[J]. GEOTECHNIQUE, 2003, 53 (07): : 611 - 618
[4] A thermomechanical analysis of a family of soil models
Collins, IF
Kelly, PA
[J]. GEOTECHNIQUE, 2002, 52 (07): : 507 - 518
[5] A theoretical framework for constructing elastic/plastic constitutive models of triaxial tests
Collins, IF
Hilder, T
[J]. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 2002, 26 (13) : 1313 - 1347
[6] Germain P, 1983, T ASME, V105, p1 010
[7] Numerical analysis of composite piled raft with cushion subjected to vertical load
Liang, FY
Chen, LZ
Shi, XG
[J]. COMPUTERS AND GEOTECHNICS, 2003, 30 (06) : 443 - 453
[8] Meng SJ, 2005, ROCK SOIL MECH, V26, P33
[9] Reddy B., 1994, APPL MECH REV, V47, P429, DOI DOI 10.1115/1.3111086
[10] ZHENG Jun-jie, 2002, CHINESE J GEOTECHNIC, V25, P208

← 1 →