DEFINITION OF RELATIVE RIGIDITY AND PROPER RAFT THICKNESS OF PILE-RAFT FOUNDATION

Chen Yunmin; Chen Renpeng; Huang Haidan

doi:10.13204/j.gyjz200505001

Volume 35 Issue 5

Dec. 2014

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Feng Zhiyan, Han Xingzhao, Zheng Xiang. STATISTIC ANALYSIS OF EFFECT FOR LOW-MIDDLE ENERGY DYNAMIC COMPACTION IN ELIMINATING COLLAPSIBILITY OF LOESS[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(2): 53-56. doi: 10.13204/j.gyjz201102014

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Chen Yunmin, Chen Renpeng, Huang Haidan. DEFINITION OF RELATIVE RIGIDITY AND PROPER RAFT THICKNESS OF PILE-RAFT FOUNDATION[J]. INDUSTRIAL CONSTRUCTION, 2005, 35(5): 1-4,23. doi: 10.13204/j.gyjz200505001

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DEFINITION OF RELATIVE RIGIDITY AND PROPER RAFT THICKNESS OF PILE-RAFT FOUNDATION

doi: 10.13204/j.gyjz200505001

1.
1. Institute of Geotechnical Engineering,Zhejiang University Hangzhou 310027;
2.
2. Shanghai Branch,Hebei Provincial Architectural Design &Research Institute Shanghai 200125

Received Date: 2004-01-28
Publish Date: 2005-05-20

Abstract

Abstract

A new type of relative rigidity expression of pile- raft foundation is proposed using pile- raft foundation's simplified analytic method with interaction taken into account, it is analyzed that the effect of pile-raft foundation's relative rigidity on settlement of the raft, internal forces and reaction distribution of pile head; the relationship between the relative rigidity and length/width ratio of the raft is also researched. A rational formula of the raft thickness is put forward according to giving full play to the bearing capacity of the piles. Finally the rationality of the formula and the feasibility of engineering use are verified by two examples.
- coaction,
- relative rigidity,
- length/width ratio,
- raft thickness

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References(10)

References

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[2] Poulos H G. Pile Behavior -Theory and Application. Geotechnique,1989,39(3) :365 ～ 415;

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[5] 宰金珉.高层建筑地基与基础设计中的几个问题.见:21世纪高层建筑基础工程学术会议论文集.北京:中国建筑工业出版社,2000;

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[8] 凌道盛,陈云敏,丁皓江.任意基础板的有限元分析.岩土工程学报,2000,22(4):450～455;

[9] Sommer H, Wittmann P, Ripper P. Piled Raft Foundation of a Tall Building in Frankfurt Clay. In: Proc. 11 Int. Conf. ON SMFE, 1985,4:2 253 ～ 2 257;

[10] 陈仁朋,凌道盛,陈云敏.群桩基础沉降计算中的几个问题.土木工程学报,2003,36(10):89～94

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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DEFINITION OF RELATIVE RIGIDITY AND PROPER RAFT THICKNESS OF PILE-RAFT FOUNDATION

doi: 10.13204/j.gyjz200505001

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DEFINITION OF RELATIVE RIGIDITY AND PROPER RAFT THICKNESS OF PILE-RAFT FOUNDATION

doi: 10.13204/j.gyjz200505001

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