|本期目录/Table of Contents|

[1]张 伟,王 晖,孙克俐.桶形基础承载力的三维弹塑性有限元分析[J].天津大学学报(自然科学版),2009,(12):1041-1047.
 ZHANG Wei,WANG Hui,SUN Ke-li.Three-Dimensional Elasto-Plastic FEM Analysis of Bearing Capacity of Bucket Foundation[J].Journal of Tianjin University,2009,(12):1041-1047.
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桶形基础承载力的三维弹塑性有限元分析()
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《天津大学学报(自然科学版)》[ISSN:0493-2137/CN:12-1127/N]

卷:
期数:
2009年12
页码:
1041-1047
栏目:
建筑工程
出版日期:
2009-12-15

文章信息/Info

Title:
Three-Dimensional Elasto-Plastic FEM Analysis of Bearing Capacity of Bucket Foundation
文章编号:
0493-2137(2009)12-1041-07
作者:
张 伟王 晖孙克俐
天津大学建筑工程学院,天津 300072
Author(s):
ZHANG WeiWANG HuiSUN Ke-li
School of Civil Engineering,Tianjin University,Tianjin 300072,China
关键词:
软土桶形基础几何参数弹塑性承载力
Keywords:
soft claybucket foundationgeometrical parameterselasto-plasticitybearing capacity
分类号:
U656.116;TP391
文献标志码:
A
摘要:
 在经典的Drucker-Prager 弹塑性本构模型基础上,通过将线性屈服准则改为抛物线型屈服准则来模拟静水压力对土体的屈服与破坏,并根据试验确定的硬化曲线建立了改进的D-P 模型,使该本构模型能很好地模拟大港滩海软土的应力应变关系.利用MARC.MSC 程序作为平台,建立了滩海桶形基础承载力有限元分析模型,对桶高、桶径及不同径高比的桶形基础承载力进行分析.结果表明,实际应用时应采用径高比大于1的桶形基础.
Abstract:
Based on classic Drucker-Prager elasto-plastic constitutive model,work hardening relation is added to establish an updated D-P model in which linear yielding rule is changed into parabolic rule. So it can simulate the stress-strain relation of soft clay from shallow water in Dagang. Using MARC.MSC program, the model of bearing capacity of bucket foundation in shallow water is established. Bearing capacities of bucket foundations with different diameters,heights,ratios of diameter to height (D/H)are analyzed. Results show that bucket foundation with D/H>1 is better in practice.

参考文献/References:

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[2] Bye A,Erbrich C,Rognlien B,et al. Geotechnical design of bucket foundations[C]// Proceedings of 27th Offshore Technology Conference.Houston,1995,OTC7793:869- 883.
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备注/Memo

备注/Memo:
收稿日期:2008-11-03;修回日期:2009-01-22.
基金项目:国家高技术研究发展计划(863 计划)资助项目(2006AA09Z348).
作者简介:张 伟(1970— ),男,博士,副教授. 通讯作者:张 伟,zhangwei18@eyou.com.
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