VM荷载下双层饱和黏土地基承载特性数值分析

詹云刚; 栾茂田; 袁凡凡

doi:10.13204/j.gyjz200901015

VM荷载下双层饱和黏土地基承载特性数值分析

doi: 10.13204/j.gyjz200901015

1.
1. 江苏科技大学船舶与海洋工程学院,江苏镇江 212003;
2.
2. 大连理工大学土木水利学院岩土工程研究所,辽宁大连 116024;
3.
3. 大连理工大学海岸及近海工程国家重点实验室,辽宁大连 116024;
4.
4. 中国科学院武汉岩土力学研究所,武汉 430071

基金项目:

国家自然科学基金重点基金资助项目(50639010);国家自然科学基金资助项目(50509023)

详细信息

作者简介:
詹云刚,男,1971年5月出生,博士,讲师.E-mail:zygseastar@163.com

计量
- 文章访问数: 48
- HTML全文浏览量: 7
- PDF下载量: 43
- 被引次数: 0
出版历程
- 收稿日期: 2008-08-22
- 刊出日期: 2009-01-20

NUMERICAL ANALYSIS FOR BEARING CAPACITY BEHAVIOR OF FOOTINGS ON UNDRAINED TWO-LAYERED SATURATED CLAY UNDER VM LOADING

1.
1. School of Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China;
2.
2. Institute of Geotechnical Engineering,School of Civil and Hydraulic Engineering,Dalian University of Technology,Dalian 116024,China;
3.
3. State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China;
4.
4. Wuhan Institute of Rock and Soil Mechanics,The Chinese Academy of Sciences,Wuhan 430071,China

摘要

摘要: 复合加载下地基的承载特性是港口、海洋工程基础设计的关键问题。近来,极限荷载包络图取代了经典的承载力计算方法,用于评价复合加载下地基的组合极限承载力。以大型通用有限元软件ABAQUS为计算工具,对VM荷载作用下层状饱和黏土地基上基底完全粘结的条形基础承载力进行系统的变参数计算,研究地基土层强度特性、荷载组合等因素对地基承载力及破坏模式的影响规律,得出VM荷载作用下极限荷载的包络图,为港口、海洋工程基础设计提供参考。
- 有限元分析 /
- 地基 /
- 极限承载力 /
- 极限荷载包络图
Abstract: The bearing capacity behavior of foundations under combined loading is one of the key issues in design of offshore structures. Recently, limit load envelope diagram is used to replace traditional calculations of limit bearing capacity to evaluate the combined limit bearing capacity of foundations. In this paper, FEM parameter study of bearing capacity of foundations under VM loading is performed using software ABAQUS. And the foundations are simplified as footings on the surface of undrained two- layered saturated clay with unlimited tension between footing and subsoil. The effects of soil strength profile and combined loading on the subsoil capacity and failure mode are investigated. A limit load diagram under VM load is also presented and can be used to develop and improve the design of offshore foundations.
- finite element analysis /
- foundation /
- ultimate bearing capacity /
- limit load envelope

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参考文献(12)

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