底面为曲面基础地基极限承载力上限解

韩长玉; 夏小和; 王建华

底面为曲面基础地基极限承载力上限解 English Version

上海交通大学土木工程系，上海 200240

基金项目: 国家自然科学基金项目（ 41172251 ）

详细信息

作者简介:
韩长玉 (1979 – ) ，男，河南开封人，博士研究生，主要从事工程力学、岩土工程等方面的研究。

中图分类号: TU47
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出版历程
- 收稿日期: 2010-11-14
- 发布日期: 2012-02-19

Upper bound solutions of ultimate bearing capacity of curved footing

Department of Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China

摘要

摘要: 为了解决曲面基础作用于土体的极限承载力问题，改进了 Prandtl 机构和 Hill 机构，利用极限分析理论，得到了底面为曲面基础地基极限承载力的上限解；通过两者的比较，以及与底面为平面基础地基极限承载力的比较，所得的上限解大于处于地基表面的平面基础地基极限承载力的上限解，小于埋深为基础宽度一半的平面基础地基极限承载力的上限解，研究结果可供地基承载力设计及计算参考。
- 极限承载力 /
- 上限解 /
- 曲面基础
Abstract: The bearing capacity of curved footing over foundation soil is considered. In order to solve the ultimate bearing capacity of curved footing on the soil, the Prandtl and the Hill mechanisms are improved. The kinematic approach of the limit analysis is used to calculate the average limit pressure under footings. Using the limit analysis methods, the upper bound solutions of the ultimate bearing capacity are obtained. By comparison, the solutions are greater than those of the ultimate bearing capacity of the plane footing and less than those of the ultimate bearing capacity of the plane footing with which the buried depth is half the width. The analytical solutions can be used for calculation of curved footing.
- ultimate bearing capacity /
- upper bound solution /
- curved footing

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参考文献(12)

[1]	PRANDTL L. Uber die eindringungsfestigkeit (harte) Plastischer baustoffe und die festigkeit von seheiden[J]. Journal of APPlied Mathematies and Mechanics(ZAMM), 1921, 1 (1) : 15 – 20.
[2]	Terzaghi. Soil mechanics in engineering practice[M]. New York: Wiley, 1976.
[3]	MEYERHOF G G. The ultimate bearing capacity of foundations[J]. Géotechnique , 1951(2): 301.
[4]	MEYERHOF G G. The Ultimate Bearing Capacity of Wedgeshaped foundations[J]. Soil Mechanics, 1961, 2: 105.
[5]	武科 , 栾茂田 , 范庆来 , 等 . 倾斜荷载作用下桶形基础承载力特性研究 [J]. 岩土力学 , 2009, 30 (4): 1095 – 1101. ( WU Ke, LUAN Mao-tian, FAN Qing-lai, et al. Studies of bearing capacity of bucket foundation against inclined loading[J]. Rock and Soil Mechanics , 2009, 30 (4): 1095 – 1101. (in Chinese))
[6]	ZHAO Lan, WANG Jian-hua. Influence of nonassociativity on the bearing capacity factors of a circular footing[J]. Journal of Shanghai Jiaotong University(Science) , 2009(4): 429 – 434.
[7]	KUO Y L. ANN-based model for predicting the bearing capacity of strip footing on multi-layered cohesive soil[J]. Computers and Geotechnics, 2008(7): 503 – 416.
[8]	徐干成 , 李成学 , 刘平 . 各向异性和非均质地基土上浅基础的极限承载力 [J]. 岩土工程学报 , 2007, 29 (2): 164 – 168. ( XU Gan-cheng, LI Cheng-xue, LIU Ping. Ultimate bearing capacity of shallow footing on anisotropic and nonhomogeneous clays[J]. Chinese Journal of Geotechnical Engineering, 2007, 29 (2): 164 – 168. (in Chinese))
[9]	AL-SHAMRANI M A. Upper-bound solutions for bearing capacity of strip footings over anisotropic nonhomogeneous clays[J]. Soils and Foundations, The Japanese Geotechnical Society, Tokyo, 2005, 45 (1): 109 – 124.
[10]	YANG Feng, YANG Jun-sheng, A revised failure mechanism of strip footings for upper bound solution[J]. Electronic Journal of Geotechnical Engineering, 2008, Bundle F, 13:1 – 17.
[11]	黄茂松 , 秦会来 , 郭院成 . 非均质和各向异性黏土地基承载力的上限解 [J]. 岩石力学与工程学报 , 2008, 27 (3): 511 – 518. ( HUANG Mao-song, QIN Hui-lai, GUO Yuan-cheng. Upper bound solution for bearing capacity of nonhomogeneous and anisotropic clay foundation[J]. Chinese Journal of Rock Mechanics and Engineering, 2008, 27 (3): 511 – 518 . (in Chinese))
[12]	张其一 , 栾茂田 , 袁凡凡 , 等 . 复合加载情况下非均匀地基上矩形基础承载力研究 [J]. 岩土工程学报 , 2008, 30 (7): 970 – 975. (ZHANG Qi-yi, LUAN Mao-tian, YUAN Fan-fan, et al. Bearing capacity of rectangular footings on inhomogeneous foundation under combined loading[J]. Chinese Journal of Geotechnical Engineering, 2008, 30 (7): 970 – 975. (in Chinese))

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文章访问数: 1210
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底面为曲面基础地基极限承载力上限解 English Version

作者简介: 韩长玉 (1979 – ) ，男，河南开封人，博士研究生，主要从事工程力学、岩土工程等方面的研究。

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Upper bound solutions of ultimate bearing capacity of curved footing

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出版历程

目录

作者简介:
韩长玉 (1979 – ) ，男，河南开封人，博士研究生，主要从事工程力学、岩土工程等方面的研究。