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| 偏心荷重下转动浅基承载力的严密解法 | |
| 引用本文： | 姜朋明,陆长锋,梅国雄,倪俊,袁华荣.偏心荷重下转动浅基承载力的严密解法[J].岩土力学,2008,29(11):2957-2961. |
| 作者姓名： | 姜朋明 陆长锋 梅国雄 倪俊 袁华荣 |
| 作者单位： | 1. 江苏科技大学,土木工程系,江苏,镇江,212003 2. 南京工业大学,土木学院,南京,210019 3. 镇江市地质矿产研究所,江苏,镇江212003 |
| 基金项目： | 国家自然科学基金 ， 镇江市社会发展项目 |
| 摘 要： | 根据偏心荷载作用下地基失稳的特征,构建了偏心荷重下地基极限状态时土体中不连续应力场和速度场,分析了土体中不连续应力场和速度场的特点.基于上、下限原理的推论,建立计算模型,构建求解地基极限承载力的算法,通过解三类边值问题,求得偏心荷重下转动浅基极限承载力的严密解,该解满足刚性基础转动的速度边界和其他已知的边界条件.算例表明解垂直偏心荷载下地基极限平衡问题的解法是可行的,且结论可靠. |
| 关 键 词： | 极限分析 地基承载力 滑移线 上下限定理 |
| 收稿时间： | 2007-09-21 |
Rigorous solution method for bearing capacity of rotating ground under eccentric loads |
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| JIANG Peng-ming,LU Chang-feng,MEI Guo-xiong,NI Jun,YUAN Hua-rong.Rigorous solution method for bearing capacity of rotating ground under eccentric loads[J].Rock and Soil Mechanics,2008,29(11):2957-2961. | |
| Authors: | JIANG Peng-ming LU Chang-feng MEI Guo-xiong NI Jun YUAN Hua-rong |
| Institution: | 1. Department of Civil Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China; 2. College of Civil Engineering, Nanjing University of Technology, Nanjing 210019, China, 3. Zhenjiang Institute of Geology for Mineral Resources, Zhenjiang 212003, China |
| Abstract: | Based on the characters of ground failure under eccentric loads, the discontinuous stress fields and discontinuous velocity fields are constructed. The characters of discontinuous lines of stress and velocity are analyzed. By upper and lower bound theorems, the model of calculation and the method for bearing capacity are given. The stress fields and the corresponding mobile fields are obtained by the numerical calculation to solve three kinds of boundary value problems. The stress fields satisfied with all ... |
| Keywords: | limit analysis bearing capacity slip line upper and lower bound theorems |
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