| 绕墙中转动刚性挡土墙极限土压力的严密解 |
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| 引用本文： | 姜朋明,陆长锋,沈珠江,梅国雄.绕墙中转动刚性挡土墙极限土压力的严密解[J].工程力学,2008,25(11). |
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| 作者姓名： | 姜朋明 陆长锋 沈珠江 梅国雄 |
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| 作者单位： | [1]江苏科技大学土木工程系,江苏镇江212003 [2]南京理工大学理学院,江苏南京210014 [3]清华大学水利水电工程系,北京100084 [4]南京工业大学土木学院,江苏南京210019 |
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| 基金项目： | 国家自然科学基金，江苏省镇江市社会发展基金 |
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| 摘 要： | 分析刚性挡土墙绕墙中某点转动时,墙后土体中的不连续应力场。根据应力不连续线和速度不连续的特点,利用上限、下限原理,构建算法,通过解三类边值问题,求得在考虑有重土、土和墙体摩擦情况下,墙后土体在挡土墙绕墙中某点转动下土体的静力场。同时对对应的机动场进行分析,在众多的静力场中找出了满足转动的速度边界条件的应力场,得到绕墙中转动下挡土墙土压力的精确数值解。算例表明:同时利用上限、下限定理求解第一类极限平衡问题近似解的算法是可行的。
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| 关 键 词： | 岩土工程 极限分析 滑移线 土压力 上下限定理 数值计算 |
RIGOROUS SOLUTION OF ULTIMITE SOIL PRESSURE AGAINST RIGID RETAINING WALLS |
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| JIANG Peng-ming,LU Chang-feng,SHEN Zhu-jiang ,MEI Guo-xiong.RIGOROUS SOLUTION OF ULTIMITE SOIL PRESSURE AGAINST RIGID RETAINING WALLS[J].Engineering Mechanics,2008,25(11). |
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| Authors: | JIANG Peng-ming LU Chang-feng SHEN Zhu-jiang MEI Guo-xiong |
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| Affiliation: | 1. Department of Civil Engineering;Jiangsu University of Science and Technology;Zhenjiang;Jiangsu 212003;China;2. School of Sciences;Nanjing University of Science and Technology;Nanjing;Jiangsu 210014;3. Department of Hydraulic Engineering;Tsinghua University;Beijing 100084;4. College of Civil Engineering;Nanjing University of Technology;Jiangsu 210019;China |
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| Abstract: | According to characteristics of stress discontinuous lines, the discontinuous stress field in soil caused by the retaining wall, which tends to rotate about some point in the wall, are analyzed. Based on the upper and lower bound theorems, the stress slide field was obtained by numerical calculations, and three kinds of boundary value problems are solved correspoindingly. In the analysis, the weight of soil and the friction between soil and the retaining wall were taken into account. Morover, the correspond... |
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| Keywords: | geotechnical engineering limit analysis slip line earth pressure upper and lower bound theorems numerical calculation |
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