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| 一种求解复合地基压缩模量的新方法 | |
| 引用本文： | 郑俊杰,区剑华,袁内镇,方秦汉. 一种求解复合地基压缩模量的新方法[J]. 铁道工程学报, 2003, 0(1): 117-119,116 |
| 作者姓名： | 郑俊杰 区剑华 袁内镇 方秦汉 |
| 作者单位： | 1. 华中科技大学岩土与地下工程研究所,湖北武汉,430074 2. 湖北省建筑科学研究设计院,湖北武汉,430071 3. 中铁大桥局桥梁勘测设计院,湖北武汉,430050 |
| 基金项目： | 湖北省自然科学基金(2002AB002),武汉市青年科技晨光计划(20025001032),华中科技大学科学研究基金 |
| 摘 要： | 应用参变量变分原理推导了复合模量在弹性及塑性状态下的解析解。该解在土为弹性状态时与目前工程常用的面积加权法结果一致 ,在土进入塑性状态时 ,与荷载及土的前后刚度比等因素有关。该方法为复合地基压缩模量的求解提供了一种新的思路 ,可为工程设计人员提供有益的参考。 |
| 关 键 词： | 路基 复合地基 复合模量 参变量变分原理 解析解 |
| 文章编号： | 1006-2106(2003)01-0117-03 |
A NEW WAY TO CALCULATE MODULUS OF COMPRESSIBILITY OF COMPOSITE FOUNDATION |
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| ZHENG Jun-jie ,OU Jian-hua ,YUAN Nei-zhen ,FANG Qing-han Huazhong University of Science and Technology, Hubei Institute of Building Research and Design. A NEW WAY TO CALCULATE MODULUS OF COMPRESSIBILITY OF COMPOSITE FOUNDATION[J]. Journal of Railway Engineering Society, 2003, 0(1): 117-119,116 | |
| Authors: | ZHENG Jun-jie OU Jian-hua YUAN Nei-zhen FANG Qing-han Huazhong University of Science Technology Hubei Institute of Building Research Design |
| Affiliation: | ZHENG Jun-jie 1,OU Jian-hua 1,YUAN Nei-zhen 2,FANG Qing-han 3 1Huazhong University of Science and Technology, 2Hubei Institute of Building Research and Design, 3Institute of Survey and Design,Bridge Bureau of MOR |
| Abstract: | The analytical solutions of composite modulus in both elastic and plastic conditions are deduced by applying parametric variational principle. The results show that the solution in elastic condition agrees with that calculated by conventional square-weighted average method, while the solution in plastic condition is related to factors including load and the ratio of soil stiffness in elastic condition to that in plastic condition. The solution provides a new way to calculate modulus of compressibility of composite foundation and is beneficial to engineers. |
| Keywords: | subgrade composite foundation composite modulus parametric variational principle analytical solution |
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