| 膨胀土路基沉降的增量法分析 |
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| 引用本文： | 龚文惠,王元汉,郑俊杰.膨胀土路基沉降的增量法分析[J].华中科技大学学报(自然科学版),2003,31(1):114-116. |
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| 作者姓名： | 龚文惠 王元汉 郑俊杰 |
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| 作者单位： | 华中科技大学土木工程与力学学院 |
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| 基金项目： | 湖北省自然科学基金资助项目 (2 0 0 1ABB0 2 5 ) |
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| 摘 要： | 针对膨胀土路基沉降的特点，提出按增量法分析瞬时沉降、主固结沉降和胀缩沉降的步骤和方法，推导了相应的表达式，增量法的分析步骤是将路基沉降总划分为施工期和使用期两个时间区间，再划分为若干时段，先分区间逐时段计算各沉降分量的增量，然后迭加得到任意时刻的路基总沉降量，还就具体道路工程实例，进行了沉降量的计算和比较。
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| 关 键 词： | 膨胀土 路基沉降 瞬时沉降 增量法 道路工程 主固结沉降 胀缩沉降 |
| 文章编号： | 1671-4512(2003)01-0114-03 |
| 修稿时间： | 2002年9月6日 |
Numeral analysis of settlement of expansive soil roadbed |
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| Gong Wenhui,Wang Yuanhan,Zheng Junjie.Numeral analysis of settlement of expansive soil roadbed[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2003,31(1):114-116. |
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| Authors: | Gong Wenhui Wang Yuanhan Zheng Junjie |
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| Abstract: | Aiming at the characteristics of expansive soil roadbed, the paper proposed the increment method for analyzing transient settlement, main consolidation settlement and expansive contraction settlement, and deduced the corresponding calculation expressions. The analysis approaches of the increment method were: dividing the whole settlement course into two periods, construction period and using period; each period into some time section; calculating the increment of each settlement part within every section in each period; then adding them together to find the total settlement of expansive soil roadbed at any time. A typical road example, calculating the settlement according to the increment method and comparing the calculation settlement with the practical settlement were given. |
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| Keywords: | roadbed expansive soil settlement Increment method |
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