| 非饱和土中有效应力及有关概念的解说与辨析 |
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| 引用本文： | 汤连生,颜波,张鹏程,张庆华.非饱和土中有效应力及有关概念的解说与辨析[J].岩土工程学报,2006,28(2):216-220. |
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| 作者姓名： | 汤连生 颜波 张鹏程 张庆华 |
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| 作者单位： | 中山大学地球与环境科学学院地球科学系岩土工程研究所；中山大学地球与环境科学学院地球科学系岩土工程研究所 广东广州510275；广东广州510275；广州市城市规划勘测设计研究院；广东广州510060； |
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| 基金项目： | 中国科学院资助项目;广东省博士启动基金;广东省科技厅科技计划;广东省地质勘查局地质科研项目 |
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| 摘 要： | 对非饱和土中有效应力及其有关的诸如表面张力、基质吸力、湿吸力、本征结构吸力和可变结构吸力进行了系统的解说与辨析,由此提出了同时适应非饱和土和饱和土的统一的有效应力新概念及公式,并且结合特殊性土实例说明了非饱和土的有效应力公式。
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| 关 键 词： | 非饱和土 表面张力 毛细现象 吸力 有效应力 |
| 文章编号： | 1000-4548（2006）02-0216-05 |
| 收稿时间： | 2005-06-30 |
| 修稿时间： | 2005-06-30 |
Definition and exploration for effective stress and related conception in unsaturated soil |
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| TANG Lian-sheng,YAN Bo,ZHANG Peng-cheng,ZHANG Qing-hua.Definition and exploration for effective stress and related conception in unsaturated soil[J].Chinese Journal of Geotechnical Engineering,2006,28(2):216-220. |
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| Authors: | TANG Lian-sheng YAN Bo ZHANG Peng-cheng ZHANG Qing-hua |
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| Affiliation: | 1.Department of Earth Sciences Institute of Geotechnical Engineering Zhongshan University Guangzhou 510275 China 2.Guangzhou Uurban Planning Design and Survey Research Institute Guangzhou 510060 China |
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| Abstract: | The effective stress for unsaturated soils was reviewed, and the surface tension, matrix potential, absorbed suction, intrinsic structure suction and variable structure suction were defined and discriminated rigorously. Then a new concept and the unified formula of effective stress for saturated soils as well as for unsaturated soils were proposed. The effective stress formula was also analyzed by use of an actual case. |
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| Keywords: | unsaturated soil surface tension capillarity suction effective stress |
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