| 非饱和路基土水分运移的室内试验研究 |
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| 引用本文： | 王桂尧,李斌,付宏渊.非饱和路基土水分运移的室内试验研究[J].岩土力学,2010,31(1):61-65. |
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| 作者姓名： | 王桂尧 李斌 付宏渊 |
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| 作者单位： | 长沙理工大学 土木与建筑学院，长沙 410076 |
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| 基金项目： | 湖南省科技计划项目，湖南省交通科技项目 |
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| 摘 要： | 模拟路基填土的实际情况，研究设计了不同表面辐射温度和降雨强度的非饱和土水分运移的室内试验方法。通过测定土样在相应边界条件下土体不同深度位置的含水率随时间的变化，揭示了温度、压实度、降雨强度3个因素对非饱和土水分运移影响的规律，据此探讨了路基填土的水分运移规律，认为提高压实度能显著减少水分运移变化。
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| 关 键 词： | 路基 非饱和土 水分运移 试验 影响因素 |
| 收稿时间： | 2008-07-11 |
Experimental study of moisture migration of unsaturated soil in embankment |
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| WANG Gui-yao,LI Bing,FU Hong-yuan.Experimental study of moisture migration of unsaturated soil in embankment[J].Rock and Soil Mechanics,2010,31(1):61-65. |
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| Authors: | WANG Gui-yao LI Bing FU Hong-yuan |
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| Institution: | School of Civil and Architecture Engineering, Changsha University of Science & Technology, Changsha 410076, China |
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| Abstract: | Considering the practice of embankment construction ,an experimental method used to study moisture migration in unsaturated soil considering influence of the heat radiation of earth surface and rainfall is designed. According to the measurements of water content change in different depths and time under corresponding boundary condition, the rule of moisture migration of unsaturated soil is revealed due to influenced by different surface temperatures, compactness and rainfall intensities. Forthermore, the rule of moisture migration in embankment is discussed; and the conclusion that the higher compactness will reduce moisture migration rate greatly, is drawn. |
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| Keywords: | embankment unsaturated soil moisture migration experiment influential factor |
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