| 考虑降雨对土体强度影响的公路高边坡稳定分析 |
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| 引用本文： | 张国炳,袁俊平,张立伟.考虑降雨对土体强度影响的公路高边坡稳定分析[J].公路,2005(9):106-110. |
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| 作者姓名： | 张国炳 袁俊平 张立伟 |
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| 作者单位： | 1. 广东粤赣高速公路有限公司,河源市,517000
2. 河海大学岩土所,南京市,210098 |
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| 基金项目： | 广东省交通科技项目（2004-16） |
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| 摘 要： | 边坡工程中，土体一般处于非饱和状态，将非饱和土力学理论应用于边坡稳定分析，已成为当今岩土工程研究中的一个热点。总结了非饱和土力学理论，特别是土水特征曲线的研究现状，利用土水特征曲线，建立了一个非饱和土含水量与强度的关系式，并用来对粤赣高速公路残积土高边坡进行了稳定分析。揭示了土体含水量在高边坡稳定分析中的重要作用，提出把含水量作为边坡稳定分析的一个重要参数，该计算分析思想在高速公路高边坡设计和施工中具有广泛的参考价值。
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| 关 键 词： | 非饱和土 土水特征曲线 抗剪强度 边坡稳定 |
| 文章编号： | 0451-0712（2005）09-0106-05 |
| 收稿时间： | 2005-08-12 |
| 修稿时间： | 2005-08-12 |
Stability Analysis of Highway High Slope of Soil Strength Affected by Rain |
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| ZHANG Guo-bing,YUAN Jun-ping,ZHANG Li-wei.Stability Analysis of Highway High Slope of Soil Strength Affected by Rain[J].Highway,2005(9):106-110. |
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| Authors: | ZHANG Guo-bing YUAN Jun-ping ZHANG Li-wei |
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| Institution: | ZHANG Guo-bing, YUAN Jun-ping, ZHANG Li-wei (1. Guandong Provincial Yue-Gan Expressway Co. Ltd. ,Heyuan 517000, China; 2. Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China |
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| Abstract: | Soils in slope engineering are commonly at unsaturated state.The applications of unsaturated soil mechanics in slope stabilities analysis becomes a hotspot in geotechnical researches.The states of arts on unsaturated soil mechanics especially on the soil-water characteristics curve(SWCC) are summarized.A formula is put forward to describe the relationship between water content and strength of unsaturated soils.The formula is applied in the stability analysis of a residual soil slope in Yue-Gan Expressway.The water content of the soil is verified to be very important for slope stability and it is suggested to be a necessary parameter for slope stabilities analysis.The caculation and analysis methods may be widely refered in the design and construction of highway slope. |
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| Keywords: | unsaturated soil SWCC shear strength slope stability |
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