| 基于含水量变化对土体强度影响的高边坡稳定分析 |
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| 引用本文： | 盛维高,李国维,袁俊平. 基于含水量变化对土体强度影响的高边坡稳定分析[J]. 水利水电科技进展, 2009, 29(1): 12-15. DOI: 10.3880/j.issn.1006-7647.2009.01.004 |
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| 作者姓名： | 盛维高 李国维 袁俊平 |
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| 作者单位： | 1. 江苏省淮沭新河管理处,江苏,淮安,223005
2. 河海大学岩土工程研究所,江苏,南京,210098 |
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| 摘 要： | 利用土水特征曲线,建立了非饱和土含水量与强度的关系式,并用其对某高速公路残积土高边坡进行稳定分析。通过土体含水量在高边坡稳定分析中的应用,提出把含水量作为边坡稳定分析的重要参数,采用土体非饱和强度参数计算得到的边坡稳定安全系数比采用饱和强度参数得到的边坡稳定安全系数大,更接近边坡实际工况。
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| 关 键 词： | 土水特征曲线 抗剪强度 含水量 边坡稳定 |
| 修稿时间： | 2009-02-18 |
Stability analysis of high slopes based on the influence of water content change on soil strength |
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| SHENG Wei-gao,LI Guo-wei,YUAN Jun-ping. Stability analysis of high slopes based on the influence of water content change on soil strength[J]. Advances in Science and Technology of Water Resources, 2009, 29(1): 12-15. DOI: 10.3880/j.issn.1006-7647.2009.01.004 |
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| Authors: | SHENG Wei-gao LI Guo-wei YUAN Jun-ping |
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| Abstract: | The relationship between water content and strength of unsaturated soils is established using the soil-water characteristic curve.The curve is used to analyze the stability of a high residual soil slope of a highway. It reveals that the water content of soil plays an important role in high slope stability.It is therefore suggested that the water content of soil be a required parameter in high slope stability analysis.The safety factor of a slope calculated from unsaturated soil strength parameter is larger than that from saturated soil strength parameter,and the former is closer to the actual conditions. |
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| Keywords: | soil-water characteristic curve shear strength water content slope stability |
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