| 影响岩质路堑边坡表层土稳定性因素的敏感度分析 |
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| 引用本文： | 赵志明,王喜华.影响岩质路堑边坡表层土稳定性因素的敏感度分析[J].水利与建筑工程学报,2012,10(5):22-25. |
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| 作者姓名： | 赵志明 王喜华 |
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| 作者单位： | 1. 西南交通大学地球科学与环境工程学院,四川成都,610031
2. 西南石油大学资源与环境学院,四川成都,610500 |
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| 基金项目： | 中央高校基本科研业务费专项资金资助(SWJTU09BR033) |
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| 摘 要： | 针对渝怀铁路鱼嘴车站岩质路堑植被边坡,采用直剪切试验获得边坡表层绿色防护层的物理力学参数。在此基础上,选取5个影响边坡表层土稳定性的因素(坡度、土层厚度、重度、粘聚力、内摩擦角),采用数学及数理统计的方法进行敏感度分析,得出各影响因素的敏感度顺序为内摩擦角>坡度>重度>土层厚度>粘聚力,分析表明绿色防护层的内摩擦角是控制其稳定性的主控因素。
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| 关 键 词： | 植被护坡 稳定性因素 敏感度分析 |
Sensitivity Analyses for Influencing Factors on Surface Soil Stability of Rock-cutting Soil |
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| ZHAO Zhi-ming,WANG Xi-hua.Sensitivity Analyses for Influencing Factors on Surface Soil Stability of Rock-cutting Soil[J].Journal of Water Resources Architectural Engineering,2012,10(5):22-25. |
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| Authors: | ZHAO Zhi-ming WANG Xi-hua |
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| Affiliation: | 1.College of Geosciences and Environmental Engineering,Southwest Jiaotong University,Chengdu,Sichuan 610031,China;2.School of Resources and Environment,Southwest Petroleum University,Chengdu,Sichuan 610500,China) |
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| Abstract: | In view of the rock-cutting slope of Yuzui Station of Yuhuai Railway,which is protected by greening,the physical and mechanical parameters of the protection layer are obtained by direct shear test.The sensitivity of five influencing factors(slope angle,thickness,unite weight,cohesion,friction angle) of the protection layer’s stability of rock-cutting slope are analyzed based on the parameters,and the sensitivity order of influencing factors is obtained as friction angle,slope angle,unite weight,thickness,cohesion.The results show that the friction angle is the most important factor to help the stability of protection layer. |
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| Keywords: | vegetation slope stability factor sensitivity analysis |
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