| 降雨入渗下残积土坡失稳因素的敏感程度分析 |
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| 引用本文： | 阙云,胡昌斌,姚晓琴.降雨入渗下残积土坡失稳因素的敏感程度分析[J].广西大学学报(自然科学版),2009,34(4). |
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| 作者姓名： | 阙云 胡昌斌 姚晓琴 |
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| 作者单位： | 福州大学,土木工程学院,福建,福州,350108 |
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| 基金项目： | 国家自然科学基金资助项目，福建省教育厅科研资助项目，福州大学人才基金资助项目 |
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| 摘 要： | 以福州地区典型残积土为例,基于饱和-非饱和渗流理论,分析了降雨条件、土质物理力学参数、边坡几何形态等11种因素与边坡稳定性的关系,然后采用灰色关联法分析以上因素对于边坡稳定性的敏感程度与权重.结果表明:降雨条件下影响边坡稳定性的影响因素中,土体有效粘聚力和有效内摩擦角对边坡稳定性影响权重最大且相当;降雨强度是诱发残积土边坡失稳的重要因素,建议加强排水功能,减少降雨对边坡整体稳定性的影响;其余因素均对残积土边坡稳定性有较大影响,权重值大小相差不大.
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| 关 键 词： | 降雨入渗 残积土坡 失稳因素 灰色关联法 |
Sensitive degree of instable factors of residual soil slope under rainfall infiltration |
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| QUE Yun,HU Chang-bin,YAO Xiao-qin.Sensitive degree of instable factors of residual soil slope under rainfall infiltration[J].Journal of Guangxi University(Natural Science Edition),2009,34(4). |
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| Authors: | QUE Yun HU Chang-bin YAO Xiao-qin |
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| Institution: | College of Civil Engineering;Fuzhou University;Fuzhou 350108;China |
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| Abstract: | The relationship between eleven factors including precipitation condition,physical and mechanical parameters,geometry shape of slope and stability of residual soil slope are analyzed based on saturated-unsaturated flow theory.Then,the sensitive degree and weight of the instable factors on stability of residual soil slope were studied with grey correlation method.The calculation results show that the weight of effective cohesion and effective angle of internal friction are the largest.The rainfall intensity ... |
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| Keywords: | rainfall infiltration residual soil slope instable factor grey correlation method |
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