| 严谭路,杨仕教,刘杰,冯磊,刘标珲,黄根满.考虑坡顶交通量影响的路堤边坡失稳敏感性分析[J].南华大学学报(自然科学版),2017,31(4):25~30, 36.[YAN Tan-lu,YANG Shi-jiao,LIU Jie,FENG Lei,LIU Biao-hun,HUANG Gen-man.Analysis on Sensitivity to Instability of Embankment Slope in Consideration of the Top of Slop Traffic Volume[J].Journal of University of South China(Science and Technology),2017,31(4):25~30, 36.] |
| 考虑坡顶交通量影响的路堤边坡失稳敏感性分析 |
| Analysis on Sensitivity to Instability of Embankment Slope in Consideration of the Top of Slop Traffic Volume |
| 投稿时间：2017-11-17 |
| DOI： |
| 中文关键词: 路堤边坡 边坡稳定 影响因子 交通量 敏感性 |
| 英文关键词:embankment slope slope stability influence factor traffic volume sensitivity |
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| 中文摘要: |
| 目前对边坡稳定影响因子敏感性的研究主要是针对边坡的内部因素,在分析路堤边坡稳定时,车辆荷载等外部因素对边坡稳定的影响不容忽视.本文同时考虑内部因素和外部因素,选择边坡土体重度γ、边坡土内摩擦角φ、边坡土粘聚力C、边坡坡度θ及交通量Q作为边坡稳定安全系数敏感性分析的影响因子,5个因子都具有广泛的分布随机性.以金鞭公路某标段路堤边坡为例,制定了5因子5水平的正交试验方案,利用传递系数法分别计算不同工况下的边坡稳定安全系数,再利用SPSS统计分析各影响因子对路堤边坡稳定安全系数的敏感性.研究结果表明:路堤边坡稳定性受内部因素和外部因素共同作用,影响因子敏感性大小依次为:边坡坡度θ>边坡土内摩擦角φ>交通量Q>边坡土粘聚力C>边坡土体重度γ.本研究可为该边坡失稳治理设计提供依据. |
| 英文摘要: |
| At present,the research on the sensitivity of slope stability factor is mainly aimed at the internal factors of slope.In analyzing the stability of embankment slope,external factors such as vehicle load have some influence on slope stability,which can not be ignored.The author selects slope soil weight γ,internal friction angle of slope soil φ,cohesion of slope soil C,slope angle θ and traffic volume Q as factors affecting the sensitivity analysis of slope stability safety according to external and internal factors.Five factors have a wide distribution of randomness.Taking Jinbian Expressway Embankment Slope as an example,the author developed 5 factors and 5 levels of orthogonal test program,using the transfer coefficient method to calculate the slope safety factor under different conditions respectively,and then using SPSS statistical analysis to study the sensitivity of each factor to the stability of embankment slope stability.The results show that embankment slope stability is influenced by the internal factors and external factors together.The sequence of the sensitivity from better to less is:slope angle θ>internal friction angle of slip soil φ>traffic volume Q>cohesion of slope soil C>slope soil weight γ.This study can provide the basis for the design of slope instability management. |
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