| 软夹层参数对边坡动力特性的影响分析 |
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| 引用本文： | 刘立平,杨实君,李英民.软夹层参数对边坡动力特性的影响分析[J].重庆大学学报(自然科学版),2007,30(5):31-34. |
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| 作者姓名： | 刘立平 杨实君 李英民 |
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| 作者单位： | 重庆大学,土木工程学院,重庆,400030;重庆交通科研设计院,结构动力所,重庆,400067;重庆大学,土木工程学院,重庆,400030 |
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| 基金项目： | 重庆市建设科研计划项目 |
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| 摘 要： | 采用动力有限元分析了软夹层厚度、倾角、埋深等参数对边坡的位移、加速度等动力反应的影响.研究表明:软夹层对边坡动力特性影响显著,在边坡设计和边坡稳定性分析中不能忽视;软夹层越厚滤波和放大效应越明显;软夹层埋深越大,滤波效应越明显;软夹层倾角对滤波效应影响不显著,但对峰值有影响,而逆边坡角的软夹层可以减小边坡表面位移和加速度峰值.研究结论可应用于边坡设计中.
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| 关 键 词： | 地震作用 动力作用 边坡 软夹层 |
| 文章编号： | 1000-582X（2007）05-0031-04 |
| 修稿时间： | 2007-01-15 |
Influence of Soft Soil Layer on Dynamic Characteristic of the Slope |
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| LIU Li-ping,YANG Shi-jun,LI Ying-min.Influence of Soft Soil Layer on Dynamic Characteristic of the Slope[J].Journal of Chongqing University(Natural Science Edition),2007,30(5):31-34. |
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| Authors: | LIU Li-ping YANG Shi-jun LI Ying-min |
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| Institution: | 1. College of Civil Engineering, Chongqing University, Chongqing 400030, China; 2. Structural Dynamics Laboratory, Chongqing Communications Research and Design Institute, Chongqing 400067,China |
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| Abstract: | The dynamic finite element method is used to analyzes the influence on dynamic characteristic of the slope by soft soil layer. The parameters which influencing the earthquake response of the slope, including the depth, the thickness, the obliquity of soft soil layer are analyzed. The influence of soft soil layer is obvious, which must be thought over in the analysis of slope stability. The thicker the soft soil layer is, the more obvious the filter and the amplitude effect is. The deeper the soft soil layer is, the more obvious the filter effect is. The filter effect of the obliquity of the soft soil layer to dynamic time history is not obvious. |
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| Keywords: | earthquake response dynamic action slope soft soil layer |
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