| 夏唐代,颜可珍,孙鸣宇.饱和土层中瑞利波的传播特性[J].水利学报,2004,35(11):0081-0084 |
| 饱和土层中瑞利波的传播特性 |
| Propagation of Rayleigh wave in saturated soil layer |
| 投稿时间：2003-07-23 |
| DOI： |
| 中文关键词: 饱和土 瑞利波 特征方程 弥散性 |
| 英文关键词: saturated soil layer Rayleigh wave propagation secular equations dispersion |
| 基金项目: |
|
| 摘要点击次数: 1842 |
| 全文下载次数: 139 |
| 中文摘要: |
| 本文基于Biot提出的饱和多孔介质的弹性波动方程，导出饱和土层中瑞利波弥散特征方程，并由此分析了瑞利波的弥散特性和位移分布规律。结果表明，饱和土(有渗流)的瑞利波弥散曲线与饱和封闭系统(无渗流)相差很小，可利用饱和封闭系统情况来研究和分析饱和土中瑞利波特征以及现场所测瑞利波弥散曲线。饱和土层中瑞利波的有效传播深度约为1.5倍波长。 |
| 英文摘要: |
| Based on the Biot's theory of wave propagation in porous fluid-saturated media, the secular equations of Rayleigh wave movement in saturated soil layer are derived. The characteristic of the first mode of wave is analyzed. It shows that the difference between dispersion curve of Rayleigh wave for saturated soil (permeable) and saturated closed soil (impermeable) is small. So that the theory for saturated closed soil can be used to analyze the characteristics of Rayleigh wave and the dispersion curve of Rayleigh wave in saturated soil measured in situ. The effective propagation depth of the first mode of Rayleigh wave is about one and half wavelength. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |