| 李保忠,蔡袁强.饱和度对横观各向同性准饱和多孔介质中弹性波传播的影响[J].水利学报,2003,34(9):0094-0101 |
| 饱和度对横观各向同性准饱和多孔介质中弹性波传播的影响 |
| Influence of water saturation on elastic wave propagation in transversely isotropic quasi saturated porous media |
| |
| DOI： |
| 中文关键词: 饱和度 横观各向同性 准饱和 频散 衰减 |
| 英文关键词: saturation transversely isotropic quasi-saturated propagation of elastic wave dispersion attenuation |
| 基金项目: |
|
| 摘要点击次数: 2454 |
| 全文下载次数: 154 |
| 中文摘要: |
| 基于Biot两相孔隙介质理论，研究了饱和度对横观各向同性准饱和介质中弹性波传播的影响。横观各向同性双相多孔介质中存在4种不同波速的平面体波：第一准纵波(QP1)、第二准纵波(QP2)、准横波(QSV)和反平面横波(SH)，文中分别研究了不同饱和度下这4种波的波速、衰减和频散，结果显示，饱和度的变化对弹性波的传播有显著影响。文中把数值计算结果用图表形式列出，并试图从理论上对结果进行深入的探讨，得到一些有益的结论。 |
| 英文摘要: |
| Based on the Biot's two-phase theory for fluid-saturated porous media, the study on influence of water saturation on elastic wave propagation in transversely isotropic quasi saturated soil is carried out. The characteristic equations for wave propagation are deduced and solved analytically. The result shows that four kinds of wave exist: first and second quasi longitudinal waves(QP1 and QP2),the quasi-transverse wave(QSV) and the anti-plane transverse wave(SH).Numerical result is given to illustrate the influence of saturation on velocity, dispesrsion and attenuation of these four waves. The results of numerical calculation are plotted and further investigated. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |