Li Bao-zhong, Cai Yuan-qiang
Department of Civil Engineering, Zhejiang University, Hangzhou 310027, China.
J Zhejiang Univ Sci. 2003 Nov-Dec;4(6):694-701. doi: 10.1631/jzus.2003.0694.
Biot's two-phase theory for fluid-saturated porous media was applied in a study carried out to investigate the influence of water saturation on propagation of elastic wave in transversely isotropic nearly saturated soil. The characteristic equations for wave propagation were derived and solved analytically. The results showed that there are four waves: the first and second quasi-longitudinal waves (QP1 and QP2), the quasi-transverse wave (QSV) and the anti-plane transverse wave (SH). Numerical results are given to illustrate the influence of saturation on the velocity, dispersion and attenuation of the four body waves. Some typical numerical results are discussed and plotted. The results can be meaningful for soil dynamics and earthquake engineering.
比奥的流体饱和多孔介质两相理论被应用于一项研究中，该研究旨在调查水饱和度对横观各向同性近饱和土壤中弹性波传播的影响。推导并解析求解了波传播的特征方程。结果表明存在四种波：第一和第二准纵波（QP1和QP2）、准横波（QSV）和反平面横波（SH）。给出了数值结果以说明饱和度对这四种体波的速度、频散和衰减的影响。讨论并绘制了一些典型的数值结果。这些结果对土动力学和地震工程可能具有重要意义。
