SEISMIC-WAVE PROPAGATION IN A VISCOELASTIC POROUS SOLID SATURATED BY VISCOUS-LIQUID

被引：37

作者：

SHARMA, MD

GOGNA, ML

机构：

[1] Department of Mathematics, Kurukshetra University, Kurukshetra

来源：

PURE AND APPLIED GEOPHYSICS | 1991年 / 135卷 / 03期

关键词：

VISCOELASTIC POROUS SOLID; DISSIPATIVE; FREQUENCY; REFLECTION COEFFICIENTS; ATTENUATION; SATURATED; VISCOUS; POISEUILLE;

D O I：

10.1007/BF00879471

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

A general solution is deduced of the differential equations describing the propagation of elastic waves in a dissipative liquid-filled viscoelastic porous solid. The velocities of three existing waves have been expressed in convenient form using the moduli of the solid phase and by introducing the frequency-dependent equivalent mass densities. The solution is then used to examine some of the phenomena which arise when each of the three-body waves, in turn, are incident on a traction-free plane boundary. Analytic expressions for the reflection coefficients are obtained. Numerical calculations have been made, for a particular model, in case of incident P1 wave. Effect of viscoelasticity and viscosity on the reflection coefficients has also been exhibited.

引用

页码：383 / 400

页数：18

共 11 条

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