饱水孔隙介质的质量耦合波动问题

本文按照混合物理论严格地推导出了饱和孔隙介质的一般波传播理论.该理论的重要性在于包含了质量耦合作用,并为研究该问题提供了理性基础和实用方程.本文对所得方程中的系数的物理意义和热力学限制进行了讨论.通过比较认为本文的理论和Biot古典理论基本上一致.本文还对完全透水、完全不透水和具有刚性固体骨架的介质的无边界条件下的波传播问题进行了研究,得到了一些有意义的结论.     

波浪作用下砂质海底的瞬态应力

利用应力函数与超静孔压联立求解的方法直接得到了波浪作用下有限厚度砂质海底中瞬态应力的精确解,考虑了土骨架的弹性、流体压缩性和渗流各向异性.文中还讨论了特殊情形下的应力解,并证明前人有关本课题的若干解答均可作为本文解的特例导出. ...     

WAVE PROPAGATION WITH MASS-COUPLING EFFECT IN FLUID-SATURATED POROUS MEDIA

This article utilizes the theory of mixtures to formulate a general theory of wavepropagation with mass-coupling effect in fluid-saturated porous media.An attempt is madeto discuss the physical interpretation and the thermodynamic restriction of the coefficientsappearing in the equations obtained.By the comparison it is shown that Biot’s classicaltheory and the present one are essentially consistent.Also,wave velocities in some specialcases are calculated,from which it is concluded that mass-coupling and permeability ofmedia greatly affect wave propagation behavior.     

Wave propagation with mass-coupling effect in fluid-saturated porous media

This article utilizes the theory of mixtures to formulate a general theory of wave propagation with mass-coupling effect in fluid-saturated porous media. An attempt is made to discuss the physical interpretation and the thermodynamic restriction of the coefficients appearing in the equations obtained. By the comparison it is shown that Biot's classical theory and the present one are essentially consistent. Also, wave velocities in some special cases are calculated, from which it is concluded that mass-coupling and permeability of media greatly affect wave propagation behavior.