固结、渗流和沉积控制方程研究

A study of governing equation for consolidation seepage and sedimentation

本文从两相流体动力学的守恒方程出发，考虑固相、液相的相对运动，推导了可以考虑场的不均匀性和流体压缩性的统一形式的控制方程，并对方程所基于的物理概念和相互联系进行了必要的分析。通过对方程适当形式的表达，可导出用于大、小变形固结、渗流和沉积的简化方程，显示了在不同领域的三个理论存在一定的统一性。方程推导过程并未对本构关系加以限制，适用范围较广。依据实际问题的要求，作了不同形式的简化。

In this paper, based on two phase fluid dynamics theory and considered the relative motion of both phase, general equations are obtained with regard to consolidation, seepage and sedimentation in a suspension.The physics sense of the element in the equations and the connection of the three theories in different fields are studied, which will be shown to be equivalent.Moreover, considered uneven field and compressible liquid, the equations can be applied to large, small deformatim consolidation, seepage of saturated soil and sedimentation. According to practical interest,the equations are simplified in different forms.