This study restated proper relations among these three stresses at any locations in porous medium,and called the corresponding mathematical expressions the stress-based equations of porous medium.

• 基于对多孔介质双重有效应力的研究,重申了多孔介质中任一点处,上述三种应力之间的正确关系,并把相应的数学表达称为多孔介质的应力关系方程。