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按照Ｂｉｏｔ建立三维固结方程的基本思路，考虑到介质的渗透系数不是常量，而是孔隙率的函数，建立起多孔介质流－固耦合渗流的基本方程；对一维稳定渗流时的数学模型进行理论解答，探讨分析了耦合作用下多孔介质内流体压力的分布规律；对耦合作用下流体在多孔介质内的渗流规律提出了一点新的认识。
According to Biot’s basic idea of establishing three-dimensional consolidation equation, the basic equation of fluid-solid coupling seepage in porous media is established considering that the permeability coefficient of media is not a constant but a function of porosity. The mathematical model of one- Theoretical solution, the paper analyzes the distribution of fluid pressure in porous media under the coupling action and puts forward a little new understanding of fluid percolation law in porous media under coupling action.