In addition , the comparisons of displacements , velocities , solid effective stresses and pressure , obtained respectively by nonlinear model and linear model , display that the differences of the results become more obvious as the increase of the applied load , which demonstrates that the non - linear dependence of permeability on volume strain of solid phase is important as the deformation is not too small , and therefore cannot be ignored 此外，将本论文给出的非线性计算模型得到的位移、速度、固体有效应力和压力等与视渗透率为常数的线性模型的结果比较表明，载荷越大，两种模型的计算结果差异越大。而当载荷很小时，两模型的响应相差很小。说明在变形较大时，渗透率与固体相体积应变的依赖性不容忽视。
