The fact that wave velocity in quasi - saturated soil is equal to that of fully saturated soil could not be calculated by effective fluid compressibility or explained by unwell - distributed saturation . we account for this in a new reasonable way which was based on kuster scattering effect analysis ( 8 )根据kuster散射波理论，计算了饱和度大于85的准饱和土体的弹性波速，其结果与试验非常吻合；但是，通常所用的等效孔隙流体压缩系数的方法所计算的结果与实验结果差别很大，对此，笔者给予了一定的解释。
