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 )根據kuster散射波理論,計算了飽和度大于85的準飽和土體的彈性波速,其結果與試驗非常吻合;但是,通常所用的等效孔隙流體壓縮系數(shù)的方法所計算的結果與實驗結果差別很大,對此,筆者給予了一定的解釋。