通过非饱和原状黄土湿陷增湿及孔隙压力特性试验得到的黄土增湿过程中的有效应力～应变关系 ,采用三维非线性数值分析方法 ,对黄土地基从天然状态到非饱和增湿湿陷 ,直到饱和湿陷的全过程进行了分析 ,初步得出了黄土湿陷全过程的变形、应力转换等规律 ,是黄土湿陷性研究的一次有益的尝试 ,对评价地基在不同浸水程度下的湿陷变形有重要的意义。 The relationship between effective stress and strain during loess humidification was obtained through experiments on wettability of unsaturated intact loess and pore pressure test. Three-dimensional non-linear numerical analysis method was used to analyze the effect of loess foundation from natural state to unsaturated wet- It is a beneficial attempt to study the collapsibility of loess so as to evaluate the deformation and stress transformation of the entire process of loess collapsibility. Trap deformation has important significance.