基于三相多孔介质波动方程， 充分考虑各相材料间的惯性和粘性耦合效应以及毛细压力作用，通过 理论分析和模型试验对非饱和土．桩动力相互作用问题，非饱和土弹 性半空间中埋置振源时的基本解以及桩的长期荷载循环特性进行了研究(Three-phase porous media based on wave equation, considering the material between the inertial and viscous coupling effect and capillary pressure, through theoretical analysis and model test on unsaturated soil. Pile dynamic interaction problem, unsaturated soil elastic half space embedded in the base solution and the source of long-term load cycle characteristics of pile study)