在频率域研究深埋圆形隧洞饱和粘弹性土体-衬砌系统耦合简谐振动的动力学特性.根据弹性理论和饱和多孔介质理论，分别得到衬砌和饱和粘弹性土体的稳态动力响应；通过衬砌边界条件以及衬砌与饱和土界面的连续性条件，得到衬砌边界均布简谐载荷作用下饱和土-衬砌系统稳态振动时的位移、应力和孔隙水压力等的解析表达式.考察物理和几何参数对系统动力学特性的影响.研究结果表明：孔隙水的渗透性对系统动力特性影响显著，不透水情形下系统响应远大于透水情形下的响应，且不透水情形下，衬砌厚度对系统响应具有显著影响.然而，土骨架与孔隙水相互作用系数和土体泊松比等对系统响应影响很弱.

The dynamic behavior of harmonic vibrations of saturated viscoelastic soil and lining system with a deeply embedded circular tunnel is investigated in the frequency domain. Based on elasticity and the theory of porous medium, steady-state dynamic responses of the lining and saturated viscoelastic soil are given. Analytical expressions of displacement, stress and pore water pressure for steady-state vibration of the saturated soil and a lining system subject to a uniform harmonic load on the lining boundary are obtained under boundary conditions of the lining and continuity conditions on the interface between the saturated soil and the lining. Influence of the physical and geometric parameters on the dynamic characteristics of the system is examined. It is shown that permeability of pore water has a great influence on the system’s dynamic behavior. The responses to an impermeable system is much greater than those to a permeable system. Furthermore, for an impermeable system, the lining’s thickness has a remarkable influence on the system behavior, while influences of the interaction coefficient between soil skeleton and pore water, and the soil’s Poisson ratio on the system behavior are unnoticeable.