中文摘要：

这篇论文在水动力学负担下面在沉没漂浮的隧道(SFT ) 的动态回答上调查结构参数的效果。结构参数包括快活重量比率(BWR ) ，电缆线系统的僵硬系数，隧道网络快活和隧道长度。首先，在与 SFT 的动态回答的关系的结构的阻尼的重要性被表明，结构的潮湿的效果的机制被讨论。此后，基本结构参数在水动力学负担下面通过 SFT 动态回答的分析被调查。结果显示 SFT 的 BWR 是一个关键结构参数。当 BWR 是 1.2 时，在在水动力学负担下面的 SFT 的垂直动态反应有一个显著趋势变化。结果也显示到电报僵硬系数的隧道网快活的比率不是在水动力学负担下面影响 SFT 的动态回答的一个典型因素。

英文摘要：

This paper investigates the effects of structure parameters on dynamic responses of submerged floating tunnel （SFT） under hydrodynamic loads. The structure parameters includes buoyancy-weight ratio （BWR）, stiffness coefficients of the cable systems, tunnel net buoyancy and tunnel length. First, the importance of structural damp in relation to the dynamic responses of SPT is demonstrated and the mechanism of structural damp effect is discussed. Thereafter, the fundamental structure parameters are investigated through the analysis of SFT dynamic responses under hydrodynamic loads. The results indicate that the BWR of SFT is a key structure parameter. When BWR is 1.2, there is a remarkable trend change in the vertical dynamic response of SFT under hydrodynamic loads. The results also indicate that the ratio of the tunnel net buoyancy to the cable stiffness coefficient is not a characteristic factor affecting the dynamic responses of SFT under hydrodynamic loads.