中文摘要：

试验性的研究被执行了在不同水动力学条件的情况中在海十字路口桥墩的一个平板上调查垂直力量。Theexperimental 学习以常规波浪和不规则的波浪被划分成二部分。Thehydrodynamic 负担作用于平板被六部件平衡测量，平板的底部上的压力被压力变换器测量。当影响类型和 bouyant 高举，结果，垂直力量模式能被考虑类型。为这二个不同模式，垂直水动力学力量的时间系列被测量并且分析。波浪高度的影响，波浪时期，垂直力量上的平板的清理高度详细被讨论。

英文摘要：

An experimental study has been carried out to investigate the vertical force on a slab of sea-crossing bridge piers in the cases of different hydrodynamic conditions. The experimental study is divided into two parts in terms of regular waves and irregular waves. The hydrodynamic loads acting on the slab are measured by a six component balance and pressures on the bottom of the slab are measured by pressure transducers. It turns out that the vertical lbrce patterns can be considered as impact type and bouyant uplili type. For these two different patterns, time series of the vertical hydrodynamic forcc are measured and analyzed. The influences of wave height, wave period, clearance height of slab on the vertical force arc discussed in detail.