跨海大桥基础单桩模型水动力试验研究

Research on Single Pile Model Hydrodynamic Experiments of Cross-Sea Bridge Foundation

主要介绍跨海大桥50m,60m 和70m 三种跨径桥梁的基础单桩模型水动力试验研究的目的、方法和结论。通过较为系统深入的水动力模型试验,发现了水动力作用下单桩模型受力随不同水位、不同角度和不同波高的影响规律;找到了单桩模型的波流力力谱与波浪频谱之间的频率分布特性以及相位关系。

Objective, approach and conclusion of single pile foundation hydrodynamic experiments were introduced for bridge with span of 50 m,60 m and 70 m. Intensive and extensive hydrodynamic experiments were carried out and it was discovered that the mechanical behavior of single pile foundation is affected by water levels, flow direction and wave height. Also the distribution characteristics and phase relation between wave flow force spectrum and wave spectrum were deduced.