摘要
对不规则波与流共同作用于群桩的水动力特征进行试验分析。由于群桩效应使得各组成桩的受力很不均匀,讨论群桩中各组成桩及群桩总体折减系数随KC数的变化、受水深及流速的影响。在频域内采用相关函数法进行了谱分析与互谱分析,得到波面谱与波力谱的相关关系,并给出波向力与波面相位差的变化规律。
The hydrodynamic features of irregular wave and current loads jointly acting on group piles are experimentally investigated. The forces and moment on the individual pile are quite not uniform because of the group pile effect. The variations of the general reduction coefficients of the individual pile in the group piles and the group piles themselves with the variations of KC numbers and the influences from water depth and current velocity are discussed. Within the frequency domain, the relevant function methods are used for spectrum analysis and mutual spectrum analysis, the relationship between the wave surface spectrum and wave force spectrum is obtained, and the variation regularities of wave direction force and wave surface phase differences are provided as well.
出处
《世界桥梁》
2004年第B09期32-36,共5页
World Bridges
关键词
波浪力
不规则波
水动力
群桩
斜桩
模型试验
wave force
irregular wave
hydrodynamics
group piles
inclined pile
model test
