【作者】 谢世楞； 刘颖； 孙毓华； 吕江华；

【Author】 XIE SHILENG LIU YING (The First Design Institute of Navigation Engrg.) SUN YUHUA LU JIANGHUA (The Planning and Design Institute for Water Transportation)

【机构】 交通部第一航务工程勘察设计院； 交通部水运规划设计院；

【摘要】 在本文中,利用不规则波的模型试验结果和海浪的实测资料,对三种基本类型的港口和海岸工程建筑物,即大直径墩柱、小直径桩柱和直立墙上波浪力的概率分布型式,以及波浪力计算式的不定性系数进行了统计分析．分析表明,当大直径墩柱采用波浪绕射理论公式、小直径桩柱采用莫里逊公式、直立墙采用合田良实公式计算时,计算式的不定性系数符合对数——正态颁布;波浪力的短期分布大致符合格鲁夫新基分布;而波浪力的长期分布符合对数——正态和极值Ⅰ型分布．本文的结果,可用于有关的港口和海岸工程建筑物的可靠度分析．更多还原

【Abstract】 Based on the results of irregular wave tests and the wave observation data,the probability distribution types as well as the uncertainty of the calculation formulae of wave forceaacting on three main types of harbour and coastal structures,which are large diameter dolphin,small diameter pile and vertical wall,are discussed in the present paper.Analysis indicates when formula based on wave diffraction theory is used for large diameter cylinder, Norison formuia for small diameter pile and Gods formula for vertical wall,the coefficients of uncertainty follow log-normal distribution,the short-term distribution of wave forces follow Grouhovski distribution approximately,and the long-term ditrlbution of wave forces follow Log-normal and Gumbel distibution.The results of the paper can be adopted for the reliability analysis of harbour and coastal structures.更多还原