海堤漫顶的可靠度分析

Reliability Analysis of Dyke Overtopping

漫顶失事是海堤坍垮的一个主要失事形式,考虑风暴潮和波浪共同作用引起的漫顶,将风暴潮、风速、潮位、波浪爬高、堤顶高程作为随机变量来处理,建立海堤漫顶的可靠度分析模型,以乐清市某海堤为例,运用积分-MonteCarlo法求解不同重现期海堤漫顶的失效概率,量化了海堤漫顶失事的风险,为设计提供依据.

Overtopping is the main wreck form of dyke collapse. This paper considers that the overtopping was caused by storm tide and wave and regards that storm tide ,wind speed ,tide height.wave high and dyke elevation are random variables in the reliability analysis model of overtopping dyke.Taking some dyke of Yueqing as example,the author uses integral-Monte Carlo law to solve the failure probability of different reappear dyke overtopping and quantifies the risk of dyke accident.It offers the basis for designing.