In this paper, domestic and abroad research progresses and related calculation formulae of the mean overtopping discharge are summarized. Through integral physical model experiments, the relation between the wave dire...In this paper, domestic and abroad research progresses and related calculation formulae of the mean overtopping discharge are summarized. Through integral physical model experiments, the relation between the wave direction and the overtopping discharge on the top of the sloping dike is focused on and put into analysis and discussion; and a modified formula for mean overtopping discharges under oblique irregular waves is proposed. The study shows that the mean overtopping discharge generally goes down as the relative wave obliquity fl increases for a fixed measurement point and the mean overtopping discharge generally increases as the wave steepness H/L decreases (the cycle increases) for a fixed relative wave obliquity.展开更多
An empirical formula for estimating the overtopping discharge of wind-waves on a smooth-impermeable-simple slope dyke is derived through model tests in this paper, it can be adopted by related design departments in th...An empirical formula for estimating the overtopping discharge of wind-waves on a smooth-impermeable-simple slope dyke is derived through model tests in this paper, it can be adopted by related design departments in the determination of the crest elevation of the dyke.展开更多
用国家堤防设计规范和欧美最广泛认可的van der Meer提出的斜坡复式海堤波浪爬高计算方法,对一系列工程实例计算对比之后,分析了有关影响因素,提出了对后者的修改和使用意见;对用van der Meer法计算的越浪量,与有关实验结果作定性对比分...用国家堤防设计规范和欧美最广泛认可的van der Meer提出的斜坡复式海堤波浪爬高计算方法,对一系列工程实例计算对比之后,分析了有关影响因素,提出了对后者的修改和使用意见;对用van der Meer法计算的越浪量,与有关实验结果作定性对比分析,提出斜坡复式海堤越浪量计算中存在的问题和对有关公式的修改建议。相关分析表明,从海堤越浪安全和工程建设的角度看,现行规范规定的允许越浪或不允许越浪设计准则不够科学,应根据结构防护和功能要求直接以控制越浪量为设计准则。展开更多
基金supported by the National Key Research and Development Program of China(Grant Nos.2016YFC1402000 and 2016YFC1402002)the Special Funds Targeting at Industrial Scientific Researches for Public Welfare of Ministry of Water Resources(MWR)(Grant No.201401004)+3 种基金the National Natural Science Foundation of China(Grant No.51579156)the Major Project of Nanjing Hydraulic Research Institute Funds(Grant No.Y214009)the Jiangsu Province Hydraulic Science and Technology Projects(Grant No.2012001-8)the Jiangsu Province Hydraulic Science and Technology Projects(Grant No.2014048)
文摘In this paper, domestic and abroad research progresses and related calculation formulae of the mean overtopping discharge are summarized. Through integral physical model experiments, the relation between the wave direction and the overtopping discharge on the top of the sloping dike is focused on and put into analysis and discussion; and a modified formula for mean overtopping discharges under oblique irregular waves is proposed. The study shows that the mean overtopping discharge generally goes down as the relative wave obliquity fl increases for a fixed measurement point and the mean overtopping discharge generally increases as the wave steepness H/L decreases (the cycle increases) for a fixed relative wave obliquity.
文摘An empirical formula for estimating the overtopping discharge of wind-waves on a smooth-impermeable-simple slope dyke is derived through model tests in this paper, it can be adopted by related design departments in the determination of the crest elevation of the dyke.
文摘用国家堤防设计规范和欧美最广泛认可的van der Meer提出的斜坡复式海堤波浪爬高计算方法,对一系列工程实例计算对比之后,分析了有关影响因素,提出了对后者的修改和使用意见;对用van der Meer法计算的越浪量,与有关实验结果作定性对比分析,提出斜坡复式海堤越浪量计算中存在的问题和对有关公式的修改建议。相关分析表明,从海堤越浪安全和工程建设的角度看,现行规范规定的允许越浪或不允许越浪设计准则不够科学,应根据结构防护和功能要求直接以控制越浪量为设计准则。