摘要
通过物理模型试验,分析作用在削角沉箱防波堤上水平波浪力、斜面竖向力以及堤底浮托力时程曲线。通过比较冲击波浪力的作用时间范围与峰值,得到防波堤冲击波浪力与冲击时间随上部胸墙的削角值、波浪周期、堤前水深、基床高度等主要影响因素的变化规律,获得了波浪力的相对作用时间与各影响因素的关系,建议不规则波作用下削角沉箱防波堤上的总水平力峰值和浮托力峰值可以在规则波波浪力峰值的基础上乘以一系数来计算。
Based on physical model test, we analyzed the time-history curves of wave force components, i.e. horizontal wave force, vertical wave force and uplift wave force, acting on chamfered caisson breakwaters. Comparing the acting time ranges and crest values of wave forces in different cases, we obtained the dynamic variation phenomena with respect to main influence factors, such as the chamfered angle, wave period, water depth before breakwater, bedding heights and so on, and got the relationship between wave acting time ranges and influence factors. The modify factor was proposed to calculate the irregular wave forces on chamfered caisson breakwater by that of regular ones.
出处
《中国港湾建设》
2015年第12期16-20,共5页
China Harbour Engineering
基金
国家自然科学基金资助项目(61374184)
关键词
削角沉箱防波堤
物理模型实验
波浪力特性
时程曲线
chamfered caisson breakwater
physical model test
wave force characteristic
time-history curve
