【作者】 王颖；

【导师】 薛雷平；

【作者基本信息】 上海交通大学 ， 港口、海岸及近海工程， 2007， 硕士

【摘要】 斜坡堤是在防波堤、海堤、护岸等防浪建筑物中采用较广的一种形式,为了减小堤身断面的土石方量而又不降低抗御波浪爬高的标准,在堤顶常设置防浪胸墙。如何设置防浪墙,既可保证其稳定要求,又能满足其容许越浪量,就是一个亟待解决的问题。对于波浪力的测量前人做了很多研究,但多数集中于简化后的直立式防浪墙,当防浪墙迎浪面采用弧形结构且波浪临近或者已经发生破碎时,波浪对防浪墙尤其是弧形结构部分的冲击更为猛烈,作用机制更加复杂,需要用模型试验来解决此类问题。以前的试验多数通过在迎浪面上布置测点,测得压强积分后获得波浪总力,对于直接测量防浪墙波浪力,前人研究很少。本文通过物理模型试验的方法,通过三分力天平对常用的直立式、不同墙底高程和墙高组合下的圆弧式防浪墙进行物理模型试验,直接测量作用其上的波浪力,分析不同形式下防浪墙的整体稳定性,讨论防浪墙形式引起的越浪量和受力的关系。根据试验数据和对试验结果的分析,相同波要素和水位下,弧形防浪墙的波浪力大于或者接近于直立式防浪墙,防浪效果优于直立式防浪墙;相同墙顶高程条件下,加大弧形半径和降低防浪墙底高程有利于减更多还原

【Abstract】 In the design of breakwaters, seawalls, revetments and other constructions to protect overtopping, slope profile dikes are always used. In order to reduce the capacity of sand and stone without influencing overtopping, crown wall is usually set on the dike. How to design wave screen to ensure the stabilization and satisfy the permissive overtopping is an important problem.There are many researches relevant to this, but because of the complexity of the subject, physical model experiments are usually focused on vertical wall. When the head-on profile of wave screen is arc, wave that is nearly breaking or broken hits on the arc structure especially violently. The mechanism is more complex. Many points were set to measure the pressure and integral to get the force.In this paper, Through a three-component balance, wave force at waveward side , bottom of vertical and arc wave screens , which have更多还原