矩形浮式防波堤的改进试验研究

EXPERIMENT STUDY ON THE RECTANGULAR BREAKWATER IMPROVED

本文在前一阶段几种浮式防波堤水力学特性试验研究的基础上,吸取国内外现有浮堤研制经验,又提出了几种经过改进的矩形浮式防波堤进行了规则波试验,测取了堤前与堤后波高,观测了浮堤的运动,并测取了浮堤的锚链力。试验比较了矩形浮堤前壁封口与开口,外部上设胸墙,下设挡浪板或瓦楞底板,浮堤内部用左右对称的边浮箱,该箱体采用矩形或尖劈形,试验还比较了不同于弦高度与吃水,使浮堤平放或前倾,浮堤采取错系或用立柱阻挡,分别研究了这些浮堤的水力特性,从中选出浮堤的最佳结构形式。

This paper, based on the experiences of the existing floating treakwaters both at home and abroad, and on the basis of hydraulic characteristic researches about several kinds of floating breakwaters in the past, proposes ten types of improved floating breakwaters for experiment with regular wave. It measures the height of wave before and behind the breakwaters, observes the movements of floating breakwaters and measures the chain force of the floating. breakwaters. In the experiment, the opened and closed holes in the front side of the floating breakwater is compared the wave screen upon the outside section is added, and the apron or wive shape plate at the bottom of breakwater is set .Inside the floating breakwater,we use the floating boxes which are symmetrical by right and left. And the boxes are in the form of rectangle Or wedge. The experiment also compares the heights of different kinds of freeboards and drafts.-The breakwater is made on the same level or leaned forword.The floating breakwaters use the anchor system, or are blocked with erect pole. The paper studies the hydraulic characteristics of the floating breakwaters individually and selects the best structure style from them.