科伦坡港口城潜堤长度优化的试验研究

摘要

To optimize the length of submerged breakwater in Colombo Port City, by using physical model tests. We compared the wave heights and the wave overtopping while under 3 different length of submerged breakwater, within different water levels and different return period, and the analyzed the results. The test results show that the wave height and overtopping which under the condition of submerged breakwater are both smaller than that with no submerged breakwater. The longer the submerged breakwater, the wave height and wave overtopping of the submerged breakwater cover area are smaller. When the submerged breakwater reaches a length, and the forefront submerged breakwater is located in the area of water depth changes slow, the height reduction coefficient changes little.%为了优化科伦坡港口城潜堤的长度,通过物理模型试验,对3种不同长度的潜堤,在不同设计水位条件,不同重现期波浪作用下的波高分布及越浪量作观测比较,并对结果进行分析研究.试验结果表明,有潜堤条件下的波高值及越浪值较无潜堤条件下小;潜堤越长,受潜堤掩护的区域的波高值及越浪量越小,但是当潜堤达到一定的长度后,潜堤最前端位于水深变化较缓的区域后,波高折减系数变化不大.