半透空沉箱式防波堤的消波性能试验研究

摘要

This paper introduces a new type of breakwater,i.e.semi-permeable caisson breakwater.By the hydraulic model test conducted in a glass wave tank,we measure the wave characteristic parameters in front of and at the back of the semi-permeable caisson breakwater at various wave heights and periods of the wave action.The objective of this project is to investigate the reflectivity of semi-permeable caisson breakwater under different wave conditions,and analyze the relationship between the period of the wave and wave steepness.Furthermore,we probe into the wave dissipation principle and performance of the breakwater.According to the test results,we select the the best combination of permeable rate and slope gradient,which provide a new way of thinking for the conceptual design and planning of wave protection and wave dissipation in the open port.%提出一种新型防波堤——半透空沉箱式防波堤.在玻璃水槽中进行系列水工模型试验,量测在不同波高、周期波浪作用下,半透空沉箱防波堤前后的波浪特征参数,分析半透空沉箱防波堤对不同特征波浪的反射率,波浪周期与波浪尖锐度之关系.探讨该防波堤结构的消波原理与性能,根据试验分析结果,选出最优的透空率及内置斜坡坡度,试验结论可为开敞式港区码头的防波消波方案设计与规划提供一种新思路.