弧面型防波堤的波浪力简化计算方法研究

Research on Simplified Calculation Method of Wave Force Acting on Arc-Shaped Breakwater

弧面型防波堤是一种新型防波堤,国内外尚无波浪力理论计算公式,需借鉴类似堤型的半圆型防波堤的波浪力研究成果。为此,进行了弧面型防波堤与半圆型防波堤波浪力结构断面试验,本文根据两种堤型水力特性分析和对比试验研究,提出以半圆型防波堤波浪力乘以一个修正系数,可作为弧面型防波堤波浪力的简化计算方法,对弧面型防波堤稳定性的验算和对波浪力随周期变化规律的检验,以验证修正系数的可行性。修正后的弧面型防波堤波浪力简化计算方法可作为工程应用的参考。

As a new type of breakwater,no theoretical formula for calculating wave force is available for arc-shaped breakwater.so the research data on the wave force acting on semi-circular breakwater are used for reference.Based on the tests of wave forces acting on the cross sections of arc-shaped and semi-circular breakwater,by analyzing the hydraulic characteristic sand comparing the testing results,a simplified method is proposed,that is,the wave force on arc-shaped breakwater is equal to that on semi-circular breakwater multiplied by a correction factor.The feasibility of the correction coefficient is corrected by checking the stability of arc-shaped breakwater and the law of wave force varying with period change,which will serve as a reference for engineering practice.