三维不规则波作用下斜坡式建筑物护面块体稳定重量计算

【作者】 朱传华；

【导师】 俞聿修； 柳淑学；

【作者基本信息】 大连理工大学 ， 海岸及近海工程， 2000， 硕士

【摘要】 利用护面块体做防波堤的护面层是世界各地广为采用的方法。以往对斜坡堤护面块体的研究主要集中在单向不规则波的作用下，对于在多向不规则波作用下的研究国内外还很少。 本文将在实验研究的基础上，通过斜坡堤护面块体的整体模型试验，研究国内常用的三种护面块体——扭工字块体、钩连块体、及四脚空心方块在三维不规则波浪作用下及斜向不规则波作用下稳定重量的计算方法。波浪状况：主要做三维不规则波，为了比较，拟做一定数量的规则斜向波和不规则斜向波的实验。波浪主方向与建筑物法线的夹角θ=0°、15°、30°、45°和60°。通过对实验结果的分析明确波浪主方向变化和波浪方向分布对斜坡式建筑物护面块体稳定重量的影响，得出可供设计应用的计算方法。 另外本文还研究了利用波浪中某点三个方向的流速分量来测定方向谱，采用了参量化的方法，进行了数值模拟分析和实测数据的分析。并阐述了此方法的优缺点及使用条件。更多还原

【Abstract】 The use of rubble mound breakwater for slope revetments and breakwater, is adopted everywhere in the world . But most of research of rubble mound breakwater st~bility focus on under oblique -waves .The rubble mound breakwater stability should be investigated under multi-directional wave attack. A few tests of it have been found in the literatures. The main object of this thesis is to investigate the way to calculate the weight of rubble mound breakwater stability . An extensive model test program has been performed to study the effects of wave obliquity and multi- directionality on the rubble mound breakwater stability Three types of amour unit, Dolos., Accropode and Hollow Square were tested .The Hudson formula is still used to determine the armour stability. On the basis on the above ,we can annalyze the breakwater stability are effected by some factors as follow: (1 )Effect of wave pattern (2)Effect of wave angle (3)Effect of directional spreading Directional wave data have been used widely in many engineering. In this article, UVW gage is used to measure directional wave data through the numerical simulation. and experimental data, and a method is proposed to explicate the rule that applies the UVW gage.更多还原