Stability of Low Crested and Submerged Breakwaters with Single Layer Armouring

作     者：Markus Muttray Erik ten Oever Bas Reedijk 

作者机构：Delta Marine Consultants Gouda 2800 AG the Netherlands 

出 版 物：《Journal of Shipping and Ocean Engineering》 (船舶与海洋工程（英文版）)

年 卷 期：2012年第2卷第3期

页      面：140-152页

学科分类：081505[工学-港口、海岸及近海工程] 08[工学] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 0802[工学-机械工程] 0814[工学-土木工程] 082401[工学-船舶与海洋结构物设计制造] 080201[工学-机械制造及其自动化] 

主　　题：Rubble mound breakwater low crested breakwater armour layer stability single layer armour units Xbloc. 

摘      要：The stability of single layer armour units on low crested and submerged breakwaters has been investigated in 2D hydraulic model tests. Armour unit movements including settlements, rocking and displacements have been determined. The effect of freeboard, packing density and wave steepness on the armour layer stability on crest, front and rear slope has been investigated. Armour units were mostly displaced in the most upper part of the seaward slope and at the seaward side of the crest. Damage on the crest was progressing towards the rear slope. About 40% to 50% larger armour units are required on the seaward slope and crest of low crested structures （as compared to conventional high crested breakwaters）. About 35% larger armour units are required on the rear slope. Larger armour units are not required on submerged breakwaters if the water depth on the crest exceeds 40% of design wave height.