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Stability of berm breakwater with reduced armor stone weight

机译：护甲石重量减少的护堤防波堤的稳定性

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摘要

The basic principle involved in the design of S-shaped breakwater is the provision of a wide berm at or around the water level with smaller size armor stones than that used in conventional design, which are allowed to reshape till an equilibrium slope is achieved. An attempt is made to assess the influence of wave height, wave period, and berm width on the stability of S-shaped breakwater with reduced (30% reduction in armor stone weight) armor unit weight. From the investigation, it is found that the berm breakwater with 30% reduced armor weight would be stable for the design wave height if the berm width is 60 cm and wave period 1.2 s. For higher wave periods studied, zero damage wave height reduces by 20-40% of the design wave height. Wave period has large influence on the stability of berm breakwaters. The runup increases with decrease in weight up to W_o/W = 0.9.
机译：S形防波堤设计的基本原理是在水位处或水位附近提供宽大的护堤，其护甲石的尺寸要小于常规设计中使用的护甲石，并允许其重塑直至达到平衡斜率。试图评估波浪高度，波浪周期和护堤宽度对S形防波堤稳定性的影响，其装甲单位重量减少（装甲重量减少30％）。通过调查发现，如果护堤宽度为60 cm，波浪周期为1.2 s，则护甲重量降低30％的护堤防波堤对于设计波浪高度将是稳定的。对于研究的较高波周期，零损伤波高降低了设计波高的20-40％。波浪期对护堤防波堤的稳定性影响很大。随着重量的减小，毛坯增加，直至W_o / W = 0.9。

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