Seismic Response of Single Layer Armored Breakwaters

Abstract

Seismic Response of Single Layer Armored Breakwaters In conventional two-layer systems various artificial armor units such as tetrapod, dolos, and tribar have been commonly used. Recently, Accropode and Core-loc (TM) which can be used in a single layer of armoring were recently preferred as armoring. The units for one-layer systems have a high interlocking response under waves and therefore their stability is high. Although response of these units under wave effect is known, their response to seismic action has not so far been investigated. The objective of this study is to investigate the response of breakwaters armored with these units during seismic loadings. An experimental investigation has been carried out for two breakwater models, which consist of a core material and armored with Accropode and Core-loc (TM). Both models were placed on a rigid bed. Deformation of the models, relative settlements and damage on the slopes due to the seismic loading are surveyed and compared with each other.