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J. Ocean Eng. Technol. 2002;16(4):7-12.    

Scouring Characteristics at the Toe of the Rubble Mound Breakwater
사석방파제 toe부에서의 세굴특성에 관한 연구
윤한삼,남인식,류청로
(주)한국연안개발기술,한국컨테이너부두공단,부경대학교 해양공학과
Copyright © 2002 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Key Words: Scouring, Deposition, Rubble Mound Breakwater
핵심용어: 세굴, 퇴적, 사석방파제
Abstract
This study is aimed to find the scouring mechanism at the toe of rubble mound structures. To investigate the characteristics of scouring in front of the structure, experiments were performed with regular waves in a 2-D flume. The results of this study are as follows. 1) It can be said the characteristics of incident wave causes rolling and sliding of armour block. The difference of wave pressure on the slope, internal flow as well as settlement of armour block due to the weight cause scouring. 2) It is observed that scouring depth at the toe increased when wave height or period increased. The location of ultimate scouring and deposition depth moved seaward when wave period increased. 3) The failure of rubble mound structure was caused by waves or scouring. Failure by erosion increased with high waves and long waves. 4) Using surf-similarity parameter including characteristics of incident waves and structure, scouring and deposition pattern were found and their limit was formulated.


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