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An Qualitative Analysis on the Beach Deformation of the Sangju Beach with Field Observation  

함계운 (경상대학교 공과대학 토목공학과 공학연구원)
장대정 (경상대학교 공과대학 토목공학과 공학연구원)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.16, no.2, 2004 , pp. 75-82 More about this Journal
Abstract
The changes of sea bottom configuration, which may cause the coastal disasters, have been considered as social problems. It is obvious that the beach deformation is attributable to the sediment transport associated with erosion and acceration. The prediction method and countermeasures for them, however, are not on the level of satisfaction, which indicates that efforts should be made on developing them. In this study, it is found at the groin constructed in Sangju beach on e purpose of beach protection did the aversive function. The reason for this was judged that they accelerated the speed of erosion by increasing the velocity wave-induced current rather than brought storage effect of sediment. Authors found that the storage sediment estimation model by Sonu and Beek(1971) is a useful model at the Sangju beach with the use of topographical survey data from July, 1987 to March, 2003.
Keywords
beach deformation; sediment transport; erosion; beach protection; topographical survey;
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