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http://dx.doi.org/10.12652/Ksce.2010.30.3B.325

A Study on Beach Stabilization by Laying Drainage Layer  

Hur, Dong-Soo (국립경상대학교 해양토목공학과(해양산업연구소))
Lee, Woo-Dong (일본나고야대학 공학연구과 사회기반공학전공)
Jeon, Ho-Sung (국립경상대학교 해양토목공학과)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.30, no.3B, 2010 , pp. 325-335 More about this Journal
Abstract
The aim of this study is to survey the effects of laying drainage layer in sandy beach on beach stabilization. At first, the numerical model developed by Hur and Lee (2007), which is able to consider the flow through a porous medium with inertia, laminar and turbulent resistance terms, i.e. simulate directly WAve Structure Seabed/Sandy beach interaction and can determine the eddy viscosity with LES turbulent model in 3-D wave field (LES-WASS-3D), is validated by comparing with existing experimental data. And then, numerical simulation is carried out to examine the characteristics of wave-sandy beach interaction for a beach with/without drainage layer. From the numerical results, it is shown that mean ground-water level around a foreshore decreases and offshore-ward flow over a seabed reduces in case of a beach with drainage layer. Moreover, the effects of cross profile of drainage layer and incident wave condition on mean ground-water level around a foreshore are also discussed as well the distribution of wave setup around the foreshore.
Keywords
drainage layer; ground-water level; foreshore; LES-WASS-3D(3-D numerical simulation); beach stabilization; swash zone;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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