Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
Online ISSN : 1883-8944
Print ISSN : 1884-2399
ISSN-L : 1883-8944
Numerical Analysis on Cave-Formation Process behind Seawall by Particle Method
Hitoshi GOTOHHiroyuki IKARITomoaki KOMAGUCHIToyoaki MISHIMAHidefumi YODOSHI
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2010 Volume 66 Issue 1 Pages 821-825

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Abstract

A suction of backfill sand behind a seawall causes damages of seawall, such as local subsidence of seawall or cave-in of backfill sand. Some field observations show that caves were formed due to suction through a corroded hole found in a sheet pile under the seawall. Therefore, in this study, a numerical simulation on such a cave-formation process is carried out by a particle method. The simulation consists of two stages: The one is a simulation of a suction process of sand under the seawall, and the other is an erosion process of backfill sand. The cave reproduced by the simulation showed good agreement with the observed one.

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© 2010 Japan Society of Civil Engineers
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