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APPLICABILITY OF SUB-SAND SYSTEM TO BEACH EROSION CONTROL
Author(s) -
Yoshimasa Kawata,
Yoshito Tsuchiya
Publication year - 1986
Publication title -
proceedings of conference on coastal engineering/proceedings of ... conference on coastal engineering
Language(s) - English
Resource type - Journals
eISSN - 2156-1028
pISSN - 0589-087X
DOI - 10.9753/icce.v20.92
Subject(s) - berm , intertidal zone , beach morphodynamics , geology , accretion (finance) , sediment , erosion , beach nourishment , submarine pipeline , coastal erosion , beach ridge , geomorphology , dredging , shore , geotechnical engineering , sediment transport , hydrology (agriculture) , oceanography , physics , astrophysics
We performed experiments in the laboratory under controlled conditions in order to determine the applicability of a sub-sand filter system to the beach erosion control work. The filter system is used to control a flow condition at the sediment-fluid boundary. In the foreshore, it increases the inflowing velocity into the beach and thus results in increasing the threshold of beach sediment movement. The sub-sand filter system accelerates accretion of much beach sediment in the foreshore through the development of a berm under normal wave conditions. When wave conditions change from normal to stormy , it is also applicable to stabilize the beach profile, and thus decrease loss of beach sediment from the foreshore to the offshore.

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