Author(s): Maimi Yanagisawa; Yasuo Nihei; Shinpei Yamaguchi; Shohei Kawabe; Fumio Tatsuoka
Linked Author(s):
Keywords: Sand dune; Tsunami; Geogrid; Overflow; Seawall
Abstract: To evaluate the function of sand dunes as a tsunami barrier and the effects on reinforcing sand dunewith a geogrid and/or covering the slopes and crest of a sand dunewith concrete panels on the strength against anover-flowing tsunami, a series of model tests were performed in a laboratory wave channel. The results of these tests indicate that, first, a sand dune can function as a tsunami barrier and, second, to ensure a sand dune can survive a strong tsunami while functioning as a tsunami barrier, it is very effective to cover the crest and down-reach slope of the sand dunewith concrete panels connected to the geogrid layers.
Year: 2013