GRS防潮堤の耐越流侵食性に関する実験的・理論的検討 [in Japanese] Laboratory Experiment and Theory on Resistance of GRS Tsunami Barrier to Overflow Erosion [in Japanese]
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We recently applied a geosynthetic-reinforced soil (GRS) technology to increase the resistance of tsunami barrier to an overflow erosion. In the present study, we performed a series of model tests in the laboratory to evaluate the resistance of previous and new tsunami barriers on the strength against the over-flowing tsunami. We examined dynamical balance of concrete panels covering on the crest and its outflow conditions. The test results indicated that the GRS seawall has a function of tsunami barrier that has a high resistance to erosion due to tsunami overflow. The length of geogrid layers required to prevent outflow of concrete panels was evaluated quantitatively under various tsunami heights.
- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 69(2), I_986-I_990, 2013
Japan Society of Civil Engineers