Abstract
Bottom sounding and sediment sampling were carried out before and after 1975 and 2001 floods. Discharged sediment was estimated by riverbed change calculation. The grain distribution except the fine grain components equal to or less than 80μm almost coincided with the grain distribution of river terrace. Total deposition volumes calculated from the change topography of river-mouth were estimated by the coarse components more than 80μm of discharged sediment. The mean volume for 30 years of the coarse discharged sediment are 6.8*105 m3/year. The volume of river terrace increases rapidly for big flood and decreases slowly for several years.
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Schedule a callMore From: Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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