2012.4-2013.3 Yearbook of NILIM
Research Summary


River Department

Reference Number Y120302
Title Research on the river improvement and management in consideration of the characteristics of river changes
Start-End Date 2010.4-2013.3
Division River Division
Author Head, Atsushi HATTORI
Senior Researcher, Masaki FUKUSHIMA
Researcher, Yoshinori TAKEUCHI
Summary In natural-levee reaches, we found the substantial mechanism of riparian deposits of fine sediment originating from wash load material to cause forming high-water channel and channel narrowing frequently. And we developed practical methods of estimating the longitudinal profile of flood flow capacity. With these methods, we proposed the concept and a design method of gmargin for flood flow capacityh.