2006 Volume 12 Pages 211-216
This paper deals with the influence of construction of revetment works against the deformation of meandering system from normal morphological concept in Kinu-river. Basic channel meandering pattern was formed by jam-up deposit of large stones as a main formation cause of divergence-convergence channel system. By comprehensive field survey including the protected land, channel patterns are clarified to be different in suffering frequency between the reaches of alluvial fan upstream and of loam layer lateral widening due to bank erosion down stream. In the former alluvial fan, double track meandering channels are stable by rigid jam-up deposit of large stones, and there is a little suffering. In the latter, stability of channel is low in bank erosion, longitudinal suffering frequency is high, and therefore many revetment works have been constructed which is one of the main caused deformation of meandering system. In this way, revetment works has close relation with channel pattern and its stability.
