Journal of the Japan Society of Erosion Control Engineering, Vol.59,No.2,2006

Study on bank collapses in Fukui Storm in 2004

Iwao Miyoshi Yusuke Sakai Kazuki Matsumura

Abstract

Fukui storm which arose in July 2004, brought large damage in each place of Fukui prefecture, and killed 5 people. Kuratsukuri district of Miyama town has been also suffered from the disaster due to the sediment discharge from 3 rivers that confluent this district. In one of them named as Kuratsukuri River, the sediment discharge was trapped with Sabo and erosion control dams completely in the upper reaches. So the cause of disaster in Kuratsukuri River was thought as the bank collapse occurred in the down reaches near the town. It was recognized that the bank collapses occurred in regardless of land form and vegetation and the whole sediment volume yielded in down reaches were same as the upper reaches, from the field survey

Key words: bank collapse, debris flow, sediment‐related disaster

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