Journal of the Japan Society of Erosion Control Engineering, Vol.55,No.6,p.59-67,2003

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Debris disasters in the eastern region of Korea caused by the 15th typhoon, Rusa in 2002

Masakazu SUZUKI, Yutaka GONDA, Wataru SAKURAI, Hideaki KOBAYASHI, Toshihiro HASHINOKI

Abstract

The 15th typhoon named Rusa hit Korea during in August 31 to September 1. It caused serious damages particularly in the eastern region where the heavy rainfall concentrated, triggered debris flows, slope collapses and flood water inundations in major rivers. Many surface failures and debris flows occurred especially on the burned slope by forest fire, in addition, tremendous volume of sediment flowed into rivers and caused dangerous aggradations. Accordingly, it is imperative to control the discharged sediment by installing sabo dams.

Key words:sediment disasters by typhoon, debris flow, surface failure