昭和29年度台風による大河内の被災状況

概要

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To investigate the landslide and mud-and-rock flow damages caused by Nos.5,12 and 15 Typhoons of 1954, a on-he-spot survey was made of the \ bar{O}k\ bar{o}chi District, Sh\ bar{i}ba-mura, Miyazaki Prefecture.(Fig.1). The area of this district is 5700 ha, and the geological formation is of the mesozoic system. The relief-grade per l km square has a mean value of 360 m (Fig.2). The damages were mainly due to the rainfall of Typhoon No. 12, which amounted to 1411.1 mm. Phtos 1-7 and Figs.3 and 4 show the traces of mud-and-rock flows. The total volume of debris produced by the landslides shown in Photos 8-13 was about $2-3 \times$10^5$ $m ^3$, and it was deposited on the bed of the ravine as shown in Photos 7 and 14. Fifteen lives and thirty-four houses were lost in the flood.
九州大学の論文