災害報告
2009年7月21日山口県防府市での土砂災害緊急調査報告
2009 年 62 巻 3 号 p. 62-73
詳細
2009 年 62 巻 3 号 p. 62-73
The deluge on July 21 2009 in Yamaguchi, with the area's exceptionally heavy rainfall of 297 mm, maximum intensity 72.5 mm/hr and countless traces of debris flow, resulted in tremendous damage and high number of causalities in the area. Hence, urgent field investigation and reconnaissance were conducted by the society to overview this sediment related disaster. Here, the various results and the information obtained through this investigation were reported, mentioning the damages, the meteorological condition featuring precipitation, geologic-geomorphologic features and hydraulic characteristics of the debris flows, vegetation effects, and the efficiency of Sabo facilities against the sediment runoff in this disaster.
