2012年8月近畿豪雨による京滋バイパス土石流災害の分析(<特集>近年における斜面災害)

概要

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One of three mountain streams along the Keiji by-pass highway at which debris flow occurred by the heavy rain on 14 August, 2012, discharged sediment and driftwood into the highway. Specially, the slope of the stream bed near the intersection point of highway and stream had so steeper grade than others and there wasn't a sedimentation section at the stream. About slope of stream bed, we can research using high precision topographical maps without field works. From now on, we should evaluate risk of debris flow on mountain streams also focusing on slope of stream bed near intersection point of road and stream.
2013-09-01