レーザー測量データが表層崩壊発生斜面予測及び岩盤クリープ斜面抽出に及ぼす効果に関する検討

概要

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In the last decade, a variety of studies examined applicability of high-resolution topographic data developed by LiDAR data for prediction and clarification of sediment movement, including debris flow, shallow landslide, deep-seated landslide and so on. Here we examine (1) usefulness for prediction of shallow landslide location using simple physically based model and (2) effectiveness for identifying mass-rock creeping slopes based on the characteristic eigenvalue ratio and slope angle. We analyzed the data of the shallow landslides at Hiroshima, Japan and showed high-resolution topographic data was useful for prediction of shallow landslide location. We also confirmed effectiveness for identifying mass-rock creeping slopes based on the analysis of the data of Waniduka Mt., Miyazaki, Japan.
2010-10-25