Landslides and precipitation characteristics during the typhoon Lionrock in Iwate prefecture, Japan

Thapthai Chaithong, Daisuke Komori, Yuto Sukegawa, Yoshiya Touge, Yuta Mitobe, Satoshi Anzai

研究成果: Article査読

3 被引用数 (Scopus)

抄録

In August 2016, the typhoon Lionrock made landfall on Japan's northeastern coast and caused floods and landslides. Lionrock brought heavy precipitation to Japan, which Shimotokusari station (33201) recorded 24-hour rainfall amount over 200 mm and the peak rainfall intensity was approximately 65 mm/hr. The total cost of damage within the Iwate prefecture is over 700 million dollars, moreover, 20 lives were lost and 4 people missing. Therefore, the objective of this paper is to present the results of the post-disaster investigation, including, the back-analysis of landslides and precipitation due to the typhoon Lionrock. The rainfall and landslides relationship is significantly important for rainfall intensity-duration threshold. For this typhoon, the empirical rainfall intensity-duration threshold has been derived as I = 20.24D-0.33. The slope failure could be broadly categorized into the debris flow, surficial erosion, and soil slide, moreover, occurred on slopes ranging from 19 to 58 degrees.

本文言語English
ページ(範囲)109-114
ページ数6
ジャーナルInternational Journal of GEOMATE
14
44
DOI
出版ステータスPublished - 2018

ASJC Scopus subject areas

  • Environmental Engineering
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology
  • Soil Science

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