[3oral420-24] G1-8. sub-Session 08

Tue. Sep 6, 2022 3:45 PM - 5:00 PM oral room 4 (Build. 14, 401)

Chiar:Ken-ichi NISHIYAMA, Yoshihiro Kase

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3:45 PM - 4:00 PM

[G8-O-1] Revisit of origin of stratified tephra slides and implication of landslides interpreted by SfM aerial photography in eastern Hokkaido, Japan

【ハイライト講演】

*Yoshihiro Kase¹, Hiromichi Koyasu¹, Kenji Nishina¹, Satoshi Ishimaru¹, Kenichi Koshimizu¹ (1. Hokkaido Research Organization)

世話人よりハイライトの紹介：2018年に発生した胆振東部地震では火山噴出物を含む地質が広範囲に崩壊し，過去最大級の斜面災害が発生しました．その災害は特徴的な風化した火山灰層をすべり層として発生したことが指摘されています．著者らの研究は北海道東部の摩周テフラ分布域においても同様の風化火山灰層があることを発見し，その特性を分析しました．さらには，高解像度の地形データなどを用いて複数の地すべりを標津断層帯周辺で発見しました．防災科学的にもその成果は注目されます．※ハイライトとは

4:00 PM - 4:15 PM

[G8-O-2] Early Processes of Stratified Tephra Slide induced by strong ground motion stratigraphic Sliding Associated with Strong Ground Motions: The Case of the 2018 Hokkaido Eastern Iburi Earthquake

*Wataru Hirose¹ (1. Hokkaido Research Organization)

4:15 PM - 4:30 PM

[G8-O-3] Construction of a risk model for the possibility of collapse and landslide

*Hiroshi Sugawara¹ (1. Bellsedge Incorporated)

4:30 PM - 4:45 PM

[G8-O-4] Development and application of sequential updating system of 3D Geological model for mountain tunnel construction

*Shuro Yoshikawa¹, Tsuyoshi Fukuda¹, Yasuhisa Aono¹, Kanji Saito¹ (1. Shimizu Corporation)

4:45 PM - 5:00 PM

[G8-O-5] Subsurface geology of Naruto Area, Tokushima Plain using drilling database

*ken-ichi NISHIYAMA¹ (1. Graduate School of Technology, Industrial and Social Sciences, Tokushima University)

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