[H-DS17] Geohazards in humid, tectonically active countries and their precursors

Tue. May 24, 2016 1:45 PM - 3:15 PM 202 (2F)

Convener:*Masahiro Chigira(Disaster Prevention Research Institute, Kyoto University), Satoru Kojima(Department of Civil Engineering, Gifu University), Hiroshi YAGI(Faculty of Art, Science and Education, Yamagata University), Taro Uchida(National Institute for Land and Infrastructure Management), Chair:Hiroshi YAGI(Faculty of Art, Science and Education, Yamagata University)

This session covers mass movements of landslide, slope failure, debris flow, and gravitational slope deformation in tectonically active, humid countries, and aims to discuss on their mechanisms, characteristics of occurrence sites, the significance in geological time scale, and the methodology to mitigate their affects by researchers with various related research fields.

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1:45 PM - 2:00 PM

[HDS17-01] Basement structure under the sediments accumulated in the ridge-top depression and landslide-dammed lake around Mt. Tsuenomine, Kumano City, Mie Prefecture: Results of integrated analyses by drilling, electrical and seismic survey methods

*Satoru Kojima¹, Yoshinobu Murata¹, Naoya Iwamoto², Keitaro Komura³, Tomohiro Ymazaki³, Heitaro Kaneda³, Tomoyuki Ohtani¹ (1.Department of Civil Engineering, Gifu University, 2.Sanyu Consultants Inc., 3.Department of Earth Sciences, Chiba University)

2:00 PM - 2:15 PM

[HDS17-02] Gravitational deformation process in Tokugotoge Pass and Mt Otakiyama, Northern Japan Alps

*Hidehisa Nagata¹, Satoru Kojima², Kenta Koide² (1.Fu-Sui-Do Company Limited, 2.Faculty of Engineering, Gifu University)

2:15 PM - 2:30 PM

[HDS17-03] Oxygen isotopic dendrochronology of a gigantic rock avalanche and its comparison with historical documents -an interim report of the research group on high resolution chronology of large deep-seated landslides

*Ryuji Yamada¹, Kimio Inoue², Yoshihiko Kariya³, Takumi Mitsutani⁴, Shoji Doshida⁵, Masaki Sano⁶, Zhen Li⁶, Takeshi Nakatsuka⁶ (1.National Research Institute for Earth Science and Disaster Prevention, 2.Sabo Frontier Foundation, 3.Senshu University, 4.Nara National Research Institute for Cultural Properties Repository, 5.National Research Institute of Fire and Disaster, 6.Research Institute for Humanity and Nature)

2:30 PM - 2:45 PM

[HDS17-04] Shinseiko-landslide induced by the great Kanto Earthquake had a sliding surface in the Tokyo Pumice, which is widely distributed in Kanagawa and Tokyo areas

*Masahiro Chigira¹, Hirokazu Furuki², Tomohiro Kasama³, Takehiko Suzuki⁴ (1.Disaster Prevention Research Institute, Kyoto University, 2.Nippon Koei Co. Ltd., 3.Kanagawa Prefectural Museum of Natural History, 4.Tokyo Metropolitan University)

2:45 PM - 3:00 PM

[HDS17-05] Characteristics of tephra thickness distribution in steep regions of Aso Volcano and their origin

*Takashi Kimura¹, Shintaro Hayashi², Satoshi Goto³, Go Sato⁴, Akihiko Wakai⁵, Shoji Doshida⁶, Daisuke Higaki⁷ (1.The Japn Landlside Society, 2.Akita University, 3.University of Yamanashi, 4.Teikyo Heisei University, 5.Gunma University, 6.National Research Institute of Fire and Disaster, 7.Hirosaki University)

3:00 PM - 3:15 PM

[HDS17-06] Slope disaster along Bhote Kosi River, induce by Nepal-Gorkha earthquake in 2015

*Hiroshi YAGI¹, Yu Hirose¹, Daisuke Higaki², Akihiko Wakai³, Masahiro Chigira⁴, Go Sato⁵, Hiroshi, P. Sato⁶ (1.Faculty of Art, Science and Education, Yamagata University, 2.Faculty of Agriculture and Life Sciences, Hirosaki University, 3.Graduate School of Science and Technology, Gunma University, 4.DPRI, Kyoto University, 5.Graduate School of Environmental Information, Teikyo Heisei University, 6.Faculty of Humanities & Sciences, Nihon University)