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

Wed. May 24, 2017 1:45 PM - 3:15 PM 102 (International Conference Hall 1F)

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), Chairperson:Masahiro Chigira(Disaster Prevention Research Institute, Kyoto University), Chairperson: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] Dating a past landslide event found on tephra-mantled slope of Takanoobane lava dome, Aso volcano, Japan

*Takashi Kimura¹, Naoki Sakai¹, Yoshiro Tanaka², Ken Nagakura², Kazuhiko Matsuya³ (1.National Research Institute for Earth Science and Disaster Resilience, 2.Nippon Koei Co., Ltd., 3.GEOPLANNER Co., Ltd.)

2:00 PM - 2:15 PM

[HDS17-02] Landslides on the tephra slope with the sliding surface formed in pumice and volcanic soil beds triggered by the 2016 Kumamoto Earthquake, western part of Aso caldera, Kyushu, southern Japan

*Tatsuki Sato¹, Masahiro Chigira², Yuki Matsushi² (1.Kyoto University, Graduate School of Science , 2.Disaster Prevention Research Institute)

2:15 PM - 2:30 PM

[HDS17-03] Evaluation of slope stability for the earthquake-induced sediment due to intense rainfall

Bojun Zhao¹, Yuki Okajima¹, Yasuhiro Mitani¹, Ryunosuke Nakanishi¹, *Hiro Ikemi¹ (1.Faculty of Engineering, Kyushu University)

2:30 PM - 2:45 PM

[HDS17-04] Study on landslide-susceptible slopes by heavy rain in the Aso Caldera, Southwest Japan

*Daisuke Higaki¹, Xueqiang Li², Ikuima Hayashi¹ (1.Faculty of Agriculture and Life Science, Hirosaki University, 2.Japan Conservation Engineers Co. Ltd.)

2:45 PM - 3:00 PM

[HDS17-05] Deep-seated catastrophic landslides induced by large earthquakes along the Nankai and Sagami troughs

*Masahiro Chigira¹ (1.Disaster Prevention Research Institute, Kyoto University)

3:00 PM - 3:15 PM

[HDS17-06] Distribution of highly saline groundwater in the areas with many landslides in the southern Niigata Prefecture

*Nariaki Nishiyama¹, Masahiro Chigira², Koichi Suzuki³, Naoki Watanabe⁴ (1.Graduate School of Science, Kyoto University, 2.Disaster Prevention Research Institute, Kyoto University, 3.Central Research Institute of Electric Power Industry, 4.Research Institute for Natural Hazards and Disaster Recovery, Niigata University)

Session information