火山灰

[13-9-2-08] Characteristics of constant volume cyclic direct box shear tests on sliding tephra layers in landslide at Abira town caused by 2018 Hokkaido Eastern Iburi Earthquake

*YUKI OKAWARA¹, Satoshi Goto², Kento Okada², Yube Hiyoshi², Hiromichi Koyasu³, Satoshi Ishimaru³, Naoki Watanabe⁴ (1. Univ. of Yamanashi, 2. Graduate School, Univ. of Yamanashi, 3. Hokkaido Research Organization, 4. Research Institute for Natural Hazards and Disaster Recovery, Niigata University)

Keywords:tephra layers landslide, cyclic of constant volume , characteristics of shear stress