*Shiraishi Hayato¹, Wang Xiaoxue¹, Kaku Minori¹, Mori Hirotoshi¹, Nishida Naoto², Sakamoto Yuichi², Okada Fumio², Obana Seiichi² (1. Yamaguchi University, 2. Ube Materials Industries Ltd)

*Wang Xiaoxue¹ (1. YAMAGUCHI UNIVERSITY)

*Ryo Manome¹, Hiroki Iri¹, Tsuyoshi Takayanagi¹, Yosuke Akatsuka¹, Aki Suzuki¹ (1. Railway Technical Research Institute)

*Uemura Kentarou¹, Sato Yuya², Suzuki Sreng Sokkheang¹, Hashimoto Kazuaki³ (1. R&D Center, Nippon koei co., Ltd., 2. Geoenvironment Div., Nippon koei co., Ltd., 3. Sapporo Branch Office, Nippon koei co., Ltd.)

*A Siga Siga¹, Thirapong Pipatpongsa¹, Yuusuke Miyazaki¹ (1. Kyoto University)

*Takahisa Nakamura¹, Takahiro Kageyama¹, Kazuki Ito¹, Taro Ishikawa², Hiroyuki Kawanakajima², Akira Sakata² (1. railway technical research institute, 2. Japan Railway Construction, Transport and Technology Agency)

*Fumika Tajima¹, Takahiro Kageyama¹, Kazuki Ito¹, Taro Ishikawa², Hiroyuki Kawanakajima², Akira Sakata² (1. Railway Technical Research Institute, 2. Japan Railway Construction,Transport and Technology Agency)

*Kageyama KAGEYAMA Takahiro¹, Takahisa Nakamura¹, Fumika Tajima¹, Taro Ishikawa², Hiroyuki Kawanakajima², Akira Sakata² (1. Railway Technical Research Institute, 2. Japan Railway Construction, Transport and Technology Agency)