*MAIKA KAGETA¹, Sumio Yazaki¹, Akira Suzuki¹, Yuto Kawasaki¹, Sakura Kawamata², Michiyuki Harata², Ryuichi Ishigaki², Kenichi Kojima³, Masahiro Kondoh⁴ (1. Integrated Geotechnology Institute Limited, 2. Tokyo Printing Ink MFG.Co.,LTD., 3. Railway Technical Research Institute, 4. JR West Japan Consultants Company)

*Takashi Nakayama¹, Tadashi Hara², Keigo Koizumi³ (1. C.S.Inspector Co.,Ltd, 2. Kochi Univ., 3. Earth Watch Institute,Inc.)

*Kosuke NAKASHIMA¹, Hiroshi YAMATO², HIROHIKO KUSAKA³, KENTA HIRAI⁴, Masahide Ooga⁵, Ota Masayuki⁵ (1. Central Nippon Expressway Company Limited, 2. Nippon Expressway Research Institute, 3. East Nippon Expressway Company Limited, 4. West Nippon Expressway Engineering Chugoku Co., Ltd., 5. Dia Nippon Engineering Consultants Co., Ltd.)

*HIROKI IRI¹, Aki Suzuki¹, Osamu Nunokawa¹ (1. Railway Technical Research Institute)

*YUTAKA KATO¹, hiroki iri¹, tsuyoshi takayanagi¹ (1. Railway Technical Research Institute)

*YUUKI FUKASAWA¹, AKIYOSHI KAMURA², DAISUKE KURIYAMA¹, JUNNICHI KOMATSU¹ (1. Okuyama Boring Co.,Ltd, 2. Tohoku University)

*Takumi Obara¹, Takuma Ichioka¹, Shima Kawamura¹, Nobuo Mishima² (1. Muroran Institute of Technology, 2. Kawasaki Geological Engineering, Co.Ltd.)

*SHANGNING TAO¹, LIN WANG¹, Kohei Kasahara², Susumu Nakajima², Hashimoto Kazuyoshi¹, Fukuhara Makoto¹ (1. Chuo Kaihatsu Corporation, 2. Railway Technical Research Institute)