*masayuki yoshimi1, Gaku Shoji2, Yusuke Ono3, Keisuke Ishikawa4, Masataka Shiga5, Shuji Moriguchi6, Kazuma Inoue7, Ikki Kato8, Takuya Ito9, Nobuo Takai10, Seiji Tsuno11, Hiroaki Yamanaka12
(1. Geological Survey of Japan/AIST, 2. Unversity of Tsukuba, 3. Tottori University, 4. Tokyo Denki University, 5. Nagaoka University of Technology, 6. Tohoku University, 7. Gunma College, National Institute of Technology, 8. Obayashi Corporation, 9. Pacific Consultants, 10. Hokkaido University, 11. Railway Technical Research Institute, 12. Tokyo Institute of Technology)
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