*Yu Sakurai¹, Osamu Yoda¹, Kou Ibayashi¹, Kenji Kamimura¹, Shugo Sekikawa¹, Yuki Murakami¹ (1. National Institute of Technology, Nagaoka College)

*Keiichi Suzuki¹, ENAA Keisoku Gijutsu Kenkyukai² (1. Kawasaki Geological Engineering, 2. Engineering Advancement Association of Japan)

*Yoshiyuki Shigeta¹, Kanshiro Masuda², Naoko Tanaka², Toru Yasuda¹, Koshiro Kakeya¹ (1. Pacific Consultants Co.,Ltd., 2. Ministry of Land, Infrastructure, Transport and Tourism Kinki Regional Development Bureau)

*Atsushi Takano¹, KOJI KONNO¹, HIROHISA SUZUKI¹ (1. Shutoko Engineering Company Limited.)

*Taro Inoue¹, Suguru Ikejima¹ (1. Kyushu railway company)

*toshiyuki niikura¹, Jirou Nakazawa¹, Yusuke Okumura², Alan Burden³, Shintani Tatsuya⁴ (1. Pacific Consultants co.,Ltd, 2. Tokyo Organizing Committee of the Olympic Games, 3. structured environment Limited, 4. YACHIYO CONSTRUCTION co.,Ltd)

*Daichi Wakisaka¹, Yuto Takazawa¹, Toru yasuda¹, Yusuke Okumura² (1. pacific consultants, 2. The Tokyo Organising Committee of the Olympic and Paralympic Games)