*Sho Sakon¹, Nagai Shiko¹, Yasuhito Suzue², Kazuhiro Kozima², Shintaro Sawada² (1. Tohoku Electric Power Co.,Inc., 2. MAEDA CORPORATION)

*kimio ono¹ (1. tohoku epco.co)

*kota sugawara¹ (1. senkenkogyokabushikigaisya)

*Yuki Takahashi¹ (1. Senkenkogyo)

*Rin Kikuchi¹, Hana Nitta¹ (1. NEXCO Engineering Tohoku Company)

*Kiyoharu Tanaka¹, Masahito Tateoka¹, Hiroaki Shouji², Hidetoshi Obana² (1. East Nippon Expressway Company Limited, 2. Kumagai Gumi Co.,Ltd.)