[III-215] Experimental study on subsidence prevention during earthquake on back fill by jet grouting
〇Riki Kinjo1, Atsushi Kawanishi1, Yoshisada Hamada2, Yuki Kominato2, Taisuke Sanagawa3, Takuya Nakashima3 (1.Maeda Corporation, 2.West Japan Railway Company, 3.Railway Technical Research Institute)