山岳トンネル(14)

[VI-462] Examination of stability measures based on additional geological surveys at fragile Tunnel portal

〇Hirotaka Satou¹, Daisuke Yamaki¹, Noboru Kayamori¹, Tatsuhiko Otani¹, Takuya Kushida², Tamotsu Kurosawa³ (1.Nishimatsu Construction, 2.Fukushima Prefecture, 3.CTI Engineering)

Keywords:Stability study of fragile geology, Finite Element Method, 3D geological model