山岳トンネル (13)

[VI-305] Example of consideration for the construction of Takatayama Tunnel Phase 2 in the Hanwa Expressway 4-lane project

*Yasunori Kobayashi¹, Shunitirou Takao¹, Tsuyoshi Nonoshita¹, Takuya Yamamoto¹, Sugiura Takahiro², Higashi Atsuyoshi², Hioda Ryosuke² (1. West Nippon Expressway Company Limited, 2. DIA CONSULTANTS CO.,LTD)

Keywords:mountain tunnel, accretionary prism, second line, research planning