山岳トンネル(6)

[VI-898] Construction results of countermeasures in the face collapsed part due to geological properties

〇Yasuhito Tsujikawa¹, Masashi Naitou¹, Masato Naitou¹, Tadayuki Hosoi¹, Hiroshi Hidaka¹, Tsuyoshi Osaka¹ (1.TODA CORPORATION)

Keywords:tunnel, Collapse, serpentinite, Elastic wave tomography, finite element analysis, auxiliary construction method