Japan Society of Civil Engineers 2022 Annual Meeting

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第VI部門

山岳トンネル (7)

Fri. Sep 16, 2022 10:40 AM - 12:00 PM VI-2 (吉田南総合館北棟　共北２５)

Chair: Suguru Shirasagi

11:20 AM - 11:30 AM

[VI-774] A study on the origin of the autobrecciated part of fragile andesite that appeared in tunnel excavation

*Shu Hotani1, Syunsuke Inui2, Toru Taho1, Hirohito Kanbayashi1 (1. HAZAMA ANDO CORPORATION, 2. Ministry of Land, Infrastructure, Transport and Tourism)

Keywords:Mountain tunnel, Andesite, Autobrecciated lava

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