Japan Society of Civil Engineers 2025 Annual Meeting
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Presentation Information

9:40 AM - 9:50 AM JST(12:40 AM - 12:50 AM UTC)

[VI-561]Evaluation of Rock Spalling Events in Mountain Tunnel Construction and the Effectiveness of Face and Primary Shotcrete

*Naotaka Kikkawa1, Koki Kumagai2, Hirofumi Miyahara3, Daisuke Fujioka4, Masaya Miura5, Tatsunosuke Morisaki6 (1. National Institute of Occupational Safety and Health, Japan, 2. Tobishima Corporation, 3. MAC Co., Ltd., 4. Obayashi Corporation, 5. Tokyu Construction Co., Ltd., 6. Kotobuki Kensetsu Co., Ltd.)

Keywords:

tunnel face,rock spalling,face-shotcrete,primary-shotcrete

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