Japan Society of Civil Engineers 2024 Annual Meeting
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Presentation Information

5:30 PM - 5:40 PM JST(8:30 AM - 8:40 AM UTC)

[VI-378]Outbreak Reduction Effects of Presplitting in Rock with Many Cracks

*Hajime Hamada1, Mitsuyoshi Tokunaga2, Ryohei Miura3 (1. Okumura Corporation Technical Research Institute, 2. Okumura Corporation Tohoku Branch, 3. Okumura Corporation Nagoya Branch)

Keywords:

Mountain Tunnel,Cautious Blasting,Presplitting,Guide Hole,Outbreak,Smoothing

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