Robotic Mining and Micro Tunneling Using Hypersonic Projectile Impact Technology: Field Trial Results, Technical Evaluation and Economic Valuation - RETC2021
- Organization:
- Society for Mining, Metallurgy & Exploration
- Pages:
- 14
- File Size:
- 7057 KB
- Publication Date:
- Jun 13, 2021
Abstract
Hypersonic tunnel boring (HTB) uses directed, high velocity projectile impacts to remove rock. HTB is highly independent of rock strength and targets hard, abrasive rock and variable rock environments. This paper discusses history, theory and presents test (2×2 m and .75×.5 m tunnels) field trial results and technical and economic evaluation. The HTB tests are compared against the historic ‘project REAM’ and the concept against tunnel boring machines and drill & blast in design studies for full-scale 12 m and 4.5×5.5 m tunnels. The positive results indicate that under these conditions HTB can replace Drill & Blast and Tunnel Boring Machines.
Citation
APA: (2021) Robotic Mining and Micro Tunneling Using Hypersonic Projectile Impact Technology: Field Trial Results, Technical Evaluation and Economic Valuation - RETC2021
MLA: Robotic Mining and Micro Tunneling Using Hypersonic Projectile Impact Technology: Field Trial Results, Technical Evaluation and Economic Valuation - RETC2021. Society for Mining, Metallurgy & Exploration, 2021.