Construction of Portals for Adits at Stillwater Mining Company’s East Boulder Project
- Organization:
- Society for Mining, Metallurgy & Exploration
- Pages:
- 9
- File Size:
- 235 KB
- Publication Date:
- Jan 1, 2001
Abstract
Stillwater Mining Company is currently developing a second underground palladium and platinum mine approximately 21 km (13 miles) west of their existing Nye operation in the Bear tooth Mountains of southern Montana. Portals for the two access tunnels required at the new site were excavated in limestone talus to accommodate4.6 m (15 feet) diameter tunnel boring machines. A review of the technical design, field conditions and construction of the portals is presented.
Citation
APA: (2001) Construction of Portals for Adits at Stillwater Mining Company’s East Boulder Project
MLA: Construction of Portals for Adits at Stillwater Mining Company’s East Boulder Project. Society for Mining, Metallurgy & Exploration, 2001.