In October 2013, Dumas commenced contract mining at Seabee Mine, located in Laonil Lake, Saskatchewan. Owned and operated by SSR Mining, this project centered on Alimak stoping methods.
The work involved driving a footwall haulage drift along the strike of the orebody, cross-cutting perpendicular to create Alimak nests, and developing 3m x 3m pilot raises from the mucking horizon to the upper sill of the ore zone. Crews also undertook secondary ground support, production blasting, and stope backfilling. The program, originally short-term, was extended nearly a year due to productivity and success, with more than 400 metres of 3m x 3m raises excavated and 100,000 tons of ore produced.
Scope of Work
- Footwall haulage drift and cross-cutting for Alimak nests
- Excavation of 3m x 3m Alimak raises
- Secondary ground support and production blasting
- Stope backfilling and ore production
Source and copyright: SSR Mining Inc.
