Pre-mining ground stresses at some hard rock mines in the Canadian Shield
Abstract
At some hard rock mines in Canada, ground stresses appear to be one of the significant factors in the context of rockbursts and underground instability. To provide background data for numerical stability analysis and an optimum mine design, overcoring strain relief measurements using triaxial strain cells were performed at depths from 60 to 1890 m at several mine sites. Pre-mining ground stress determinations from 67 stress tensor analyses resulted in the following vertical stress, σ v , and average horizontal stress, σ H a , gradients:
Fields of Study & Subjects
Rock Mechanics and Modeling
Geomechanics and Mining Engineering
Geotechnical and Geomechanical Engineering
Publication details
- Journal / source
- CRC Press eBooks
- Pages
- 719–719
- Publication date
- 13 February 2026
- Language
- EN
- Document type
- Book chapter