Journal
CANADIAN GEOTECHNICAL JOURNAL
Volume 46, Issue 1, Pages 37-46Publisher
CANADIAN SCIENCE PUBLISHING
DOI: 10.1139/T08-104
Keywords
mine stope; backfill; barricades; earth pressure; analytical solution; numerical modelling
Funding
- Institut de Recherche Robert-Sauve en Sante et en Securite du Travail du Quebec (IRSST)
- Industrial NSERC Polytechnique-UQAT Chair on Environment and Mine Wastes Management
Ask authors/readers for more resources
Stope backfilling is used in underground mines to provide a safer working space for personnel and machinery. To ensure a secure application of backfill, it is critical to accurately evaluate the pressures exerted on the walls and barricades placed near the base of the stope to retain the fill materials. In this paper, existing solutions for evaluating the stresses on barricades are reviewed. The authors then propose a new three-dimensional analytical solution that takes into account the stress transfer from the backfill to the walls in both the stope and access drift. In particular, the solution considers the influence of the barricade position within the drift on the stress state. Comparisons are made between the proposed solution, physical model test results, and numerical simulations. The good agreement between various results indicates that the proposed formulation provides a good estimate of the pressure on a barricade. The solution presented here is applicable to fully drained backfill (without water-pore pressure); the solution for saturated backfill is given in a companion paper (see Part II, this issue).
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available