A simple solution to assess pore-water pressure in barricades made of waste rock
CIM Journal, Vol. 4, No. 1, 2013
Department of Civil, Geological and Mining Engineering, Polytechnique Montréal, Montreal, QC
Stope backfilling is a common operation in many underground mines, which requires a barricade at the base of the stope near the drift entrance to retain the backfill in place. In this paper, the distribution of pore-water pressure in barricades made of waste rock is analyzed. An analytical solution is introduced and applied to estimate the pore-water pressure along the base and full height of the barricade. Results show that the analytical solution generally accurately predicts the distribution of pore-water pressure obtained from the numerical calculations, especially in the upstream part of the barricade, where it is most critical.
Mine backfill, Barricade, Analytical solution, Numerical simulations, Seepage, Pore-water pressure