A simple solution to assess pore-water pressure in barricades made of waste rock
CIM Journal, Vol. 4, No. 1, 2013
L. Li
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.
Keywords:
Mine backfill, Barricade, Analytical solution, Numerical simulations, Seepage, Pore-water pressure
