chapter  73
5 Pages

Improvement of post-pillars behaviour providing its confinement by tailings backfill

ByM.O.C.H.Costa e Silva

This paper presents the experimental work performed in laboratory to provide a better understanding of the improvement of geomechanical behaviour of post-pillars confined by tailings (complex sulphides and marble sawing slimes). The results of the experimental work were analysed according to the Salamon methodology, meaning that mine pillars were assumed to be like rock samples tested in high stiffness loading compressive machines. Some promising conclusions are presented regarding two different aspects, the improvements on peak strength and on the rupture control, being the last one measured by the deformations energies.