Effect of hydration on failure surface evolution of low sulfide content cemented paste backfill

Backfill in deep and high-stress mining controls stress redistributions and provides rock mass support on the mine-wide scale. The advantages of Cemented Paste Backfill (CPB) include fastest filling rate (including the potential for continuous backfilling), uniform as-placed properties, and tight filling of the mined voids. Numerically analyzing CPB response during filling, curing, and subsequent mining must account for evolving strength...