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Author: Admin | 2025-04-28
Mining stages.Helinski [15,16], Fahey [17], and Gibson [18] studied the curing process and the arching phenomenon of the backfilled CRF in the stopes by comparing field measured data and the back analysis based on laboratory measurements. In the blasthole stoping method, the backfilled CRF is prepared for the secondary stope blasting. Emad [19,20,21] and Henning [22] examined and simulated different blast loads and profiles to assess the effects of blast vibrations on CRF backfilled stopes by monitoring vibration in a CRF stope. Thompson [23,24,25] quantified the evolution of total geo-pressures and pore pressures within the core of the backfilled CRF to assess the stability by conducting in situ experiments in long-hole stopes. Kumar [26] conducted laboratory studies to characterize various mechanical properties of cemented rockfill (CRF) formulations and developed the relationship between the strength and the unit weight of CRF to better design and control CRF quality during its large-scale application in underground cut-and-fill blasthole stopes. Cordova [5] studied the effect of particle size distribution upon the overall uniaxial compressive strength (UCS) of the cemented rockfill (CRF). Seymour [27,28] and Tesarik [29,30] studied the long-term relationship between the compressive and tensile strength of CRF and the stability of CRF undercut spans by reading the monitoring data of the installed instruments in the test sites. Marlow [31] compared the shotcrete ribs and the cemented rock fill (CRF) to weaken the hazards and control convergence and overbreak during the backfilling process. Sainsbury [32,33] developed a novel numerical modeling approach to simulate the
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