Transactions . d. by 5 ft. wide for hand work. The standard drift round is shown in theillustration. Stoping is done with 16-V Waugh and CC-11 Ingersoll-Rand stopers. The men running stoping drills are paid by the foot ofdrill hole put in per shift. Storing Methods We haye in operation the following methods of stoping orebodies:Hard ore in ground that stands exceptionally well is mined by the flatcut-and-fill method and an incline shrinkage-and-fill method. Cut-and-fill Method.—The flat cut-and-fill method, shown in Fig. 8, hasbeen the standard method of Pilares for several years and is the me
Transactions . d. by 5 ft. wide for hand work. The standard drift round is shown in theillustration. Stoping is done with 16-V Waugh and CC-11 Ingersoll-Rand stopers. The men running stoping drills are paid by the foot ofdrill hole put in per shift. Storing Methods We haye in operation the following methods of stoping orebodies:Hard ore in ground that stands exceptionally well is mined by the flatcut-and-fill method and an incline shrinkage-and-fill method. Cut-and-fill Method.—The flat cut-and-fill method, shown in Fig. 8, hasbeen the standard method of Pilares for several years and is the method W. ROGERS WADE AND ALFRED WANDTKE 399 that, at present, produces the largest percentage of the ore. The groundstands exceptionally well in the majority of the orebodies. Some of theseflat cut-and-fill stopes often reach very large dimensions, as, for example,the 646 stope, which is 60 ft. ( m.) wide by 600 ft. ( m.) standard practice is to sill such a stope on the level, then take one. ^^^^^^Mw////////////////////// Limit Commorcial Ore —y?—~ii->^-^ t Chute 1
Size: 1853px × 1349px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
