Mining Engineers' Handbook, Volume 1Robert Peele, John Adams Church J. Wiley & sons, Incorporated, 1941 |
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Hasil 1-3 dari 77
Halaman 6-26
... Supplies .... $ 1.38 .16 .08 .97 Supplies : tools . oil . Explosives : 84 $ 1.62 $ 1.55 .03 Air shovel operation : Wages . $ 1.04 $ 11.40 $ 8.89 Shop . .29 Supplies .. .27 Powder @ $ 7.50 per case ... $ 2.93 44 @ $ 8.75 44 Fuse @ $ 44 ...
... Supplies .... $ 1.38 .16 .08 .97 Supplies : tools . oil . Explosives : 84 $ 1.62 $ 1.55 .03 Air shovel operation : Wages . $ 1.04 $ 11.40 $ 8.89 Shop . .29 Supplies .. .27 Powder @ $ 7.50 per case ... $ 2.93 44 @ $ 8.75 44 Fuse @ $ 44 ...
Halaman 6-28
... supplies , $ 2.94 ; construction equipment , not in- cluded above , $ 11.92 ; total , $ 33.28 . Sheep Creek Tunnel ( 21 ) . Section , 10 X 8 ft ; length , 8 707 ft ; untimbered ; hand mucking ; aver advance , 596 ft per mo ; best month ...
... supplies , $ 2.94 ; construction equipment , not in- cluded above , $ 11.92 ; total , $ 33.28 . Sheep Creek Tunnel ( 21 ) . Section , 10 X 8 ft ; length , 8 707 ft ; untimbered ; hand mucking ; aver advance , 596 ft per mo ; best month ...
Halaman 10-140
... supplies ... 0.015 Compressed air . 0.030 Conveying : Labor .... Repairs and supplies .. Power .. $ 0.014 0.008 0.003 Casualty insurance . 0.006 $ 0.025 Drill steel and bits .. 0.060 Hoisting : Labor ... 0.015 Explosives .. 0.140 ...
... supplies ... 0.015 Compressed air . 0.030 Conveying : Labor .... Repairs and supplies .. Power .. $ 0.014 0.008 0.003 Casualty insurance . 0.006 $ 0.025 Drill steel and bits .. 0.060 Hoisting : Labor ... 0.015 Explosives .. 0.140 ...
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Istilah dan frasa umum
angle Ariz aver bench black powder blasting block bottom broken caps cars caving chalcocite chalcopyrite churn drills chutes coal copper core cost per ft cribbed cross-sec crosscuts crystals Data deposits depth diam driven dynamite excavation explosives face filled stopes floor footwall ft deep ft high ft long ft wide fuse gelatin grizzly ground hammer drills hanging wall haulage level hematite hoisting holes horiz igneous rocks inclined intervals iron jackhammers labor lagging limestone loading magnetite manway Mesabi Range method minerals mining mucking orebody pillars pipe porphyry posts powder pump pyrite pyrrhotite quartz quartzite raises rock rods samples sand schist scraper sets shift shovel shrinkage stopes side sill sinking slice sludge soft sphalerite square-set steel stope stulls sub-level sulphide surface Table thick timber tons top-slicing Total tunnel usually veins ventilation waste width