The Modern Technique of Rock BlastingWiley, 1978 - 438 halaman |
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Halaman 92
... loading tube into the drill holes . If divers carry out the loading from the bottom they need not insert the cartridges ... load dynamite cartridges to a density o = 1.3–1.5 kg / dm3 ( 80-95 lb / cu.ft ) at a gross capacity of 300-500 kg ...
... loading tube into the drill holes . If divers carry out the loading from the bottom they need not insert the cartridges ... load dynamite cartridges to a density o = 1.3–1.5 kg / dm3 ( 80-95 lb / cu.ft ) at a gross capacity of 300-500 kg ...
Halaman 94
... loads approximately 600 pounds per 8 - hour shift , and two men load 1100-1300 pounds per shift in drill holes of 50 feet depth . By using the semiautomatic breech - piece and the robot loader ( fig . 4 : 7 ) the loading will be done ...
... loads approximately 600 pounds per 8 - hour shift , and two men load 1100-1300 pounds per shift in drill holes of 50 feet depth . By using the semiautomatic breech - piece and the robot loader ( fig . 4 : 7 ) the loading will be done ...
Halaman 427
... load load without packing load with intermediate wood sticks kalksten gräns , begränsning gränsladdning infordring , inklädnad ladda , lasta ; belastning ; laddning loader , mucking machine lastmaskin explosivos descombrado loading ...
... load load without packing load with intermediate wood sticks kalksten gräns , begränsning gränsladdning infordring , inklädnad ladda , lasta ; belastning ; laddning loader , mucking machine lastmaskin explosivos descombrado loading ...
Isi
Symbols used | 16 |
Calculation of the charge General part | 28 |
Calculation of the charge Practical application | 69 |
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Istilah dan frasa umum
advance per round Ammonit ammonium nitrate AN-oil angle of breakage bench blasting bench height blasting gelatine bottom charge burn cuts calculations cartridges cm/m column charge concentration of charge connection corresponding cracks cylinder cuts damage degree of packing detonators deviation diagram distance dm³ drill hole drilled depth drilling cost drilling pattern dynamite effect electric empty hole energy example faults flash-over fragmentation frequency gives greater ground vibrations ignition pattern increased indicated instantaneous interval kg/m kg/m³ Langefors-Kihlström lb/cu.ft lb/cu.yd lb/ft loading tube lower maximum burden meter multiple-row rounds Nabit Nitroglycerin Nonel number of holes obtained ordinary delay parallel hole cuts practical burden presplitting pressure reduced risk rock blasting rock factor row of holes shock wave slope smooth blasting specific charge sq.ft stoping Sweden swelling Täby throw tion tunnel underwater blasting V₁ velocity vertical weight strength width