The Modern Technique of Rock BlastingWiley, 1978 - 438 halaman |
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Halaman 125
... drill hole per m3 broken rock . ( Metric System . ) Relative cost per m3 rock Drill hole Alternative Explosive Am AN - oil / ammonit = 1.20 0.60 0.40 0.28 $ / dm3 ABCDEFGHI 0.06 / - 0.78-0.59 0.39-0.29 0.26-0.19 0.18-0.13 В - / 0.09 ...
... drill hole per m3 broken rock . ( Metric System . ) Relative cost per m3 rock Drill hole Alternative Explosive Am AN - oil / ammonit = 1.20 0.60 0.40 0.28 $ / dm3 ABCDEFGHI 0.06 / - 0.78-0.59 0.39-0.29 0.26-0.19 0.18-0.13 В - / 0.09 ...
Halaman 130
... drill hole and explosive as a function of bench height with different drill hole diameters . Width of the bench B = 40 m ( 130 ft ) . Alternative D , Am = AN + oil . Diameter d Drilling cost K = 3 m in $ / dm3 $ / ft 10 17 08380 10 15 ...
... drill hole and explosive as a function of bench height with different drill hole diameters . Width of the bench B = 40 m ( 130 ft ) . Alternative D , Am = AN + oil . Diameter d Drilling cost K = 3 m in $ / dm3 $ / ft 10 17 08380 10 15 ...
Halaman 423
... drill drill bit drill dust drill hole plataforma de barrena- drill jumbo ción escalera de perforadora drill ladder ( guía ) barras de barrenación metro de barrenado barrendador , perforista drill steel drilled meter driller drilling ...
... drill drill bit drill dust drill hole plataforma de barrena- drill jumbo ción escalera de perforadora drill ladder ( guía ) barras de barrenación metro de barrenado barrendador , perforista drill steel drilled meter driller drilling ...
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