The Modern Technique of Rock BlastingWiley, 1978 - 438 halaman |
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Halaman 137
... correctly tamped with the proper loader and correctly distributed in the hole . 5.6 . Problems 1. The price of AN - oil is assumed to be 0.11 $ / kg ( 0.05 $ / lb ) in table 5 : 1 . Calculate the total costs of the explosive and the ...
... correctly tamped with the proper loader and correctly distributed in the hole . 5.6 . Problems 1. The price of AN - oil is assumed to be 0.11 $ / kg ( 0.05 $ / lb ) in table 5 : 1 . Calculate the total costs of the explosive and the ...
Halaman 255
... correct placing but an excessive concentration of the charge the average value is only x = 0.85 . Even if expected - as previous experiments have shown the importance of avoiding excessive charges it is here surprising that such small ...
... correct placing but an excessive concentration of the charge the average value is only x = 0.85 . Even if expected - as previous experiments have shown the importance of avoiding excessive charges it is here surprising that such small ...
Halaman 311
... refer to site A ; broken lines to site B which , contrary to A , has exceptionally homogeneous rock . Curves a , large overcharge ; other curves , correct charge . concentration of not more than 3-4 times the values indicated. 311.
... refer to site A ; broken lines to site B which , contrary to A , has exceptionally homogeneous rock . Curves a , large overcharge ; other curves , correct charge . concentration of not more than 3-4 times the values indicated. 311.
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