The Modern Technique of Rock BlastingWiley, 1978 - 438 halaman |
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Halaman 120
... alternatives for loading in bench blasting . Alternative B refers to blasting with Ammonit only ; this is a pre - fabricated , free - running AN - explosive . Alternatives C , D and E are for a bottom charge of dynamite , loaded with ...
... alternatives for loading in bench blasting . Alternative B refers to blasting with Ammonit only ; this is a pre - fabricated , free - running AN - explosive . Alternatives C , D and E are for a bottom charge of dynamite , loaded with ...
Halaman 132
... alternatives . Changing from blasting with dynamite loaded in the ordinary way ( alternative G ) , which is the most expensive of the alternatives investigated , to alternative A with AN - oil , an essentially reduced cost is obtained ...
... alternatives . Changing from blasting with dynamite loaded in the ordinary way ( alternative G ) , which is the most expensive of the alternatives investigated , to alternative A with AN - oil , an essentially reduced cost is obtained ...
Halaman 138
... Alternative E in table 5 : 6 ? Compare with the other alternatives . = 7. At the place mentioned in problem 6 the height of the bottom charge is hy V. Calculate the relative cost for the explosive , if a column charge of Nabit ( an ...
... Alternative E in table 5 : 6 ? Compare with the other alternatives . = 7. At the place mentioned in problem 6 the height of the bottom charge is hy V. Calculate the relative cost for the explosive , if a column charge of Nabit ( an ...
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