The Modern Technique of Rock BlastingWiley, 1978 - 438 halaman |
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Halaman 293
... station the crown lies 6 m below the lowest part of the concrete foundations of the power station . The length of the round is 4.8 m and the blasting is directed towards a central uncharged hole having a diameter of 110 mm . Fig . 9:24 ...
... station the crown lies 6 m below the lowest part of the concrete foundations of the power station . The length of the round is 4.8 m and the blasting is directed towards a central uncharged hole having a diameter of 110 mm . Fig . 9:24 ...
Halaman 378
... station 2 125 m urban rapid transportation station 30 m 20 m FIG . 13 : 2 . Sections indicating relative proportions for some UC objects . The surrounding contour shows the size of a room for oil storage . 65 M 50M WP - SYSTEM Our ...
... station 2 125 m urban rapid transportation station 30 m 20 m FIG . 13 : 2 . Sections indicating relative proportions for some UC objects . The surrounding contour shows the size of a room for oil storage . 65 M 50M WP - SYSTEM Our ...
Halaman 382
... STATION SHAFT FOR LIFT , CABLES AND VENTILATION POWER STATION TRANSFORMER CHAMBER TAIL RACE TUNNEL ACCESS TUNNEL FIG . 13 : 7 . Underground hydro - electric power plant ( Courtesy VBB , Sweden ) . VALLAR LETTEN Sjön Lettens ...
... STATION SHAFT FOR LIFT , CABLES AND VENTILATION POWER STATION TRANSFORMER CHAMBER TAIL RACE TUNNEL ACCESS TUNNEL FIG . 13 : 7 . Underground hydro - electric power plant ( Courtesy VBB , Sweden ) . VALLAR LETTEN Sjön Lettens ...
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