Excavation HandbookMcGraw-Hill, 1981 - 1000 halaman |
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Halaman 11-35
... wire must be calculated , as well as the energy output of the blasting machine . Thus the powder operator must cope ... wires of the caps to be connected to the two sides of the circuit . It has the disadvantage that the leg wires are ...
... wire must be calculated , as well as the energy output of the blasting machine . Thus the powder operator must cope ... wires of the caps to be connected to the two sides of the circuit . It has the disadvantage that the leg wires are ...
Halaman 11-36
... wires are connected to the bus wire by a circumferential twist of the leg wire around the bus wire . Circuits are tested by galvanometers and voltameters , and of course this testing is a necessary preblasting precaution to avoid costly ...
... wires are connected to the bus wire by a circumferential twist of the leg wire around the bus wire . Circuits are tested by galvanometers and voltameters , and of course this testing is a necessary preblasting precaution to avoid costly ...
Halaman 11-65
... wires or fuse at the point of entry into the cap . When side priming a heavy wall or a heavyweight cartridge , wrap ... wire ends to be connected are bright and clean . TABLE 11-9 Dos and Don'ts ( Continued ) Adopted by Blasting 11-65.
... wires or fuse at the point of entry into the cap . When side priming a heavy wall or a heavyweight cartridge , wrap ... wire ends to be connected are bright and clean . TABLE 11-9 Dos and Don'ts ( Continued ) Adopted by Blasting 11-65.
Isi
ROCK WEATHERING | 3-4 |
LANDFORMS AND GEOMORPHOLOGY | 4-4 |
OPENCUT EXCAVATIONS | 5-3 |
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Istilah dan frasa umum
alluvium average axles backhoe blasthole borrow pit brake horsepower bucket bucket loader bulldozer calculated California capacity clearing and grubbing cofferdam compaction compactor compressor conveyor cost of ownership crawler-tractor cubic yard cybm cybm/h cysm depth diameter diesel engine dipper Direct job unit dragline dredge dumping efficiency electric embankment equation estimated explosives factor fill freeway friction ft/min ft/s gal/min grade granite haul road haulage head loss heavyweight hoist hole horsepower hourly production igneous igneous rock illustrates job unit cost lb/in² length limestone loading machine machinery material maximum medium metamorphic rocks mi/h off-the-road open-pit mining ownership and operation percent pipe pump quarry r/min rock excavation rock formation rock haulers rock-earth rolling resistance scraper sedimentary rock shovel shown in Figure slope soft specifications Table tare weight tire tons tow-type tractor tractor-bulldozer tractor-rippers truck valve velocity water wagon weight wellpoint wheels-tires width Work-cost indicator yd³