Excavation HandbookMcGraw-Hill, 1981 - 1000 halaman |
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Halaman 11-17
... correct evaluation depends on the experience of the estimator . The calculations are set forth in Table 11-1 . When time and money permit , a practical estimate may be based on actual exploratory ripping of the rock formation , but this ...
... correct evaluation depends on the experience of the estimator . The calculations are set forth in Table 11-1 . When time and money permit , a practical estimate may be based on actual exploratory ripping of the rock formation , but this ...
Halaman 13-83
... correctly that the rear - dump machine is built to handle all kinds of rock - earth on all lengths of haul and under most kinds of hauling conditions . That it alone , with the exception of the side - dump hauler , can handle poorly ...
... correctly that the rear - dump machine is built to handle all kinds of rock - earth on all lengths of haul and under most kinds of hauling conditions . That it alone , with the exception of the side - dump hauler , can handle poorly ...
Halaman 16-26
... correct for the illumination on a vertical surface . This near equality holds for surfaces beyond 100 ft from a lamp with mast height up to 40 ft . The aiming point of the lamp is approximately one - third of 470 ft , or 157 ft from the ...
... correct for the illumination on a vertical surface . This near equality holds for surfaces beyond 100 ft from a lamp with mast height up to 40 ft . The aiming point of the lamp is approximately one - third of 470 ft , or 157 ft from the ...
Isi
ROCK WEATHERING | 3-4 |
LANDFORMS AND GEOMORPHOLOGY | 4-4 |
OPENCUT EXCAVATIONS | 5-3 |
Hak Cipta | |
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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