Excavation HandbookMcGraw-Hill, 1981 - 1000 halaman |
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Halaman 13-5
... engines , one can readily appreciate the usefulness of pressure - aspirated engines . In all cases it is suggested that the engine specifications of the manufacturer be consulted , as different pressure - aspirated engines have ...
... engines , one can readily appreciate the usefulness of pressure - aspirated engines . In all cases it is suggested that the engine specifications of the manufacturer be consulted , as different pressure - aspirated engines have ...
Halaman 13-6
... engine . The load factor is the average percentage of engine full horsepower consumed during a period of time , usually the life of the machine . A low load factor would be 30 percent for a crane - clamshell machine casting outsize ...
... engine . The load factor is the average percentage of engine full horsepower consumed during a period of time , usually the life of the machine . A low load factor would be 30 percent for a crane - clamshell machine casting outsize ...
Halaman 16-52
... engines of a manufacturer . Gasoline engines are of the four - cycle type , naturally aspirated . Fuel consumption averages 0.52 lb / bhp h . If the engine of Figure 16-31 operates at a 67 percent load factor in intermittent service ...
... engines of a manufacturer . Gasoline engines are of the four - cycle type , naturally aspirated . Fuel consumption averages 0.52 lb / bhp h . If the engine of Figure 16-31 operates at a 67 percent load factor in intermittent service ...
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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