Excavation HandbookMcGraw-Hill, 1981 - 1000 halaman |
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Halaman 11-82
... pressure . The isothermal expansion or contraction is expressed by the equation : P1V1 = PƒVƒ = C where P1 = initial absolute pressure , lb / in2 V1 = initial volume , in3 Pf = final absolute pressure , lb / in2 Vƒ = final volume , in3 ...
... pressure . The isothermal expansion or contraction is expressed by the equation : P1V1 = PƒVƒ = C where P1 = initial absolute pressure , lb / in2 V1 = initial volume , in3 Pf = final absolute pressure , lb / in2 Vƒ = final volume , in3 ...
Halaman 11-83
... pressure and temperature . At 60 ° F and 14.7 lb / in2 absolute , weight is 0.0766 lb / ft3 . Volume per pound of air is 13.06 ft3 . Discharge pressure Absolute air pressure in pounds per square inch at outlet from compressor . Double ...
... pressure and temperature . At 60 ° F and 14.7 lb / in2 absolute , weight is 0.0766 lb / ft3 . Volume per pound of air is 13.06 ft3 . Discharge pressure Absolute air pressure in pounds per square inch at outlet from compressor . Double ...
Halaman 11-85
... pressure of free air , lb / in2 Pf = absolute pressure of air in receiver , lb / in2 When the same values used in the characteristic equation are substituted in the equa- tion for horsepower under adiabatic conditions , the horsepower ...
... pressure of free air , lb / in2 Pf = absolute pressure of air in receiver , lb / in2 When the same values used in the characteristic equation are substituted in the equa- tion for horsepower under adiabatic conditions , the horsepower ...
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