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In: Civil Engineering

A 240 hp (power-shift) dozer is used in a pushing operation. The dozer is equipped with...

A 240 hp (power-shift) dozer is used in a pushing operation. The dozer is equipped
with a straight blade. The material (dry and noncohesive) weighs 98 pcf in the bank
state. It is estimated the material will swell 6%, from bank to loose state. The center-of
mass–to–center-of-mass pushing distance is 200 ft. Job efficiency can be assumed to
be equivalent to a 45-min hour. Calculate the production in bcy per hour and the
direct cost of the proposed earthmoving operation in dollars per bcy. The company’s
normal O&O cost for these machines is $95 per hour and the operator’s wage is
$15.00 per hour plus 40% for fringes, insurance, and worker’s compensation. (207
bcy/hr, $0.561/bcy).

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Expert Solution

Ally Wells answered 1 year ago
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