Dozer is used in a pushing operation

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A CAT D7H (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 that the material will swell 6%, from bank to loose state. The center-of-mass-to-center-of-mass pushing distance is 200 ft downhill on a 3% grade. The operators have average skill and the job will be performed in good conditions. 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. (123 bcy/hr, $0.947/bcy)

Reference no: EM131273737

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