Question: A crawler dozer with a universal blade is to be used in a slot - dozing operation. The material is a dry, non - cohesive

A crawler dozer with a universal blade is to be used in a slot-dozing operation. The
material is a dry, non-cohesive silty sand, and is to be moved a distance of 350 ft from the
beginning of the cut. The dozing is downhill on a 9% grade. The operator will have
average skill, the dozer has a power-shift transmission, and both visibility and traction are
assumed to be satisfactory. The material weighs 108 pcf in the bank state and will swell
12% when excavated by dozing. Job efficiency is assumed to be equivalent to a 45-min
hour (20).

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