1. (25 Points) A CAT D9T dozer utilizing a semi-universal (SU) blade is to be used in a slot dozing operation. The material is a dry non-cohesive and is to be moved 150 ft from the beginning of the cut. The dozing is uphill on a 5% grade. The dozer has a power shift transmission, the operator has average skill, traction is assumed to be satisfactory land visibility is good. The weight of the material is 2,550 pounds per loose cubic yard (Icy). Job efficiency is assumed to be equivalent to a 50-minute hour. The O&O cost for the dozer is $165.00 per hour including the operator's wage and fringes. Use the dozing production chart furnished and the information below. Note these charts are based on a material weight of 2,300 pounds per loose cubic yard (Icy). Calculate the unit cost of the proposed earth moving operation in dollars per Icy. JOB CONDITION CORRECTION FACTORS TRACK-TYPE TRACTOR % Grade vs. Dozing Factor (-) Downhill (+) Uphill 1.00 0.75 0.50 1.20 0.80 0.70 0.80 OPERATOR Excellent Average Poor MATERIAL Loose stockpile Hard to cut frozen - with it cylinder without it cylinder Hard to dritt "deaddrynon cohesive material or very sticky material Rock, ripped or blasted SLOT DOZING SIDE BY SIDE DOZING VISIBILITY Dust rain, snow, fog or darkness JOB EFFICIENCY 50 mehr 40 miwhir BULLDOZER Adjust based on SAE capacity relative to the base blade used in the Estimated Dezing Production 0.50-0.80 1.20 1.15-1.25 0.80 0.67 -30 -20 -10 0 +10 +20 +30 GRADES-See following graph "NOTE Anglingades and cushion des we not considered production dorg os Depending on condos Abade and Code wil verage of adepo ESTIMATING DOZER PRODUCTION OFF-THE-JOB