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Mine Area Seneca II <br />Project Facilities - Perm Roads <br />TasY. _ Grading to Blend/Drain <br />WORKSHEET N0. PR-3 <br />PRODUCTIVITY FOR DOZER USE - GRAD I:NG <br />Dozing Activity: Grade the permanent roads (the 30~) to drain end blend into <br />surrounding topography. <br />Dozer Used: D-11N, SU Blade <br />Description of Dozing: 100 x 46000 = 107 ac. <br />Productivity Calculations: <br />Operator: 75 <br />Grade: see EMF ' <br />Material Factor: see EMF <br />Push Distance: see EMF <br />Dozing Factor: see EMF <br />Visibility: 90 <br />Altitude: 91 <br />Dual Tilt: 100 <br />Spoil Pile Factor: see EMF <br />Minutes Worked per Hour: 50 <br />Bank Material Density: see EMF <br />Loose Material Density: see EMF <br />Direct Drive Trans: 100 <br />iota! Adj. Factor: 0.338 <br />xourly Production = 2 mi/hr x 19 ft. x 5280 ft/mi x 1 ac/43560 ft2 = 4 ac/hr <br />speed off. blade <br />width <br />Net Nourty Production = 4 ac hr x 0.338 = 1.35 ac/hr Hours 107 ac/1.35 ac/hr = <br />hrly prod op.adj.factor 79 hrs <br />Cost per Hour = 5236.22 <br />Total Cost = 79 hrs. x 5236.22 cost/hr = 518.661 <br />REFERENCES: <br />Table 13-2-5 <br />Attachment 13-2 <br /> <br />