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5 <br /> 1 <br /> Knock Down West Wall ft 3 <br /> Length(ft) 1,474.00 10 <br /> Slope 3:1 s 1 S1, <br /> Height(ft) 5.00 5 t 3I'6FT <br /> Width(ft) 30.00 IV <br /> Width of Backfill (ft) 15.00 <br /> Mine Grade 0.25.1 15 FT <br /> 30 FT <br /> Backfill Area per unit length (sf) 38 <br /> Backfill Volume(cf) 55,275 <br /> Backfill Volume(cy) 2,047 <br /> JOB CONDITION CORRECTION FACTOR <br /> Mine Grade Area per unit length (sf) (3.13) Operator Skill Above Average 0.900 <br /> Mine Grade Volume(cf) (4,606) Material consistency 1.100 <br /> Mine Grade Volume(cy) (171) Dozing method slot 1.200 <br /> Visibility 1.000 <br /> Total Backfill Volume(cf) 50,669 Job Efficiency(50 min/hr) 0.830 <br /> Total Backfill Volume(cy) 1,877 Spoil Pile 1.000 <br /> Slope Length(ft) 31.6 Push Gradient 1.516 <br /> Altitude 1.000 <br /> Material Weight 0.868 <br /> HOURLY PRODUCTION ADJUSTMENT Blade Type(U Blade) 1.000 <br /> Average Push Distance(ft) 31.6 NET CORRECTION 1.2975 <br /> Unadjusted Hourly Production (LCY/hr) 3,180 <br /> Net Correction 1.2975 <br /> Adjusted Fleet Production(LCY/hr) 4,126 <br /> Total Fleet Cost/hr $253.83 <br /> Total Job Time(hr) 0.45 <br /> Total Job Cost($) $115.45 <br /> NOTES <br /> Adjust push distance to reflect site conditions and correct"Unadjusted hourly production". <br /> Make corrections for 3:1 slope <br /> Adjust highwall backfill to a balanced cut and fill. <br /> Adjust operator skill to reflect premium wage and adjust"Net Correction Factor". <br />