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20-#3 &4 Ajax <br />Ajax Area and Former Pads 3 and 4 - Growth Media Placement and Reclamation <br />Footnotes for summary cost table: <br />'Assumes heavy grading wil be done with conventional D10 or D1ldozere wtlh U blades Mere the push distances are practical <br />Assumes light grading will be done with a Dg dozer on the backfilled areas in Wiklhorse Extension area (rate = 2 hrs/acm) <br />3Growth Medium Replacement Fleet will consist of three 623 Scrapers <br />4Growth Medium will be spread using a D-9 dozer to a depth of 6 inches <br />'Soil analyses will be run on samples of the reclaimed areas to determine optimum fertilizer rates <br />°Ripping and fertilizing will be conducted on the replaced growth medium using a conventional D4 dozer with a cyclone spreader <br />Seeding and harrowing will be conducted on all replaced growth medium that is treversible with conventional equipment <br />°Assumes approximately half the area will require hand-seeding to achieve fevegetation <br />°Mulching will be conducted using conventional hydroseededhydro- mulcher <br />1OTrees and shrubs will be Planted on north and east -facing slopes <br />"Supervisor costs are figured at 25 percent of the total work hours to accomplish the reclamation effort <br />What is empty travel time based on haul distance & rolling resistance (min)? <br />Dozer Productivity <br />Calculation for Heavy Gradinu <br />777F Haul Truck <br />Quantity <br />Comment <br />What is the Total Volume of backfilled rock to be graded? <br />0 <br />Reference Sheet 9 (Average of cut /fill amounts) <br />Source 2 <br />What is the average Haul Distance for all material? <br />100 <br />Feet per Drawing Sheet 9 <br />Total Fleet Hours <br />What is the volume if It were all just 5 fl. grading ? <br />0 <br />Calculated Volume - Area x 5 ft 127 <br />What is the expected average push distance for leveling piles? <br />100 <br />Short Doze to keel out end - dumped truck loads <br />What is the job correction factor for the operator! <br />0.75 <br />Average Operator, Cat Hdbk, 33 Ed, pt-42 <br />What is the job correction factor for the material condition? <br />1.2 <br />Waste rock is loose, Cat Hdbk, 33 Ed, pl-42 <br />What is the job correction factor for job efficiency? <br />0.83 <br />50 minutes operating per hour, Cat Hdbk, 33 Ed, p1 -42 <br />What is the job correction factor for downhill grade pushing? <br />12 <br />Assume conservatively 10% grade, Cat Hdbk, 33 Ed, p1-42 <br />What is the job correction factor for side_ by side dozing? <br />12____ <br />Side_ by side dozing, Cat Hdbk, 33 Ed, p1 -_2 _ _ _- _- _- _ -_ -_ -_ <br />_ _ _________ <br />What is unadjusted production based on push distance for a D10? <br />1,760 <br />_ _ _ _ _ _ <br />cu yds/hr from Regression Equation Developed from Cat Handbook Version 39 <br />Calculated adjusted production based on job factors = <br />1893A <br />cu yds/hr calculated <br />(Calculated D10 Dozer hours In grading <br />_____.___.________________-________________________________ <br />0.00 <br />hours ________- _______________- -____� <br />(What Is unadjusted production based on push distance for a D11? <br />2,729 <br />cu ydslhr from Regression Equation Developed from Cat Handbook Version 39 <br />iCalculated adjusted production based on job factors - <br />2934.1 <br />cu yds/hr calculated i <br />Calculated Dl ll Dozer h_ours_in gred, ng_ -_ -__ _ _ _ <br />_ _ _ _0.0_0 <br />_ hours _ _ _ _ _ _ _ _- _- _- _- _- _- _- _- _- _________ -_� <br />Mass Haul Productivity for Fill Earthwork Exceedina 5 K. Heavy Dozer Levelina of Piles <br />Additional Volume that will be truck hauled <br />543.5 <br />0 Difference between Total Volume and the Volume for leveling 5 ft piles <br />What is the weighted average Haul Distance for the truck haul? <br />0.0 <br />0 Change in Moment arm by removing 5 ft. push = (Vt'HDt Vd'HDd)Nrem <br />What is loaded travel time based on haul distance & rolling resistance (min)? <br />0.0 <br />What is empty travel time based on haul distance & rolling resistance (min)? <br />0.0 <br />777F Haul Truck <br />Productivity <br />What is the manuever time for trucks at the loading area (min)? <br />0.70 <br />Source 2 <br />Source 3 <br />Source 4 <br />What is the length of time l takes a truck to dump (min)? <br />Total Fleet Hours <br />1.00 <br />1,491 <br />0 <br />0 <br />What is the capactiy of the selected truck (avg cu yds)? <br />0 <br />64 <br />Loaded Travel Time <br />1.3 <br />0 .0 <br />Calculated time for loading a truck (min) = <br />0.0 <br />3.00 <br />Regression at 1307.7 feet per min -6% grade <br />Empty Travel Time <br />0.5 <br />Total Cycle Time (Maneuver + Load + Loaded Haul + Empty Haul + Dump) = <br />0.0 <br />4.70 <br />0.0 <br />Regression at 2,724 feet per min - 6% grade <br />Total Cycle Time <br />Calculated number of truckloads per hour = <br />4.7 <br />12.8 <br />4.7 <br />4.7 <br />What is the efficiency of the haulage effort expressed as minutes per hour? <br />9.3 <br />55 <br />12.8 <br />12.8 <br />12.8 <br />Calculated Productivity of Loader/Truck Combination (cu ydsRlour) = <br />Productivity <br />748.9 <br />748.9 <br />748.9 <br />748.9 <br />Total Fleet Hours Required <br />543.5 <br />0.0 <br />34.7 <br />0.0 <br />0.0 <br />0.0 <br />Scraper Productivity <br />34.7 <br />Productivity by Regression Equation <br />335.3 <br />What is the selected equipment to haul growth medium? 623 Scrapers <br />362.9 <br />Source Volume Haul Dist Prod <br />Hours <br />^g <br />How many scrapers will be used? <br />3 <br />GM30 18,876 1,491 253.631559 <br />74 <br />:. <br />What is the area for growth medium replacement? <br />23.0 acres <br />0 <br />0 <br />o <br />What is the thickness of growth medium replacement? <br />0.5 feet <br />0 <br />0 <br />0_ n <br />Calculated quantity of growth medium required = <br />18,560 cu yds <br />0 <br />0 <br />0 <br />0 <br />m <br />Tofal/Average 18,876 1,491 253.831559 <br />74 <br />777F Haul Truck <br />Productivity <br />Source 1 <br />Source 2 <br />Source 3 <br />Source 4 <br />Source 5 <br />Total Fleet Hours <br />Haul Distance <br />1,491 <br />0 <br />0 <br />0 <br />0 <br />Loaded Travel Time <br />1.3 <br />0 .0 <br />0.0 <br />0.0 <br />0.0 <br />Regression at 1307.7 feet per min -6% grade <br />Empty Travel Time <br />0.5 <br />0.0 <br />0.0 <br />0.0 <br />0.0 <br />Regression at 2,724 feet per min - 6% grade <br />Total Cycle Time <br />&5 <br />4.7 <br />4.7 <br />4.7 <br />4.7 <br />Truckloads per hour <br />9.3 <br />12.8 <br />12.8 <br />12.8 <br />12.8 <br />Productivity <br />543.5 <br />748.9 <br />748.9 <br />748.9 <br />748.9 <br />543.5 <br />Fleet Hours Required <br />34.7 <br />0.0 <br />0.0 <br />0.0 <br />0.0 <br />34.7 <br />Productivity by Regression Equation <br />335.3 <br />362.9 <br />362.9 <br />362.9 <br />362.9 <br />