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East Cresson Overburden Storage Area <br />Footnotes for summary cost table: <br />'Assumes heavy grading will be done with conventional D10 or Dl dozers with U blades where the push distances are practical <br />Assumes light grading will be done with a Dg dozer on the backrilled areas in Wldhorse Extension area (rate = 2 hmmcre) <br />'Growth Medium Replacement fleet will consist of three 623 Scrapers <br />'Growth 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 fertazing 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 traversole with conventional equipment <br />"Assumes approximately hat the area will require hand - welling to achieve revegetation <br />"Mulching will be conducted using conventional hydro- seeder/hyd-ulther <br />'°Trees and shrubs WE 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 />Dozer Productivity <br />Calculation for Heaw Gradim <br />Source volume Haul Dist Prod Hours <br />Quantity <br />Comment <br />What is the Total Volume of bac-d rock to be graded? <br />5,255,998 <br />Reference Sheet 9 (Average of cut/fill amounts) <br />15,096 <br />Whet is the average Haul Distance for all material? <br />664 <br />Feet per Drawing Sheet 9 <br />1, p <br />What is the volume t it were all just 5 ft. grading ? <br />5,255,996 <br />Calculated Volume =Area x 5 ft 127 <br />What is the expected average push distance for leveling piles? <br />100 <br />Short Dore to level out end-dumped truck bads <br />What is the job correction factor for the operator? <br />0.75 <br />Average Operator, Cat Hdbk, 33 Ed, p142 <br />What is the job correction factor for the material condition? <br />1.2 <br />Waste rock is loose. Cat Hdbk, 33 Ed, p142 <br />What is the job correction factor for job efficiency? <br />0.63 <br />50 minutes operating per hour, Cat Hdbk, 33 Ed, p142 <br />What is the job correction factor for downhill grade pushing? <br />1.2 <br />Assume conservativety 10% grade, Cat Hdbk, 33 Ed, p142 <br />What is the job correction factor for sitle by side dozing ?_ <br />1.2 <br />Side Dy side dozing, Cat Hdbk, 33 Etl,p14_2 <br />_ _ _ _ _ _ ___________ <br />rWhet is unadjusted production based on push distance for a D10? 1,760 -cu ychi from Regression Equation Developed from Cat Handbook Version 39 - <br />,Calculated adjusted production based on job factors = <br />1803.4 <br />cu yda/nr calculated <br />Calculated D70 Dozer hours in grading = 2776.02 hours <br />_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_---------_-_-_-_-_-_-_-_-_- _- _- _- _- _- _- _- _- _- _----- - -_ -_� <br />Whet is unadjusted production based on push distance for a D11? <br />2,728 <br />cu yds/hr from Regression Equation Developed from Cat Handbook Version 39 <br />Calculated adjusted production based on job factors= <br />2034.1 <br />cu yds/hr calculated <br />LCalculated D10 Dozer hours in grading = 1791.38 hours <br />- - - - - - -- - -- ------ -------- - - - - -- - - - --- ------------- ---- ---- -- ------ -------- - - - - -� <br />Mass Haul Productivity for Fill Earthwork Exceedina 5 <br />R. Heaw Dozer Levelirw of Piles <br />Additional Volume that will be truck hauled <br />rcthtly <br />0 Difference between Total Volume and the Volume for leveling 5 n piles <br />What is the weighted average Haul Distance for the truck haul? <br />349.0 <br />564 Change in Moment arm by removing 5 R. push - WrHDt- Vd'HDdyVrem <br />What is loaded travel time based on haul distance & rolling resistance (min)? <br />440.1 <br />0.5 <br />What Is empty travel time based on haul distance & rolling resistance (min)? <br />46.3 <br />0.2 <br />What Is the manuever time for trucks at the loading area (min)? <br />115.6 <br />0.70 <br />What Is the length of time t takes a truck to dump (min)? <br />1.00 <br />What is the capacity of the selected truck (avg cu yds)? <br />64 <br />Calculated time for loading a truck (min) = <br />3.00 <br />Total Cycle Time (Maneuver+ Load + Loaded Haul + Empty Haul + Dump) = <br />5.37 <br />Calculated number of truckloads per hour = <br />11.2 <br />What is the efficiency of the haulage effort expressed as minutes per hour? <br />55 <br />Calculated Productivity of Loader/Tmck Combination (cu yds / hour) = <br />655.2 <br />Total Fleet Hours Required <br />0.0 <br />What is the selected equipment to haul growth medium? <br />How many scrapers will be used? <br />Scraper Productivity <br />623 Scrapers <br />3 <br />Source volume Haul Dist Prod Hours <br />3 <br />a <br />GM37 29,124 3,954 120.281 242 <br />What is the area for growth medium replacement? <br />467.6 acres <br />GM38 <br />15,096 <br />5,120 <br />98.7124 <br />153 <br />1, p <br />What s the thickness of growth medium replacement? <br />0.5 feet <br />GM6-7 <br />98,950 <br />4,518 <br />108.616 <br />811 <br />n a <br />Calculated quantity of growth medium required = <br />377,119 cu yds <br />GM11a <br />171,700 <br />1,001 <br />343.889 <br />499 <br />ty Travel Time <br />1.4 <br />1.8 <br />GM31 <br />42,000 <br />4,188 <br />115.102 <br />365 <br />e <br />TotailAverage <br />356,870 <br />2,274 <br />183.638 <br />1,805 <br />,bads per hour <br />6.4 <br />16-E Cres OSA <br />3/21/2014 <br />777F Haul Truck Productivity <br />Total Fleet <br />Source 1 <br />Source 2 <br />Source 3 <br />Source 4 <br />Source 5 <br />Hours <br />Distance <br />3,954 <br />5,120 <br />4,518 <br />1001 <br />4,188 <br />led Travel Time <br />3.3 <br />4.3 <br />3.8 <br />0.8 <br />3.5 <br />egression at 1307.7 feet per min - 6%grade <br />ty Travel Time <br />1.4 <br />1.8 <br />1.6 <br />0.4 <br />1.5 <br />Regression at 2,724 feet per min -6 %grade <br />Cycle Time <br />9.4 <br />10.8 <br />10.1 <br />5.9 <br />9.7 <br />,bads per hour <br />6.4 <br />5.6 <br />5.9 <br />10.2 <br />6.2 <br />rcthtly <br />373.9 <br />325.8 <br />349.0 <br />597.3 <br />363.2 <br />440.1 <br />Hours Required <br />77.9 <br />46.3 <br />283.5 <br />287.5 <br />115.6 <br />810.8 <br />16-E Cres OSA <br />3/21/2014 <br />