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f'OUn d. r ffL~r I/I p~ 1~ G~~~.,~~~ n 1 ( ~~ I ~ C c.-rte f: TnsK ~4. <br />Colorado Division of Minerals and Geology <br />ESTIMATING FORM BULLDOZER WORK <br />Task S: la Prep. by: S55 Task File Name: M143.1a <br />Date: 11/20/95 Permit A:M-80-143 Mine: Texas Lreek Gravel Pit <br />-------- ------------------- <br />Permit Action; Recalculated Bond for Technical Revision No. 2 <br />Task Description: Backfill Highwall From Above <br />HOURLY EpUIPMENT COST <br /> Basic Machine: Cat DBN Horsepower: 285 <br /> Blade Type: SEMI-UNIVERSAL ----- <br /> Attachment N1: ROPS Cab Shif t Bas is: 1/day <br /> Attachment N2: 3-shank ripper -------- <br />Cost Breakdown: <br />------------ Utilization X <br />Ownership costlhr f46.40 N/A <br />Operating b overhau l cost/hr- dozer = 551.67 100 <br /> -ripper = f2.01 30 <br />Operator cost/hr 322.95 N/A <br />Total egpt. unit cost/hr = (123.03 Total fleet <br />-- --- cost/hr : f123.03 <br />----- <br />MATERIAL QUANTITIES <br />Initial Swell Loose <br />Volume: 3,333.0 LCY Factor: 1.125 Volume: 3,749.6 LCY <br />Source of quantity take-off: Assume backfill of 30'x300' highwall to 3 :1 <br />Source of est. swell factor: CAT Handbook <br />HOURLY PRODUCTION <br /> Job Condition Correction Factors <br />Avg. push distance: 50 ft. ----------------------- --- --- <br /> --------- Operator.......... 0. 75 (avg.) <br />Unadjusted hourly Mat. consistency.. 0. 80 (Cat tbl) <br />dozer production: 1180 LCY/hr Dozing method..... 1. 00 (gen.) <br /> ----^ Visibility........ 1. 00 (avg.) <br />Material consistency : Job efficiency.... 0. 83 (lsh/day) <br />Dry, non-cohesive Spoil pile factor. 1. 00 (doz-oc) <br />------------------- -------- ------- Push gradient..... 1. 35 (Lat tbl) <br />Avg. push gradient: 16.00 X (neg) Altitude deration. 1. 00 (Cat tbl) <br /> Material weight... 0. 11 (Cat tbl) <br />Avg. site altitude: 7300 ft. Blade type........ 1. 00 (S.SU.U) <br />Material weight 3250.00- lb/LCY Net Job Correction 0. 48 <br />Mat. Descr.: - ---- --- - <br />Gravel - Pitrun Adjusted Unit Prod.: 560. 57 LCYfhr <br /> Adjusted Fleet Production: 560. 57 LCY/hr <br />JOB COST ---- ----- -- <br />Fleet size : 1 Dozers) Total Job Time: 6. 69 Hours <br />Unit Cost f0.219 /LCY Total Job Cost: SB22. 92 <br />