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<br /> <br /> <br />TASK 5 <br />REPLACE SOIL MATERIAL <br />Material Volume <br /> <br />Approximately 10,000 cy (in-place) or 12,000 cy (loose assuming 20% swell). <br />Equipment and Productivity <br />Use a CAT 627E Tractor Scraper <br />Haul Distance -Approximately 1,000' average one-way at a flat grade (0%) and a rolling <br />resistance of 5% <br />Cycle Times -One-way haul time would be 0.65 min. (loaded) and 0.5 min. (empty). <br />Fixed cycle times (load, dump, and spread) would be approximately 1.0 min. Total cycle <br />time would be approximately 2.15 min. <br />Average Capacity -Approximately 14 cy (loose) <br />Productivity -Approximately 27.9 cycles/hr. or 390 cy (loose)/hr. Using an operating <br />factor of 0.83 (50 min. operation/scheduled hr.) results in an adjusted productivity of 324 <br />cy (loose)/hr. <br />Equipment Hours and Cost <br />Soil material replacement would require 37 scraper hours to complete (4.5 days at 8 hrs. <br />per day). <br />37 hours x ($136.35/hr. (627F Scraper)) _ $5,045 <br />i <br />L-7 <br />Revised May 1998 <br />