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Project. Pikeview Quarry <br /> Date Dec-2019 <br /> WORKSHEET NO. 8A <br /> PRODUCTIVITY AND HOURS REQUIRED FOR LOADER USE <br /> Earthmoving Activity: <br /> 3 Trucked From Borrow Area to Fill Area <br /> Characterization of Loader Used (type, size, etc.)3 <br /> 345 with 5 yd bucket <br /> Description of Loader Use (origin, destination, grade,haul distance, etc.) <br /> 0.95 Bucket Fill Factor <br /> 5 Rated Bucket Capacity[LCY] <br /> Productivity Calculations3 <br /> Cycle Time = + + 0.5 min = 0.50 min <br /> loaded haul empty haul time basic cycle time <br /> time <br /> Net Bucket = 5 LCY 0.95 = 4.8 LCY <br /> Capacity heaped bucket bucket fill factor <br /> capacity <br /> Net Hourly = 4.8 LCY / 0.50 min 50 min/hr = 475 LCY/hr <br /> Production net bucket capacity cycle time work hour <br /> factor <br /> Hours = 3,260,606 LCY / 475 LCY/hr = 6,864 hrs <br /> Required2 volume to be moved' net hourly <br /> production <br /> Data Sources: <br /> 1) Volume to be moved from Worksheet 3 <br /> 2) Hours required go to Worksheet 13 <br /> 3) Caterpillar Performance Handbook, Edition 37 <br />