X = X CONVERSION FACTOR = ( CYPH) #1-1 Soil Conversion FACTORS SOIL CONVERTED BANK(IN LOOSE COMPACTED FROM PLACE) BANK * 1.11 .95 SAND OR LOOSE .90 * .86 GRAVEL COMPACTED 1.05 1.17 * BANK * 1.25 .90 LOAM LOOSE .80 * .72 COMPACTED 1.11 1.39 * BANK * 1.43 .90 CLAY LOOSE .70 * .63 COMPACTED 1.11 1.59 * ROCK(BLASTED) BANK * 1.50 1.30 LOOSE .67 * .87 COMPACTED .77 1.15 * CORAL BANK * 1.50 1.30 COMPARABLE TO LOOSE .67 * .87 LIMESTONE COMPACTED .77 1.15 * EXAMPLE: What is the production rate in (CCY) for a dump with a basic production rate of 14 lcy/hr, working in loam. 42 X .72 = 30.24 OR 30 LCYPH X CONVERSION FACTOR = (C CYPH) NOTE: ROUND DOWN ( CYPH) (ON SLIDE #221, 222) STEP #10 RATIO OF TRUCKS TO SCOOP LOADER (10) a. The number of trucks to keep one scoop loader moving with no down time is found in the formula below (Ref FM 10-4). tct (tractor cycle time) *From step 6 lct (Loader Cycle Time) + 1 = trucks Req
X = X CONVERSION FACTOR = ( CYPH) #1-1 Soil Conversion FACTORS SOIL CONVERTED FROM BANK(IN PLACE) LOOSE COMPACTED SAND OR GRAVEL BANK LOOSE COMPACTED * .90 1.05 1.11 * 1.17 .95 .86 * LOAM BANK LOOSE COMPACTED * .80 1.11 1.25 * 1.39 .90 .72 * CLAY BANK LOOSE COMPACTED * .70 1.11 1.43 * 1.59 .90 .63 * ROCK(BLASTED) BANK LOOSE COMPACTED * .67 .77 1.50 * 1.15 1.30 .87 * CORAL COMPARABLE TO LIMESTONE BANK LOOSE COMPACTED * .67 .77 1.50 * 1.15 1.30 .87 * EXAMPLE: What is the production rate in (CCY) for a dump with a basic production rate of 14 lcy/hr, working in loam. 42 X .72 = 30.24 OR 30 LCYPH X CONVERSION FACTOR = (C CYPH) NOTE: ROUND DOWN ( CYPH) (ON SLIDE #221, 222) (10) STEP #10 RATIO OF TRUCKS TO SCOOP LOADER a. The number of trucks to keep one scoop loader moving with no down time is found in the formula below (Ref FM 10-4). tct (tractor cycle time) *From step 6 lct (Loader Cycle Time) + 1 = trucks Req