A contractor is excavating the below trench. The contractor is supposed to dig the trench 5ft deep and 3ft wide. The soi

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A Contractor Is Excavating The Below Trench The Contractor Is Supposed To Dig The Trench 5ft Deep And 3ft Wide The Soi 1 (91.41 KiB) Viewed 24 times

A contractor is excavating the below trench. The contractor is supposed to dig the trench 5ft deep and 3ft wide. The soil was tested to have an approximately swell factor of 112% and a shrinkage factor of 14%. The contractor is placing a 10" water pipe in the trench and then backfilling with the soil that was removed. The dimensions are on center line. Does the contractor have enough soil to backfill the trench, or will he/she have to need more? If more soil are needed, how much does the contractor need to bring in. Answer in LCY. 40ft 361 |16ft 40ft 1 20ft 2411 60ft formulas LCY BCY LE Thank 7 Table 80.1 Summary of Excavation Soil Factors example value quantity symbol or units swell factor; heaped factor SF 1.20 [bank to loose shrinkage factor: shrink factor DF 0.15 bank to compacted] load factor LF 0.83 floose to bank) fill factor dipper factor; FF 0.85 fillability 1 - CCY 1 - BCY portal BCY LCY nese SE operator factor OF 0.93 occupied volume solid capacity of bucket, dipper, or track actual production ideal production SF x BCY BCY LF LCY 120 yd" Funk BCY loose volume: loose cubic yards compacted volume: compacted cubic yards bank volume bank cubic yards CCY 85 yd" TBCY (1 - DF)BCY (5PF)CY BCY 100 yd LCY SF CCY 1 - DE 20 yd LCY - BCY increase) (SF - 1)BCY 1 - LF LE x BCY swell SWL 20% (SF-1) X 100% 1 - LF LE x 100% 15 yd SHR DF X BCY shrinkage LCY-BCY x 100% BCY (increase) BCY - CCY (decresse) BCY - CCY x 100% BCY (decrease) 15% DF X 100%