Please show work. Thank You Answers: Problem 1: Total Excavation Volume: 18174 y

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Please show work. Thank You

Answers:

Problem 1: Total Excavation Volume: 18174 yd^3 Weight: 34349 tons

Probem 2: 2484 Truck loads

Problem 1. Calculate the volume of soil to be removed by completing the table below The average in-situ soil density is 140 pcf. The excavated material is silty soil with a 35% swell factor Cross-sectional Area (square feet) 300 Distance Volume Station Number (feet) (cubic yards) 0+00 1+50 430 4+30 520 5+00 600 7+00 650 8+40 490 9+40 400 Total Excavation (bank cubic yards) Total Weight of Excavated Material (tons) Problem 2. Using the information obtained in Problem 1, when the truck limits are 14 tons and 10 cubic yards, how many truckloads will be required to remove all of the excavated material from the job site? Show your work.

Explanation / Answer

Please verify answers. Frmulas and method is given below

1.)

Volume = (A1 + A2)/2 * Distance

Total volume of excavation (BCY) = 17638.87 yd3

Total weight = 476250*140 lb = 66675000 lb = 33375.5 tons.

2.) LCY = BCY/(1-swell) = 17638.87/0.65 = 27136.72 yd3
Number of trucks required = 27136.72/10 = 2714

Station Area Distance Volume ft2 ft ft3 yd3 0+00 300 0 0 0 1+50 430 150 54750 2027.776 4+30 520 280 133000 4925.921 5+00 600 70 39200 1451.85 7+00 650 200 125000 4629.625 8+40 490 140 79800 2955.553 9+40 400 100 44500 1648.147 Total 476250 17638.87

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