Engineering, 03.03.2020 00:35 joshuaburton773

Two choices for borrow soil are available:
It will be necessary to fill a 200 000 yd3 depression, and the fill material must be compacted to 95% of the standard Proctor (maximum) density. A final 10% moisture content is desired in either case. (a) What is the minimum volume of borrow from each site needed to fill the depression? (b) What is minimum quantity (volume) of material from each site to haul? (c) What soil would be cheaper to use?

Borrow A Borrow B
115pcf Density in place 1 20pcf
? Density in transport 95
0.92 Void ratio in transport ?
25% Water content in place 20%
$ 0.20/yd^3 Cost to excavate $ 0.10/yd^3
$ 0.30/yd^3 Cost to haul $ 0.40/yd^3
2.7 Gs 2.7
112 pcf Maximum proctor dry density 110A 200000 yd^3 depression is to be filled, and the fill material must be compacted to 95% of the standard Proctor (maximum) density. A final 10% moisture content is desired in either case. (a) what is the minimum volume of borrow from each site needed to fill the depression? (b) What is minimum quantity (volume) of material from each site to haul? (c) What soil would be cheaper to use?

Answers: 3

Show answers

Another question on Engineering

Engineering, 04.07.2019 18:10

An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0

Answers: 3

Answer

Engineering, 04.07.2019 18:10

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.

Answers: 3

Answer

Engineering, 04.07.2019 18:20

Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms

Answers: 2

Answer

Engineering, 04.07.2019 18:20

Asimple rankine cycle uses water as the working fluid. the water enters the turbine at 10 mpa and 480c while the condenser operates at 6 kpa. if the turbine has an isentropic efficiency of 80 percent while the pump has an isentropic efficiency of 70 percent determine the thermal efficiency

Answers: 1

Answer

You know the right answer?

Two choices for borrow soil are available:
It will be necessary to fill a 200 000 yd3 depressi...

Questions