A proposed earth embankment requires 60,000 cubic meters of soil. The soil will be compacted to a void ratio of 0.85. Two borrow pits designated as A and B are available near the site. The void ratio of the soil in each pit and the estimated cost per cubic meter for moving the soil to the site are as shown below. Pit Void Ratio Cost ($/m3) A 1.10 5.00 B 1.80 3.70 Which will have the lowest cost to move and be the most economical to use?

A proposed earth embankment requires 60,000 cubic meters of soil. The soil will be compacted to a void ratio of 0.85. Two borrow pits designated as A and B are available near the site. The void ratio of the soil in each pit and the estimated cost per cubic meter for moving the soil to the site are as shown below. Pit Void Ratio Cost ($/m3) A 1.10 5.00 B 1.80 3.70 Which will have the lowest cost to move and be the most economical to use?

Fundamentals Of Construction Estimating

4th Edition

ISBN:9781337399395

Author:Pratt, David J.

Publisher:Pratt, David J.

Chapter4: Measuring Site Work, Excavation, And Piling

Section: Chapter Questions

Problem 4RQ

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Concept explainers

Pricing Excavation and Backfill

Backfill, in construction, is the activity of returning the soil and gravel that are removed during building construction or using them again to toughen and support the foundation of the building or any other structural component.

Question

Pit	Void Ratio	Cost ($/m³)
A	1.10	5.00
B	1.80	3.70

Which will have the lowest cost to move and be the most economical to use?

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