A proposed embankment fill requires 7500 m³ of compacted soil. The void ratio of the compacted fill is specified as 0.7. Soil can be transported from one of the four borrow pits, as described in the following table. The void ratio, specific gravity of soil solids, and the cost per cubic meter for moving the soil to the proposed construction site are provided in the table. Determine the volume of each borrow pit soil required to meet the specification of the embankment site. b. Make the necessary calculations to select the borrow pit which would be most cost-effective. а. Borrow pit Void ratio G, Cost ($/m³) I 0.85 2.66 11 II 0.92 2.69 8 III 1.21 2.71 IV 0.89 2.73 10

A proposed embankment fill requires 7500 m³ of compacted soil. The void ratio of the compacted fill is specified as 0.7. Soil can be transported from one of the four borrow pits, as described in the following table. The void ratio, specific gravity of soil solids, and the cost per cubic meter for moving the soil to the proposed construction site are provided in the table. Determine the volume of each borrow pit soil required to meet the specification of the embankment site. b. Make the necessary calculations to select the borrow pit which would be most cost-effective. а. Borrow pit Void ratio G, Cost ($/m³) I 0.85 2.66 11 II 0.92 2.69 8 III 1.21 2.71 IV 0.89 2.73 10

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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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

Problem 3:
A proposed embankment fill requires 7500 m³ of compacted soil. The void ratio of the compacted fill is
specified as 0.7. Soil can be transported from one of the four borrow pits, as described in the following table.
The void ratio, specific gravity of soil solids, and the cost per cubic meter for moving the soil to the proposed
construction site are provided in the table.
a. Determine the volume of each borrow pit soil required to meet the specification of the embankment site.
b. Make the necessary calculations to select the borrow pit which would be most cost-effective.
Borrow pit
Void ratio
G,
Cost ($/m³)
I
0.85
2.66
11
II
0.92
2.69
8
III
1.21
2.71
9.
IV
0.89
2.73
10

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