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 spec- ification of the embankment site. b. Make the necessary calculations to select the borrow pit which would be most cost-effective. Borrow pit Void ratio GS Cost ($/m³) I 0.85 2.66 11 II 0.92 2.69 III 1.21 2.71 9 IV 0.89 2.73 10 Q

Principles of Foundation Engineering (MindTap Course List)
9th Edition
ISBN:9781337705028
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter2: Geotechnical Properties Of Soil
Section: Chapter Questions
Problem 2.7P
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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 spec-
ification of the embankment site.
b. Make the necessary calculations to select the borrow pit which would be
most cost-effective.
Borrow pit
Void ratio
GS
Cost ($/m³)
I
0.85
2.66
11
II
0.92
2.69
III
1.21
2.71
9
IV
0.89
2.73
10
Q
Transcribed Image Text:A proposed embankment fill requires 7500 m³ of compacted soil. The void ratio of the compacted fill is specified as 0.7. Soil can be transported from one of the four borrow pits, as described in the following table. The void ratio, specific gravity of soil solids, and the cost per cubic meter for moving the soil to the proposed construction site are provided in the table. a. Determine the volume of each borrow pit soil required to meet the spec- ification of the embankment site. b. Make the necessary calculations to select the borrow pit which would be most cost-effective. Borrow pit Void ratio GS Cost ($/m³) I 0.85 2.66 11 II 0.92 2.69 III 1.21 2.71 9 IV 0.89 2.73 10 Q
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