A proposed embankment fill requires 5000 m² of compacted soil. The specification requires dry unit weight of 18 kN/m, the specific gravity of soil is 2.70. Four borrow pits are available, as described in the following table, which lists the properties of the soil and the cost per m for moving the soil to the proposed construction site. Assume the specific gravity of the soil is 2.70 in each borrow pit. Unit Weight (kN/m³) Moisture Content (%) Cost (Pesos/m) Borrow Pit A 15.8922 11 855 B 13.2435 15 645 17.658 20 765 D 20.3067 15 945 13. Which of the following borrow pit will give the lowest cost for the embankment (indicate the amount)? Example Format: A-5 000 000

A proposed embankment fill requires 5000 m² of compacted soil. The specification requires dry unit weight of 18 kN/m, the specific gravity of soil is 2.70. Four borrow pits are available, as described in the following table, which lists the properties of the soil and the cost per m for moving the soil to the proposed construction site. Assume the specific gravity of the soil is 2.70 in each borrow pit. Unit Weight (kN/m³) Moisture Content (%) Cost (Pesos/m) Borrow Pit A 15.8922 11 855 B 13.2435 15 645 17.658 20 765 D 20.3067 15 945 13. Which of the following borrow pit will give the lowest cost for the embankment (indicate the amount)? Example Format: A-5 000 000

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

A proposed embankment fill requires 5000 m² of compacted soil. The specification requires dry unit
weight of 18 kN/m, the specific gravity of soil is 2.70. Four borrow pits are available, as described in the
following table, which lists the properties of the soil and the cost per m for moving the soil to the
proposed construction site. Assume the specific gravity of the soil is 2.70 in each borrow pit.
Borrow Pit
Unit Weight (kN/m³)
Moisture Content (%)
Cost (Pesos/m')
A
15.8922
11
855
B
13.2435
15
645
17.658
20
765
20.3067
15
945
13. Which of the following borrow pit will give the lowest cost for the embankment (indicate the
amount)? Example Format: A -5 000 000

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A proposed earth fill for a construction of a US highway requires 371,000 cubic feet of soil. The soil will be compacted to a void ratio of 0.75 when it will be placed on the fill. There are 5 borrow pits (see table below). Which barrow pit will have the highest volume of soil for the project and what is the volume in cubic meters? Which borrow pit will provide the least cost, and how much is it?
Embankment is to be built with 15 km length of proposed road with 2 m height of road embankment. The cross sectional area of embankment and distance of borrow pit from embankment are 30 m² and 10 km respectively. Soil is to be compacted to 97 % of the max dry density. Information given as follows: (a) Results from laboratory compaction test: Max dry density-1.80 Mg/m³ Optimum water content=12% (b) Borrow material: Dry density-1.70 Mg/m² Water content-8% Calculate volume of additional water required for the entire volume of the embankment Final answer should be = 27, 486 m³
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3. please answer correctly and show the solution
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