Problem 2. You are tasked with constructing a rolled fill with a total volume of 35,000 m^3. The borrow that you will use has soil with w=15%, bulk unit weight= 19.1 kN/m^3; Gs=2.75. The trucks that will move the soil have a capacity of 4.80 m^3. The compaction specification of your construction project are w-18% and dry unit weight=17.3 kN/m^3. a) Assuming that each load is at full capacity, how many truckloads are required to construct the fill? b) What should be the volume of the pit that remains in the borrow area, after all the material required from the fill has been removed? c) How many liters of water will have to be added per truck load, assuming that the moisture lost by evaporation, hauling, and excavation is negligible?

Problem 2. You are tasked with constructing a rolled fill with a total volume of 35,000 m^3. The borrow that you will use has soil with w=15%, bulk unit weight= 19.1 kN/m^3; Gs=2.75. The trucks that will move the soil have a capacity of 4.80 m^3. The compaction specification of your construction project are w-18% and dry unit weight=17.3 kN/m^3. a) Assuming that each load is at full capacity, how many truckloads are required to construct the fill? b) What should be the volume of the pit that remains in the borrow area, after all the material required from the fill has been removed? c) How many liters of water will have to be added per truck load, assuming that the moisture lost by evaporation, hauling, and excavation is negligible?

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

Issues During Construction

Construction is the combination of art, science, and engineering to build buildings, bridges, structures, roadways, highways. airports, etc. The construction business is a challenging and promising business worldwide with certain risk factors involved. Increasing demand for mankind leads to the growth of several construction companies which specialize in different construction projects. These construction companies initiate their construction process under certain agreements and time durations called the construction contract.

Question

• Problem 2. You are tasked with constructing a rolled fill with a total volume of 35,000 m^3. The borrow that you will use has soil with
w=15%, bulk unit weight= 19.1 kN/m^3; Gs=2.75. The trucks that will move the soil have a capacity of 4.80 m^3. The compaction
specification of your construction project are w=18% and dry unit weight=17.3 kN/m^3.
a) Assuming that each load is at full capacity, how many truckloads are required to construct the fill?
b) What should be the volume of the pit that remains in the borrow area, after all the material required from the fill has been removed?
c)
How many liters of water will have to be added per truck load, assuming that the moisture lost by evaporation, hauling, and excavation is
negligible?

Expert Solution

Step 1

Given data:

Required volume of fill $= 35000 m^{3}$

Borrow pit properties:

$w = 15 % γ = 19.1 k N / m^{3} G_{s} = 2.75$

Filling site properties:

$w = 18 % γ_{d} = 17.3 k N / m^{3}$

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