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Principles of Geotechnical Enginee...

9th Edition
Braja M. Das + 1 other
ISBN: 9781305970939

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BuyFindarrow_forward

Principles of Geotechnical Enginee...

9th Edition
Braja M. Das + 1 other
ISBN: 9781305970939
Textbook Problem

For a given soil, the following are known: Gs = 2.74, moist unit weight, γ = 20.6 kN/m3, and moisture content, w = 16.6%. Determine:

a. Dry unit weight

b. Void ratio

c. Porosity

d. Degree of saturation

(a)

To determine

Calculate the dry unit weight of soil.

Explanation

Given information:

The specific gravity of the soil solids (Gs) is 2.74.

The moisture content (w) is 16.6%.

The moist unit weight of soil (γ) is 20.6kN/m3.

Calculation:

Calculate the dry unit weight of the soil (γd) using the relation.

γd=γ1+w

Substitute 20.6kN/m3 for γ and 16

(b)

To determine

Calculate the void ratio of soil.

(c)

To determine

Calculate the porosity of soil.

(e)

To determine

Calculate the degree of saturation.

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