   Chapter 3, Problem 3.2P Principles of Geotechnical Enginee...

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

Solutions

Chapter
Section Principles of Geotechnical Enginee...

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

The moist unit weight of a soil is 17.8 kN/m3 and the moisture content is 14%. If the specific gravity of the soil solids is 2.69, calculate the following:a. Dry unit weightb. Void ratioc. Degree of saturation

(a)

To determine

Calculate the dry unit weight of the soil.

Explanation

Given information:

The moist unit weight of soil (γ) is 17.8kN/m3.

The moisture content (w) is 14%.

The specific gravity of the soil solids (Gs) is 2.69.

Calculation:

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

γd=γ1+w

Substitute 17.8kN/m3 for γ and 14% for w

(b)

To determine

Find the void ratio of the soil.

(c)

To determine

Calculate the degree of saturation.

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