BuyFindarrow_forward

Principles of Geotechnical Enginee...

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

Solutions

Chapter
Section
BuyFindarrow_forward

Principles of Geotechnical Enginee...

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

Refer to Problem 3.8. Determine the mass of water (in kg) to be added per cubic meter (m3) of soil for

a. 90% degree of saturation

b. 100% degree of saturation

3.8 The dry unit weight of a soil sample is 14.8 kN/m3. Given that Gs = 2.72 and w = 17%, determine:

a. Void ratio

b. Moist unit weight

c. Degree of saturation

d. Unit weight when the sample is fully saturated

(a)

To determine

Calculate the mass of water to be added per cubic meter of soil.

Explanation

Given information:

The dry unit weight of soil (γd) is 14.8kN/m3.

The moisture content (w) is 17%.

The specific gravity of the soil solids (Gs) is 2.72.

The degree of saturation (S) is 90%.

Calculation:

Consider the unit weight of water (γw) is 9.81kN/m3.

Calculate the void ratio (e) using the relation.

e=Gsγwγd1

Substitute 2.72 for Gs, 14.8kN/m3 for γd, and 9.81kN/m3 for γw.

e=2.72×9.8114.81=26.683214.81=1.81=0.8

Calculate the moist unit weight of the soil (γ) using the relation.

γ=(1+w1+e)Gsγw

Substitute 17% for w, 0.8 for e, 2.72 for Gs, and 9.81kN/m3 for γw.

γ=(1+171001+0.8)×2

(b)

To determine

Calculate the mass of water to be added per cubic meter of soil.

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Engineering Solutions

Find more solutions based on key concepts

Show solutions add

How is intellectual property protected in the United States?

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

What is data independence, and why is it lacking in file systems?

Database Systems: Design, Implementation, & Management

How do you translate business rules into data model components?

Database Systems: Design, Implementation, & Management

Why would a manager prefer a decision tree instead of a decision table?

Systems Analysis and Design (Shelly Cashman Series) (MindTap Course List)

Same as Problem 5.15-7, except that the sag rods are al the third points.

Steel Design (Activate Learning with these NEW titles from Engineering!)

Missing Smartphone You have just returned from the mall and seem to have forgotten your smartphone. You checked...

Enhanced Discovering Computers 2017 (Shelly Cashman Series) (MindTap Course List)