Chapter 12, Problem 12.1CTP

### Principles of Geotechnical Enginee...

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

Chapter
Section

### Principles of Geotechnical Enginee...

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

To determine

Draw the stress paths for each test in the pq space and also establish the failure line going through the origin and connecting the failure points.

Explanation

Find the major effective principal stress (σ1) as shown below:

σ1=σ3+(Δσd)f (1)

Here, σ3 is chamber pressure and (Δσd)f is deviator stress at failure.

Substitute 150kN/m2 for σ3, 527kN/m2 for (Δσd)f in Equation (1).

σ1=527+150=677kN/m2

Find the effective stress at failure (pf) using the relation:

pf=13(σ1+2σ3) (2)

Here, σ3 and σ1 minor and major effective principal stress at failure.

Substitute 677kN/m2 for σ1 and 150kN/m2 for σ3 in Equation (2).

pf=13(677+2(150))=13×977=325

To determine

Find the combinations of confining pressure and deviator stress applied to the triaxial specimen at O, P, and A in order to follows the stress path O-P-A.

### 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