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

The results of two consolidated-drained triaxial tests on a clayey sand are given here.

images

Calculate the shear strength parameters of the soil.

To determine

Find the shear strength parameters of the soil.

Explanation

Given information:

Specimen 1.

The chamber pressure, σ3 70kN/m2.

The deviator stress is (σ1σ3)f is 155kN/m2

Specimen 2.

The chamber pressure, σ3 140kN/m2.

The deviator stress is (σ1σ3)f 265kN/m2

Calculation:

Show the expression to find the major effective principal stress for specimen 1 as shown below:

σ1=σ3tan2(45+ϕ2)+2c(45+ϕ2) (1)

Here, σ3 and σ1 minor and major effective principal stress, ϕ is angle of friction, and c is cohesion.

Substitute σ3+(Δσd)f for σ1 in Equation (1).

σ3+(Δσd)f=σ3tan2(45+ϕ2)+2c(45+ϕ2) (2)

Substitute 70kN/m2 for σ3 and 155kN/m2 for (Δσd)f in Equation (2).

70+155=70tan2(45+ϕ2)+2c(45+ϕ2)225=70tan2(45+ϕ2)+2c(45+ϕ2) (3)

Find the angle of friction using Equation (2) as follows:

Substitute 140kN/m2 for σ3 and 265kN/m2 for (Δσd)f in Equation (2)

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

What is a compounding interest rate?

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

What kind of data and information can be found using a packet .sniffer?

Principles of Information Security (MindTap Course List)

What are some basic database functions that a spreadsheet cannot perform?

Database Systems: Design, Implementation, & Management

What is metadata?

Database Systems: Design, Implementation, & Management

What does AISI stand for?

Precision Machining Technology (MindTap Course List)

Define a method, and provide three examples.

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

The two forces of magnitude F=30kN form a couple. Determine the corresponding couple-vector.

International Edition---engineering Mechanics: Statics, 4th Edition

Antivirus Program Not Updating You are attempting to update your antivirus program with the latest virus defini...

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