   Chapter 9, Problem 9.11P 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

Refer to Figure 9.4a in which upward seepage is taking place through a granular soil contained in a tank. Given: H1 = 1.5 m; H2 = 2.5 m; h = 1.5 m; area of the tank = 0.62 m2; void ratio of the soil, e = 0.49; Gs = 2.66; and hydraulic conductivity of the sand (k) = 0.21 cm/sec.a. What is the rate of upward seepage?b. Will boiling occur when h = 1.5 m? Explain.c. What would be the critical value of h to cause boiling? (a)

To determine

Find the rate of upward seepage.

Explanation

Given information:

The depth of point A H1 is 1.5 m.

The depth between point A and B H2 is 2.5 m.

The depth (h) is 1.5 m.

The area (A) of the tank is 0.62m2.

The void ratio (e) of the soil is 0.49.

The specific gravity of the soil Gs is 2.66.

The hydraulic conductivity (k) of the soil is 0.21 cm/sec.

Calculation:

Determine the hydraulic gradient i using the relation.

i=hH2

Substitute 1.5 m for h and 2.5 m for H2.

i=1.52.5=0.6

Determine the upward seepage (q) using the relation

(b)

To determine

Explain whether the boiling occurs at 15 m.

(c)

To determine

The critical value of h to cause boiling.

The critical value of h to cause boiling is 2.77m_.

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

What unit of measure is used to define cutting speeds?

Precision Machining Technology (MindTap Course List)

List and describe the different types of databases.

Database Systems: Design, Implementation, & Management

What is a DBMS, and what are its functions?

Database Systems: Design, Implementation, & Management

What is a schema, and how is it used?

Principles of Information Systems (MindTap Course List)

What three characteristics about TCP distinguish it from UDP?

Network+ Guide to Networks (MindTap Course List)

What are the advantages of welded piping systems over other joining methods?

Welding: Principles and Applications (MindTap Course List) 