Answered: What is the classification of Earth…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

What is the classification of Earth Fill Dams?

Expert Solution

Step 1

Earthfill dams are one of the most popular dam type constructed to any height.

Step 2

They are constructed as a non-overflow section having separate spillway.

Step 3

The classification of Earth Fill Dams is as follows:

1. On the basis of construction method:

Rolled fill earth dams
Hydraulic fill dam

Step 4

2. On the basis of mechanical characteristics of earth materials which make up the dam section:

Homogeneous earth dams
Non-Homogeneous (zoned) earth dams: They are further classified into 4 categories namely non-homogeneous having inclined impervious zone of artificial material, having impervious zone of soil with low permeability, having central core soil material of low permeability and having a central thin diaphragm of impervious material.

Step 5

Rolled fill earth dams:

Successive layers of damp or moistened soils are laid over one another in this kind of dam. At optimum moisture content, each layer not beyond 20 cm in thickness is adequately consolidated, only then is the next layer laid out.

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