SOIL MECHANICS AND FOUNDATION ENGINEERING
CE 608
Lecture : 3 Year : III
Tutorial : 1 Part : I
Practical : 2
Course Objective:
After completion of this course, the
students will be familiar about the fundamental properties, behaviour of soil
under different load condition and environment around and nature of soil.
1.
Introduction (2
hours)
1.1.
Definition
of soil and Rock
1.2.
Importance
of Soil Mechanics and soil Problems
1.3.
Historical
Development
1.4.
Soil
formation and Soil types
2.
Physical and Index
Properties of Soils (6
hours)
2.1.
Phase
Diagrams
2.2.
Basic
Definition of Phase relationship
2.3.
volume
weight relationships
2.4.
Water
Content Determination
2.5.
Insitu
Unit Weight Determination
2.6.
Index
Properties of Soil
2.7.
soil
Grained and Soil Aggregate Properties of Soil
2.8.
Sieve
Analysis and Sedimentation analysis
2.9.
Relative
Density and Atterberg's Limits
3.
Soil Classification
and Identification (3
hours)
3.1.
Field
identification of Fine and Coarse Grained Soil
3.2.
Soil
Classification as per
3.2.1.
Unified
Soil Classification
3.2.2.
IS
Classification
3.2.3.
MIT,
US Bureau and International classification System
3.2.4.
Textural
Classification System
4.
Soil-Water Integration (4 hours)
4.1.
Type
of Soil Water
4.2.
Flow
of Water Through Soil Mass-Darcy's Law
4.3.
Permeability
of Soils
4.4.
Permeability
of Stratified Soil Deposits
4.5.
Determination
of Coefficient of Permeability of soil by Laboratory and Field Methods
5.
Soil Compaction (3
hours)
5.1.
Definition
of Compaction
5.2.
Factors
Affecting compaction
5.3.
Engineering
Significance of Compaction
5.4.
Moisture-Density
Relationship and Degree of Compaction
5.5.
Zero
air Soil Line
5.6.
Laboratory
test
5.7.
Field
Compaction and Compaction Control
6.
Principle of
Effective Stress (5
hours)
6.1.
Stress
in subsoil
6.2.
Effective
Stress Principle / Physical meaning of Effective Stress
6.3.
Computation
of Effective Stress for the Static and Flow conditions
6.4.
Capillarity
in soils
6.5.
Quick
sand Condition and Remedial Measures
6.6.
Seepage
Pressure
6.7.
Flow
Nets and their application
7.
Shear Strength of
Soils (5
hours)
7.1.
Concept
of Shear Strength
7.2.
Principle
Planes and Principle Stresses
7.3.
Mohr's
Stress circle and Failure Envelope
7.4.
Mohr-Coulomb
theory of Shear Strength
7.5.
Relation
Between Principle Stresses at Failure
7.6.
Critical
Void ratio
7.7.
Types
of Shear Tests
7.8.
Measurement
of Shear Strength in Laboratory
8.
Consolidation and
Settlement (4
hours)
8.1.
Difference
between compaction and Consolidation
8.2.
Type
of Earth Pressure
8.3.
Effect
of Wall Movement on Earth Pressure
8.4.
Tarzaghi's
Piston Spring Analogy for Primary Consolidation
8.5.
Consolidation Tests
8.6.
Pressures-Void
Relationship
8.7.
Settlement
Calculation
9.
Earth Pressure (5
hours)
9.1.
Introduction
to Earth Pressure
9.2.
Types
of Earth Pressure
9.3.
Effect
of Wall Movement on Earth Pressure
9.4.
Rankine's
Earth Pressure Theory
9.5.
Computation
of Active and Passive Earth Pressure on Backfill by Rankine's Theory
9.6.
Coulomb's
Earth Pressure Theory
9.7.
Stability
Analysis on Earth Retaining Structures
10.
Foundation (3
hours)
10.1.
Definition
and Types of Foundation
10.2.
Types
of Shallow and Deep Foundation
10.3.
Functions
of Foundation
10.4.
Location
and Depth of Foundation
10.5.
Factors
Affecting Types of foundation
10.6.
Concept
of Spread and Mat Foundation
10.7.
Site
Investigation for Foundation
11.
Bearing Capacity
and Settlement of Shallow Foundations (5
hours)
11.1.
Basic
Definition
11.2.
Factors
Affecting Bearing Capacity
11.3.
Types
of Shear Failures
11.4.
Tarzaghi's
General Bearing Capacity Theory
11.5.
Ultimate
Bearing Capacity in Cohesive and Cohesion less Soils
11.6.
Foundation
settlement
11.7.
Insitu
Test of Bearing Capacity
Tutorials
1. Numerical Problems
on three phase diagrams of soils.
2. Numerical Problems
on soil water and permeability of soils.
3. Numerical Problems
on soil compaction
4. Numerical Problems
on effective stress
5. Numerical Problems
on shear strength of soils
6. Numerical
Problems on Press void relationship and settlement due to primary consolidation
of soils
7. Numerical Problems
on earth pressure and stability analysis of retaining structure
8. Numerical problems
on bearing capacity of soils.
Laboratories:
1. Determination of
Water Content by oven drying method
2. Determination of
Water Content by pycnometer method
3. Determination of specific
gravity by pycnometer method
4. Determination of
field density by core cutter methods
5. Determination of
field density by sand replacement methods
6. Sieve analysis of
coarse grained Soil
7. Hydrometer analysis
of fine grained soil
8. Determination of
liquid limit and plastic limit of fine grained soil
9. Determination of
coefficient of permeability by constant head and variable head permeameter test
method
10.
Proctor
compaction test of soil
11.
Unconfined
compression test of soil
12.
Direct
shear test of soil
References:
1. Basic and Applied
Soil Mechanics by Gopal Rajan; New Age International (P) Limited
2. Soil Mechanics and
Foundation Engineering by b.C. Punmia. Laxmi Publications Pvt. Ltd.
3. A Textbook of soil
Mechanics and Foundation Engineering by V.N.S Murthy. UBS Publishers and
Distributors.
4. Soil Mechanics and Foundation
'Engineering by K.R. Arora. Standard Book House, New Delhi.
Evaluation
Scheme:
The
questions will cover all the chapters of the syllabus. The evaluation scheme
will be as indicated in the table below
|
Chapter
|
Hours
|
Mark
Distribution*
|
|
1
|
2
|
16
|
|
2
|
6
|
|
|
3
|
3
|
16
|
|
4
|
4
|
|
|
5
|
3
|
|
|
6
|
5
|
8
|
|
7
|
5
|
8
|
|
8
|
4
|
8
|
|
9
|
5
|
8
|
|
10
|
3
|
16
|
|
11
|
5
|
|
|
Total
|
45
|
80
|
* There could be a minor deviation in the
marks distribution
Ø
The
questions setting should be in the multiplication of either 8 or 10.
source: Department Of Agricultural Engineering
5 Differences between Compaction and Consolidation of Soil
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