Geotechnical Engg.


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GEOTECHNICAL ENGG.

Chapter-1 Soil and soil mechanics

Introduction

Development of soil mechanics

Fields of application of soil mechanics

Soil formation

Residual and transported soils

Some commonly used soil designations  

Structure of soils

Texture of soils

Major soil deposits of India

Summary of main points

References

Questions

Chapter-2 Composition of soil-terminology and definitions

 Composition of soils

Basic terminology

Certain important relationships

Illustrative examples

Summary of main points

References

Questions and problems

 

Chapter-3 Index properties and classification tests

Introduction

Soil colour

Particle shape

Specific gravity of soil solids

Water content

Density index

In-situ unit weight

Particle size distribution (mechanical analysis)

Consistency of clay soils

Activity of clays

Illustrative examples

Summary of main points

References

Questions and problems

Chapter-4 Identification and classification of soils

Introduction

Field identification of soils

Soil classification-the need

Engineering soil classification-desirable features

Classification systems more common ones

Illustrative examples

Summary of main points

References

Questions and problems

 Chapter-5 Soil moisture-permeability and capillarity

Introduction

Soil moisture-modes of occurrence

Neutral and effective pressures

Flow of water through soil-permeability

Determination of permeability

Factors affecting permeability

Values of permeability

Permeability of layered soils

Capability

Illustrative examples

Summary

Chapter-6 Seepage and flow nets

Introduction

Flownet for one-dimensional flow

Basic equation for seepage

Seepage through no homogeneous and anisotropic soil

Top flow line in an earth dam

Radial flow nets

Methods of obtaining flow nets

Quick sand

Seepage forces

Effective stress in a soil mass under seepage

Illustrative problems:

Summary of main points

References

Questions and problems

Chapter-7 Compressibility and consolidation of soils

Introduction

Compressibility of soils

A mechanistic model for consolidation

Terzaghi’s theory of one-dimensional consolidation

Solution of terzaght’s equation for one-dimensional consolidation

Graphical presentation of consolidation relationships

Evaluation of coefficient of consolidation from ocdometer  test data

Secondary consolidation

Illustrative examples

Summary of main points

References

Questions and problems

Chapter-8 Shearing strength of soils

Introduction

Friction

Principle planes and principal stresses-mohr’s circle

Strength theories for soils

Shearing strength-a function of effective stress

Hvorslev’s true shear parameters

Types of shear tests based on drainage conditions

Shearing strength tests

Pore pressure parameters

Shearing characteristics of sands

Shearing characteristics of clays

Illustrative examples

Summary of main points

References

Questions and problems

Chapter-9 Stability of earth slopes

Introduction

Infinite slopes

Finite slopes

Illustrative examples

Summary of main points

References

Questions and problems

Chapter-10.  Stress distribution in soil

Introduction

Point load

Line load

Strip load

Uniform load on circular area

Uniform load  on rectangular area

Uniform load on irregular areas-new mark’s chart

Approximate methods

Illustrative examples

Summary of main points

References

Questions and problems

Chpater-11 Settlement analysis

Introduction

Data for settlement analysis

Settlement

Corrections to computed settlement

Further factors affecting settlement

Other factors pertinent to settlement

Settlement records

Contact pressure and active zone from pressure bulb concept

Illustrative examples

Summary of main points

References

Questions and problems

Chapter-12 Compaction of soils

Introduction

Compaction phenomenon

Compaction

Saturation live

Laboratory compaction tests

In-suits or field compaction

Compaction of sand

Compaction versus consolidation

Illustrative examples

Summary of main points

References

Questions and problems

 

 Chapter-13 Lateral earth pressure and stability of retaining walls

Introduction

Types of earth-retaining structures

Lateral earth pressures

Earth pressure at rest

Earth pressure theories

Rankine’s theory

Coulomb’s wedge theory

Stability considerations for retaining walls

Illustrative examples

Summary of main points

References

Questions and problems

Chapter-14 Bearing capacity

Introduction and definitions

Bearing capacity

Methods of determining bearing capacity

Bearing capacity from building codes

Analytical methods of determining bearing capacity

Effects of water table on bearing capacity

Safe bearing capacity

Foundation settlements

Plate load tests

Bearing capacity from penetration tests

Bearing capacity from model tests-housel’s approach

Bearing capacity from laboratory tests

Bearing capacity of sands

Bearing capacity of clays

Recommended practice

Illustrative examples

Summary of main points

References

Questions and problems

Chapter-15 Shallow foundations

Introduction concepts on foundations

General types of foundations

Choice of foundation type and preliminary selection

Spread footing

Strap footing

Combined footing

Raft foundations

Foundations on non-uniform soils

Illustrative examples

Summary of main points

References

Questions and problems

Chapter-16 Pile foundations

Introduction

Classification of piles

Use of piles

Pile driving

Pile capacity

Pile groups

Settlement of piles and pile groups

Laterally loaded piles

Batter piles

Design of pile foundations

Construction of pile foundations

Illustrative examples

Summary of main points

References

Questions and problems

Chapter-17 Soil stabilization

Introduction

Classification of the methods of stabilization

Stabilization of soil with additives

California bearing ratio

Illustrative examples

Summary of main points

References

Questions and problems

Chapter-18 Soil exploration

Introduction

Site investigation

Soil exploration

Soil sampling

Sounding and penetration tests

Indirect methods-geophysical methods

Illustrative examples

Summary of main points

References

Questions and problems

Chapter-19 Caissons and well foundations

Introduction

Design aspects of caissons

Open caissons

Pneumatic caissons

Floating caissons

Construction aspects of caissons

Illustrative examples on caissons

Well foundations

Design aspects of well foundations

Lateral stability of well foundations

Construction aspects of well foundations

Illustrative examples on well foundations

Summary of main point

References

Questions and problems

Chapter-20 elements of soil dynamics and machine foundations

Introduction