Principles of geotechnical engineering / Braja M. Das

Contents

1. Soil and Rocks
Preview
Rock cycle and the origin of soil
Soil-particle size
Clay minerals
Specific gravity
Mechanical analysis of soil
etc.

2. Weight-volume relationship, plasticity and structure of soil
Weight-volume relationships
Relationships among unit weight Void ratio, moisture content, and specific gravity
Various unit- weight relationship
Relative density
Consistence of soil
etc.

3. Classification of soil
Texture classification
Classification by engineering behaviour
AASHTO Classification
Unified soil classification system
Comparison between AASHTO and unified systems
etc.

4. Soil compaction
Compaction- General principles
Standard proctor test
Factors affecting compaction
Modified proctor test
Structure of compacted clay soil
etc.

5. Flow of water in soil: permeability and seepage
Bernoulli's equation
Darcy's law
Hydraulic conductivity
Laboratory determination of hydraulic conductivity Effect of hydraulic conductivity
Effect of water temperature on R
ETC.

6.Effective stress concepts
Stresses in saturated soil without seepage
Stresses in saturated soil with seepage
Seepage force
Use of fertilizer to increase the factor of safety against heave
Selection of filter materials
etc.

7. Stress in a soil mass
Normal and shear stress on a plane
The pole method of finding stresses along a plane
Stress caused by a point load
Westergaard's solution for vertical stress caused by a point load
Vertical stress caused by a line load
etc.


8. Compressibility of soil
Fundamentals of consolidation
One dimension laboratory consolidation
Void ratio-pressure plots
Normally consolidated and over consolidated clay
Effects of disturbance on void ratio-pressure relationships
Influence of other factors void ratio-pressure relationships
etc.

9. Shear strength of soil
Mohr-coulomb failure criteria
Direct shear test
Drained direct shear test on saturated sand and clay
General comment on direct shear test
Triaxial shear test -General
etc.

10. Lateral earth pressure
Earth pressure at rest
Rankine's theory of active pressure
Theory of Rankine's passive pressure
Effect of wall yielding
Diagrams for Lateral Earth pressure distribution against retaining elasticity
etc.

11. Dynamic lateral earth pressure
Active force on retaining walls with earthquake force
Location of the line of action the resultant force P ae
Design of retaining wall based on tolerable Latera displacement
Dynamic earth pressure distribution behind a wall rotating about the top
P ae for c-o soil backfill
Passive force on retaining walls with earthquake force
etc.

12. Soil bearing capacity for shallow foundation
Ultimate soil-bearing capacity for shallow foundation
Terzaghi's ultimate bearing capacity equation
effect of groundwater table
Factor of safety
General bearing capacity equation
etc.

13. Slope Stability
Factor of safety
Stability of infinity slopes with seepage
Finite slope-General
Analysis of finite slope with plane failure surfaces
Slopes with water in the tensile crack
etc.

14. Landfiil liners and geosynthetics
Landfill liners-overview
Geosynthetics
Geotextiles
Geomebranes
Geonets
etc.

15. Subsoil exploration
Planning for soil exploration
Boring methods
Common sampling methods
Sample disturbances
Correlation for standard penetration test

Bibliographical references and Index.