Unit 1 Introduction

8 lecture hours

• Need and scope of Geotechnical Engineering
• role and application of geology
• geological cycle
• Types of soils
• Index Properties
• Inter-relationships and Soil Characterization: Types of soil and soil formation
• Phase diagrams
• Basic terms
• Functional relationships based on index properties
• Physical characterization of soil-Dry and Wet sieve analysis
• Atterberg’s Indices
• Soil Structures
• Soil Water and its types
• Standard nomenclature & IS Soil Classification
• Problems/Codes/Lab and Field Tests

Unit 2 Permeability and seepage

4 lecture hours

• Darcy's law and its validity
• Factors affecting permeability
• Laboratory permeability tests
• Permeability of stratified soil masses
• Seepage pressure
• Quick condition
• Flow nets

Unit 3 Compaction & Consolidation of soil

8 lecture hours

• Definitions and difference between compaction and consolidation
• Compaction mechanism and proctor tests
• field compactions methods
• factors affecting compaction
• Consolidation mechanism through spring analogy
• fundamental definitions
• Terzaghi’s one dimensional consolidation theory (only formula)
• Time factor
• Pre consolidation pressure consolidation settlement
• Tests will be covered in lab sessions

Unit 4 Stress distribution

4 lecture hours

• Causes of stresses in soil
• Boussinesque’s and Westergard’s equation
• Pressure Bulb
• Stress distribution on horizontal and vertical planes
• Stresses due to different shape of footings
• New-mark’s influence chart

Unit 5 Shear Strength of Soil

6 lecture hours

• Mohr- coulomb’s strength theory
• Modified Mohr- Coulomb’s theory
• shears parameters through lab and field tests based on drainage conditions Numerical
• Tests will be covered in lab sessions

Unit 6 Earth Pressure & Stability of Slopes

• Types of lateral earth pressure
• Rankine’s and Coulomb’s earth pressure
• Rehbann’s / Culmann’s Graphical methods
• Infinite and finite slopes
• Factor of safety
• Type of slope failure
• Friction circle and Swedish circle methods-Taylor’s stability number
• Numericals. 9 Program Name: Bachelor of Engineering Level: UG Branch: Civil Engineering Subject Code: BE04006021 Subject Name: Geotechnical Engineering

Unit 7 Introduction to Soil Exploration, Types of Foundation and Bearing Capacity

6 lecture hours

• Objectives and methods of explorations – Sampling
• Shallow and Deep Foundations
• Basic terms
• SBC computation using IS and Terzaghi methods
• Pile and Pile capacity