Unit 1 Theory of lateral Earth pressure

5 lecture hours

• Introduction Types of earth pressures
• Different theories of earth pressures
• Displacement-related earth pressure
• Rankine and Coulomb theory
• Friction circle method
• Terzaghi’s analysis
• Development of bearing capacity theory
• Development of uplift capacity theory

Unit 2 Stability of Earthen slopes

5 lecture hours

• Stability analysis of a slope and finding critical slip surface
• Limit equilibrium analysis
• Different methods of analysis
• Sudden Draw down condition
• effective stress and total stress analysis
• Seismic displacements in marginally stable slopes
• Reliability based design of slopes
• Methods for enhancing stability of unstable slopes

Unit 3 Soil Exploration and Geophysical Investigation

4 lecture hours

• Types of foundation
• Factors affecting the selection of type of foundations
• steps in choosing types of foundation based on soil condition
• Objectives and planning of exploration program
• methods of exploration-Auger boring
• wash boring and rotary drilling-depth of boring
• soil samples and soil samplers-representative and undisturbed sampling
• field penetration tests: SPT, SCPT
• Introduction to geophysical methods
• Bore log and report writing
• data interpretation

Unit 4 Shallow Foundations

10 lecture hours

• significant depth
• design criteria
• modes of shear failures
• Detail study of bearing capacity theories (Prandtl
• bearing capacity determination using IS Code
• Effect of Water table on Bearing Capacity
• Presumptive bearing capacity
• components of settlement & its estimation
• permissible settlement
• Proportioning of footing for equal settlement
• allowable bearing pressure
• Bearing capacity from in-situ tests (SPT
• PLATE LOAD)
• Bearing capacity of raft/mat foundation as per codal provisions
• Concept of contact pressure under rigid and flexible footings
• Floating foundation

Unit 5 Pile foundations

10 lecture hours

• load transfer mechanism
• types of piles and their function
• factors influencing selection of pile
• their method of installation and their load carrying characteristics for cohesive and granular soils
• piles subjected to vertical loads- pile load carrying capacity from static formula
• dynamic formulae (ENR and Hiley)
• penetration test data & Pile load test (IS 2911)
• Pile group: carrying capacity
• efficiency and settlement
• Negative skin friction

Unit 6 Ground Improvement Techniques

• Different types of problematic soils and their geological formation principles of treatment-loading
• Treatment of loose sands- Compaction piles
• dynamic compaction
• vibroflotation technique
• controlled blasting for compaction
• Grouting techniques. 04 9%

Unit 7 Geosynthetics & Reinforced Earths works

4 lecture hours

• Types of geosynthetics like geotextiles
• their manufacturing methods
• reinforcing of earthwork for embankment and foundation using geosythetics