Soil Exploration:

Introduction, Objectives and Importance, Stages and Methods of exploration- Test pits, Borings, stabilization of boreholes, Sampling techniques, Undisturbed, disturbed and representative samples, sample disturbance and Bore hole log.

Drainage and Dewatering:

Drainage and Dewatering methods, estimation of depth of GWT (Hvorslev’s method)
Flownets: Importance, properties and applications, Phreatic Lines, Seepage in earth dams (with and without)

Lateral Earth Pressure:

Active, Passive and earth pressure at rest, Rankine’s theory for cohesionless and cohesive soils, Factors influencing lateral earth pressure, Geotechnical design of gravity and cantilever retaining walls.

Stability of Slopes:

Assumptions, infinite and finite slopes, factor of safety, Swedish slip circle method for C and C-ø (Method of slices) soils, Fellineous method for critical slip circle, use of Taylor’s stability charts. Causes for slope instability, Methods of stabilisation of slopes.

Stresses in Soil:

Geodesic stress and Stress due to structures, Boussinesq’s Stress distribution in ground for point load, line load and uniformly distributed loads, Newmark’s Chart, Contact Pressure, Pressure bulbs. Types of settlements and importance, Computation of immediate and consolidation settlement, permissible differential and total settlements (IS 8009 part 1).