Foundation Engineering

Contents of foundation engineering:-

Lateral Earth Pressures Theories: Lateral Earth Pressures Theories- Introduction: applications of earth
pressure theories, different types of earth pressure at rest, active and passive pressure. Rankine‟s Earth
Pressure Theory, active earth pressure and passive earth pressure.
Coulomb‟s Wedge Theory: Coulomb‟s active pressure in cohesion-less soils, expression For active pressure,
Coulomb‟s passive earth pressure. Culmann‟s graphical solutions for active soils, Wedge Method, passive
pressure by friction circle method.

Bearing Capacity of Shallow Foundation– Definitions of ultimate bearing capacity, gross, net and safe
pressures, allowable bearing pressure

Introduction to pile foundations: Necessity of pile foundation, classification of piles, construction methods of
bored piles, concrete bored piles, driven cast in-situ piles.
Pile capacity based on static analysis, piles in sand, piles in clay, dynamic methods and their limitations, in-
situ penetration tests and pile load test as per IS 2911 specifications, negative skin friction. Pile groups
ultimate capacity of groups, settlement of pile groups in sand and in clay as per IS 2911

Underground Conduits- Classes of underground conduits, load on a ditch conduit, settlement ratio, ditch
condition and projection condition, imperfect ditch conduit.
Open Cuts: Difference in open cuts and retaining walls, apparent pressure diagrams, average apparent
pressure diagrams for sand and stiff clay, estimation of loads on struts.

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