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You are here:Open notes-->Anna-University-->CE2305-FOUNDATION-ENGINEERING

# How to study this subject

OBJECTIVE
At the end of this course student acquires the capacity to assess the soil condition at a given
location in order to sugest suitable foundation and also gains the knowledge to design various
foundations.
UNIT I SITE INVESTIGATION AND SELECTION OF FOUNDATION 9
Scope and objectives – Methods of exploration-auguring and boring – Water boring and rotatory
drilling – Depth of boring – Spacing of bore hole - Sampling – Representative and undisturbed
sampling – sampling techniques – Split spoon sampler, Thin tube sampler, Stationary piston
sampler – Bore log report – Penetration tests (SPT and SCPT) – Data interpretation (Strength
parameters and Liquefaction potential) – Selection of foundation based on soil condition.
UNIT II SHALLOW FOUNDATION 9
Introduction – Location and depth of foundation – codal provisions – bearing capacity of shallow
foundation on homogeneous deposits – Terzaghi’s formula and BIS formula – factors affecting
bearing capacity – problems - Bearing Capacity from insitu tests (SPT, SCPT and plate load) –
Allowable bearing pressure, Settlement – Components of settlement – Determination of
settlement of foundations on granular and clay deposits – Allowable settlements – Codal
provision – Methods of minimising settlement, differential settlement.
UNIT III FOOTINGS AND RAFTS 9
Types of foundation – Contact pressure distribution below footings and raft - Isolated and
combined footings – Types and proportioning - Mat foundation– Types, applications uses and
proportioning-- floating foundation.
UNIT IV PILES 9
Types of piles and their function – Factors influencing the selection of pile – Carrying capacity of
single pile in granular and cohesive soil - Static formula - dynamic formulae (Engineering news
and Hiley’s) – Capacity from insitu tests (SPT and SCPT) – Negative skin friction – uplift
capacity – Group capacity by different methods (Feld’s rule, Converse Labarra formula and
block failure criterion) – Settlement of pile groups – Interpretation of pile load test – Forces on
pile caps – under reamed piles – Capacity under compression and uplift.46
UNIT V RETAINING WALLS 9
Plastic equilibrium in soils – active and passive states – Rankine’s theory – cohesionless and
cohesive soil - Coloumb’s wedge theory – condition for critical failure plane - Earth pressure on
retaining walls of simple configurations – Graphical methods (Rebhann and Culmann) -
pressure on the wall due to line load – Stability of retaining walls.
TOTAL: 45 PERIODS
TEXT BOOKS:
Â 1. Murthy, V.N.S, “Soil Mechanics and Foundation Engineering”, UBS Publishers
Â Distribution Ltd, New Delhi, 1999.
Â 2. Gopal Ranjan and Rao, A.S.R. ”Basic and Applied Soil Mechanics”, Wiley Eastern
Â Ltd., New Delhi (India), 2003.
REFERENCES:
1. Das, B.M. “Principles of Foundation Engineering (Fifth edition), Thomson Books / COLE,
2003
2. Bowles J.E, “Foundation analysis and design”, McGraw-Hill, 1994
3. Punmia, B.C., “Soil Mechanics and Foundations”, Laxmi publications pvt. Ltd., New Delhi,
1995.
4. Venkatramaiah,C.”Geotechnical Engineering”, New Age International Publishers, New
Delhi, 1995

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