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

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:
 1. Murthy, V.N.S, “Soil Mechanics and Foundation Engineering”, UBS Publishers
 Distribution Ltd, New Delhi, 1999.
 2. Gopal Ranjan and Rao, A.S.R. ”Basic and Applied Soil Mechanics”, Wiley Eastern
 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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