CE2305 FOUNDATION ENGINEERING
L T P C3 0 0 3
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
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
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
UNIT III FOOTINGS AND RAFTS
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
Types of piles and their function - Factors Influenclnq tre 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 ~p;; - under reamed piles - Capacity
under compression and uplift.
UNIT V RETAINING WALLS
Plastic equilibrium in soils - active and passive states - Rankine's theory - cohesion less
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
1. Murthy, V.N.S, "Soil Mechanics and Foundation E.ngineering", 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.
1. Das, B.M. "Principles of Foundation Engineering (Fifth edition), Thomson Books /
2. Bowles J.E, "Foundation analysis and design", McGraw-Hili, 1994
3. Punmia, B.C., "Soil Mechanics and Foundations", Laxmi publications pvt. Ltd., New
4. Venkatramaiah,C."Geotechnical Engineering", New Age International Publishers,