### CE2305 FOUNDATION ENGINEERING B.E. CIVIL ENGINEERING SYLLABUS ANNA UNIVERSITY, CHENNAI AFFILIATED INSTITUTIONS R - 2008

ANNA UNIVERSITY, CHENNAI

AFFILIATED INSTITUTIONS

R -  2008

B.E. CIVIL ENGINEERING

SYLLABUS

CE2305                               FOUNDATION ENGINEERING                                               LT P C

3  0 0 3

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.

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   Graphicamethods  (Rebhann  and  Culmann)  - pressure on the wall due to line load Stability of retaining walls.

TEXT BOOKS

TOTAL: 45 PERIODS

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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