EN3501 Soil Mechanics and Foundation Engineering Syllabus:
EN3501 Soil Mechanics and Foundation Engineering Syllabus – Anna University Regulation 2021
COURSE OBJECTIVES:
To understand the basic properties and strength nature of various soils and their settlement behavior in foundations.
UNIT I SOIL PROPERTIES AND COMPACTION OF SOIL
Nature of Soil-Problems with soil-phase relation–particle size distribution–Atterberg limitsclassification for engineering purposes-BIS Classification system–Soil compaction-factors affecting compaction– laboratory and field compaction methods and monitoring-Clay Minerology.
UNIT II SOIL MOISTURE– PERMEABILITY, STRESSE’S IN SOILS
Soil water–Various forms–Capillary rise–Suction-Effective stress concepts in soil–Total, neutral land effective stress distribution in soil –Permeability –Darcy‟s Law-Permeability measurement in the laboratory–quick sand condition-Stress distribution in soil media –Boussinesq‟s formula– stress due to line load ,Circular and rectangular loaded area–approximate methods- Use of influence charts–Westergaard equation for point load.
UNIT III SHEARSTRENGTH ANDSLOPE STABILITY
Shear strength of cohesive and cohesion less soil–Mohr, Coulomb failure theory–Measurement of shearstrength-directshear,Triaxialcompression,UCCandVanesheartests–Types of shear tests based on drainage and their applicability, Drained and undrained behavior of clay and sand. Slope failure mechanisms-Modes-Infinite slopes-Finite slopes–Total and effective stress analysis-Stability analysis for purely cohesive soils-Method of slices–Modified Bishop’s method-Friction circle method-stability number.
UNIT IV SOILEXPLORATION
Scope and objectives–Methods of exploration-averaging and boring–Wash boring and rotarydrilling–Depthofboring–Spacingofborehole-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).
UNIT V FOUNDATION– BEARINGCAPACITYANDSETTLEMENT
Introduction–Location and depth of foundation–Selection of foundation based on soil condition codal provisions–bearing capacity of shallow foundation on homogeneous deposits–Terzaghi‟s formula and BIS formula–factors affecting bearing capacity–problems-Bearing Capacity from in-situ tests(SPT,SCPT and plate load)–Allowable bearing pressure, Settlement–Components of settlement–Determination of settlement of foundations on granular and clay depositsAllowable settlements–Codal provision–Methods of minimizing settlement, differential settlement.
TOTAL: 45 PERIODS
COURSE OUTCOMES
On completion of the course, the student is expected to be able to
CO1 Graduates will demonstrate an ability to identify various types of soils and its properties, formulate and solve engineering Problems
CO2 Graduate will show the basic understanding of flow through soil medium and its impact of engineering solution
CO3 Graduate to understand about the basic concept of stress distribution in loaded soil medium and soil settlement due to consolidation
CO4 Graduate will show the understanding of shear strength of soils and its impact of engineering solutions to the loaded soil medium and also will be aware of contemporary issues on shear strength of soils.
CO5. Graduate will demonstrate an ability to plan and execute a detailed site investigation to select geotechnical design parameters and type of foundation
TEXTBOOKS:
1. Punmia.B.C, Soil Mechanics and Foundations, Laxmi Publications Pvt .Ltd, NewDelhi, 1995.
2. Murthy,V.N.S, “Soil Mechanics and Foundation Engineering”, UBS Publishers Distribution Ltd, NewDelhi, 1999.
3. PurushothamaRaj.P.,“SoilMechanicsandFoundationEngineering”,2nd Edition, Pearson Education, 2013
REFERENCES:
1. Coduto,D.P, Geotechnical Engineering Principles and Practices ,Prentice Hall of India Private Limited, NewDelhi,2002.
2. McCarthy D.F, Essentials of Soil Mechanics and Foundations Basic Geo techniques, SixthEdition, Prentice-Hall , NewJersey,2002.
3. Bowles J.E, “Foundation analysis and design”, McGraw-Hill,1996.