JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

Introduction -Principles of Design of Foundations, Types of shear failures in foundation soils, Types of foundations, Design Loads, Basic Concepts of safe and allowable bearing capacity. Shallow Foundations Bearing Capacity Analysis: Bearing capacity theories – Terzaghi, Meyerhof, Skempton, Hansen, Vesic and IS Methods, Bearing capacity evaluation from Standard Penetration test and Plate load test. Settlement Analysis:

UNIT - II

Uniform and Differential Settlements, Elastic and Consolidation Settlements, Settlement analysis in cohesionless soils by Schemartmann and Hartman method, Penetration tests; Permissible settlements as per IS 1904-1978, causes of settlement, settlement Control.

UNIT - III

Proportioning of footings: Isolated column footings, Strip, combined Footings and Strap Footing. Raft Foundations: Bearing capacity of raft foundation, floating raft, Types of rafts, Beam on Elastic foundation and Conventional methods of Design, determination of modulus of subgrade reaction.

UNIT - IV

Deep Foundations - Pile Foundations: Types, load capacity- dynamic formulae, static formula; pile load tests- Vertical load test, lateral load test, Cyclic load test; settlement of piles and pile groups, negative skin friction on single pile and pile groups; laterally loaded piles - Broom’s Analysis, IS Code method; Under reamed piles – Load capacity, design and construction. Well Foundations: Types, Bearing Capacity of well foundations, Construction of pneumatic caissons, Tilts and Shifts: precautions, Remedial measures; Lateral stability analysis by Terzaghi’s Method, Design aspects of Components of well foundation.

UNIT - V

Foundations in Expansive Solis Introduction, Identification of expansive soils, Swell potential and swelling pressure, Active depth, Foundation Problems, Foundation practices in expansive soils, Soil Replacement and ‘CNS’ concepts. Foundations of Transmission Line Towers - Introduction, Necessary information, Forces on tower foundations, General design criteria, Choice and type of foundation, Design procedure.

TEXT BOOKS:

• 1. Analysis and Design of Substructures by Swami Saran, Oxford & IBH Publishing Co. Pvt. Ltd.
• 2. Basic and Applied Soil Mechanics by Gopal Ranjan and A.S.R. Rao, New Age International Publications

REFERENCE BOOKS:

• 1. Foundation Analysis and Design by J.E. Bowles, Mc Graw Hill Publishing Co.
• 2. Foundation Design by W.C. Teng, John Wiley, New York.
• 3. Analysis and Design of Substructures by Swami Saran, Oxford &IBH Publishing Co.
• 4. Foundation Engineering by P.C. Varghese, Prentice Hall of India. R19 M.TECH STRUCTURAL ENGG. M.TECH.- I YEAR- I SEMESTER STRUCTURAL ENGINEERING