SF4011 Geotechnics of Underground Structures Syllabus:
SF4011 Geotechnics of Underground Structures Syllabus – Anna University PG Syllabus Regulation 2021
OBJECTIVES:
Students mainly focused in visualizing and critically analyzing the behavior of underground structures with reference to various supporting systems under different loading conditions due to induced earth pressure on the underground structures.
UNIT I GROUND MOVEMENTS AND ITS EFFECTS
Understanding of the ground – Building response to ground movements – concept of limiting tensile strain – strains in simple rectangular beams – ground movement due to tunneling and excavation – lateral supporting systems – retaining walls – factors influencing on the selection of the retaining system – case history.
UNIT II ANALYSIS OF UNDERGROUND SUPPORTING SYSTEMS
Underground supporting system analysis – free and fixed earth support method – shear failure of strutted walls – push in – basal heave – upheaval – sand boiling – Stress and deformation analysis of excavation: simplified method – beam on elastic foundation method – finite element method.
UNIT III DESIGN OF UNDERGROUND SUPPORTING SYSTEMS
Principles of retaining wall design – types of wall support systems – design of structural elements – Permanent situations – bottom-up/top-down construction sequences – Props – Tied systems – Soil berms – Design of ground anchors – Retaining wall as part of complete underground structure – resistance to vertical and lateral actions
UNIT IV DESIGN OF TUNNEL
Longitudinal and transverse profile of tunnel structure – tunnel protection against fire – advanced systems of anti-water insulation of underground structures – loading types of shallow and deep tunnels, rock mass classification – mining technologies of deep excavation – shield technology, execution technology of shallow underground structures, sewerage objects – trenchless technologies.
UNIT V PROTECTION OF ADJACENT BUILDINGS
Protection of building using the behaviour of excavation and tunneling induced deformation – building protection by auxiliary methods – construction defects and remedial measures – building rectification methods.
OUTCOMES:
On completion of the course, the student is expected to be able to
CO1 Understand various types of supporting systems used for excavations and analyse ground movement due to various activities like excavations
CO2 Analyse underground supporting system using mathematical, analytical and numerical methods
CO3 Design various underground supporting systems using mathematical and numerical approach
CO4 Understand the concept of tunnelling, analyse and design the tunnel in different
CO5 ground conditions Protect the adjacent building due to underground construction using various methods.
REFERENCES:
1. Chang – Yu Ou, Deep Excavation Theory and Practice, Taylor & Francis Group, London, UK, 2006.
2. Holtz, R.D. and Kovaces, W.D., An Introduction to Geotechnical Engineering, Prentice – Hall, Inc., Englewood Cliffs, NJ, 1981.
3. Terzaghi, K. and Peck, R. B, Soil Mechanics in Engineering Practice, John Wiley & Sons, New York, 1967.
4. Peck, R. B., Hanson, W.E., and Thornburn, T.H., Foundation Engineering, John Wiley & Sons, New York, 1977.
5. Hausman, M. R., Engineering Principles of Ground Modification, McGraw – Hill Publishing Company, New York, 1990.
6. Bowles, J. E. Foundation Analysis and Design, 4th Ed. McGraw – Hill Book Company, New York, USA, 1988.
7. Hoek, E., Brown, E.T., Underground excavations in rock, The Institution of Mining and Metallurgy, London, SW7 2BP, England, 1980.
8. Goel, R.K. and Dwivedi, R.D., A Short-Term course on Underground Engineering, Central Institute of Mining and Fuel Research Regional Centre, Roorkee, 2010.
9. Megaw T. M., and Bartlett, J.V., Tunnels: planning, design, construction. Ellis Horwood, 1983.
10. Kolymbas, D., Tunnelling and tunnel mechanics: A rational approach to tunnelling, 2nd corrected printing © 2008, Springer – Verlag Berlin Heidelberg, Italy, 2005.
11. Lunardi, P., Design and construction of tunnels, Springer – Verlag Berlin Heidelberg, Italy, 2008.
12. John Burland, Tim Chapman, Hilary Skinner and Michael Brown, ICE manual of geotechnical engineering, Volume II, ICE publication, Londan, U.K, 2012.