SF4009 Rock Mechanics and Applications Syllabus:
SF4009 Rock Mechanics and Applications Syllabus – Anna University PG Syllabus Regulation 2021
OBJECTIVES:
Students are expected to classify, understand stares-strain characteristics, failure criteria, and influence of insitu stress in the stability of various structures and various technique to improve the insitu strength of rocks.
UNIT I CLASSIFICATION OF ROCKS
Types of Rocks – Index properties and classification of rock masses, competent and incompetent rock – value of RMR and ratings in field estimations.
UNIT II STRENGTH CRITERIA OF ROCKS
Behaviour of rock under hydrostatic compression and deviatric loading – Modes of rock failure – planes of weakness and joint characteristics – joint testing, Mohr – Coulomb failure criterion and tension cut-off. Hoek and Brown Strength criteria for rocks with discontinuity sets.
UNIT III INSITU STRESSES IN ROCKS
Insitu stresses and their measurements, Hydraulic fracturing, flat jack, over coring and under coring methods – stress around underground excavations – Design aspects of openings in rocks – case studies.
UNIT IV SLOPE STABILITY AND BEARING CAPACITY OF ROCKS
Rock slopes – role of discontinuities in slop failure, slope analysis and factor of safety – remedial measures for critical slopes – Bearing capacity of foundations on rocks – case studies
UNIT V ROCK REINFORCEMENT
Reinforcement of fractured and joined rocks – shotcreting, bolting, anchoring, installation methods – case studies.
OUTCOMES:
On completion of the course, the student is expected to be able to
CO1 Classify the Rock mass and rate the quality of rock for tunnelling and foundations works and suggest the safer length of tunnelling and stand up time.
CO2 Apply the knowledge of engineering and understand the stress – strain characteristics and failure criteria of rock and apply them to arrive at the shear strength parameters of rocks to be used for the design of structures resting on rock and also for the design of underground excavation in rocks.
CO3 Apply the knowledge of engineering and assess the influence of insitu stress in the stability of various underground excavations and also acquire the knowledge of design of opening in rocks.
CO4 Apply the knowledge on rock mechanics and analyse the stability of rock slopes and arrive at the bearing capacity of shallow and deep foundations resting on rocks considering the presence of joints. design the foundations resting on rocks. Able to carryout suitable foundation for the structure resting on rock.
CO5 Improve the insitu strength of rocks by various methods such as rock reinforcement and rock support. Able to select suitable support system considering the interaction between rock and support. Also capable of executing the same in the field.
REFERENCES:
1. Goodman, R.E., Introduction to rock mechanics, John Willey and Sons, 1989.
2. Hudson, A. and Harrison, P., Engineering Rock mechanics – An introduction to the principles, Pergamon publications, 1997.
3. Hoek, E and Bray, J., Rock slope Engineering, Institute of Mining and Metallurgy, U.K. 1981.
4. Hoek, E and Brown, E.T., Underground Excavations in Rock, Institute of Mining and Metallurgy, U.K. 1981.
5. Obvert, L. and Duvall, W., Rock Mechanics and the Design of structures in Rock, John Wiley, 1967.
6. Bazant, Z.P., Mechanics of Geomaterials Rocks, Concrete and Soil, John Wiley and Sons, Chichester, 1985.
7. Wittke, W., Rock Mechanics. Theory and Applications with case Histories, Springerverlag, Berlin, 1990.
8. Waltham, T, Foundations of Engineering Geology, Second Edition, Spon Press, Taylor & Francis Group, London and New York, 2002.
9. Ramamurthy T. , “Engineering in Rocks for Slopes Foundations and Tunnels”, PHI Learning Pvt. Ltd., 2007.