JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives

To give details of Mechanics of rock failure and other aspects of

stability of underground and open cost workings including mechanics of subsidence, design of supports etc.

Course Outcomes

This professional course contents encourage the students to study

various aspects of ground control problems in underground and open cost mines with a better understandings of scope for application of various numerical methods and model studies in geo-mechanics.

UNIT - I

Physico-mechanical properties of rocks, Elastic and time dependent behavior, Rock mass classification.

UNIT - II

Theories of rock failure, Stress analysis, Insitu stress and stress distribution around mine openings. Ground failure and pressure on supports, Stability of wide openings, Design of supports in mine workings.

UNIT - III

Subsidence: Causes and impacts of subsidence, Mechanics of surface subsidence, discontinuous and continuous subsidence. Monitoring, prediction, control and management of subsidence.

UNIT - IV

Mechanics of rock burst and bumps, Stability of slopes. Instrumentation and measurement of insitu stresses and rock strength, Photolasticity and scale model studies.

UNIT - V

Basics of numerical methods in geo-mechanics with applications.

TEXT BOOKS:

• 1. Jager. J C & Cook NGW Fundamentals of Rock Mechanics, Blackwell Publishers
• 2. Jumikis Alfreds. R, Rock Mechanics , Trans Tech Publishers

REFERENCE BOOKS:

• 1. Peng. Syd. S. Coal Mining Ground Control West Virginia University 2 Brady, BHG& Brown.ET, Rock mechanics for underground mining, George Allen & Unwio Ltd, 1992