Introduction to Rock Mechanics. Analysis of stress and strain. representation of stress- strain, Engineering properties of Rocks. Determination of various rock indices, Determination of physical and mechanical properties of Rocks. Elastic Constants, Engineering classification of rock mass. Instrumentation used for determination of in - situ stresses and laboratory investigations, Design of underground openings. Design of pillars in underground coal mines, Rock reinforcement / Ground improvement techniques in rock masses, Subsidence: Prediction and measurement of subsidence. Subsidence damage and control.