Define rock mechanics. Discuss the application of rock mechanics.
[3 marks]Explain the analysis of stress and strain curve.
[4 marks]Discuss the theory of reinforcement of rock mass by different types of support system.
[7 marks]Determine hydro-fracturing of rock in pre-mining state of stress.
[3 marks]State the aims and objectives of a rock mass classification.
[4 marks]Define strength of rock. Explain different types of strength.
[7 marks]Explain dynamic properties of rock and rock mass.
[7 marks]List out the name of physical and mechanical properties of rock.
[3 marks]Explain failure of rocks. Describe the types of failure.
[4 marks]Describe roof testing and stitching in the support system.
[7 marks]Discuss the factors on which mechanical properties of rocks depends.
[3 marks]Differentiate between isotropic and anisotropic rock.
[4 marks]Explain Mohr’s scale of hardness and role of hardness in rock mass.
[7 marks]Explain the application of rock mass classification in mining problems.
[3 marks]Explain the Rock Quality Designation Index (RQD).
[4 marks]Discuss the Griffith’s theory of fracture in rock mass.
[7 marks]Discuss the factors affecting strength of rock.
[3 marks]Explain porosity and density of rock.
[4 marks]Discuss Mohr’s and Coulomb theories of failure.
[7 marks]Explain how slake durability of rock is determined.
[3 marks]Define permeability. Discuss the uses of permeability.
[4 marks]Explain static and dynamic methods for determining elastic constant of rock.
[7 marks]Compare RMR classification system with Qsystem.
[3 marks]Describe the method for determination of modulus of elasticity and Poisson’s ratio of a rock sample.
[4 marks]Define abrasivity. Explain how it is determined in rock.
[7 marks]