Ground Control in Mines

Ground Control in Mines

( UNIT -2 )

Stresses around underground openings- Types of Openings, Stresses around openings using classical closed-form solutions, Design considerations in selection of openings, Numerical analysis methods- Finite Element Method(FEM), Boundary Element Method (BEM) & Hybrid Methods.

Pillar Design- Estimating average pillar pressure by Tributary Area Method & its criticism, Factors affecting pillars strength, various formulae for determination of pillar strength, Factor of safety, Steps in design of pillars.

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( UNIT -3 )

Rockbursts- Caving characteristics of roof rocks, Types and Phenomenology of rock bursts, Factors affecting rock bursts, prediction of rock bursts, Monitoring-Methods & Instrumentation, Prevention & control of rock bursts, Bumps and Gas Outbursts.

Overburden Movement & Abutment pressure in Longwall Mining.

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( UNIT -4 )

SUBSIDENCE- Subsurface & Surface subsidence, Important Theories of Subsidence, Types of surface subsidence, Factors affecting subsidence, Related terminology, Subsidence profile, Subsidence prediction, Subsidence survey, Prevention & Control of Subsidence.

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( UNIT -5 )

Monitoring Ground Movement-Purpose, devices to measure deformation.

Photo-elasticity - Principle and its Applications.

Slope Stability of opencast benches - Various factors and techniques of slope stability, monitoring and protecting of benches.

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PASSWORD - edla