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Strain Energy Analysis Related To Strata Failure During Caving Operations, Caroline Gerwig
Strain Energy Analysis Related To Strata Failure During Caving Operations, Caroline Gerwig
Theses and Dissertations--Mining Engineering
For stiff beams that can form over the gob of longwall panels, the potential seismic magnitude of the energy released upon strata caving is estimated. Analytical calculations are used to verify two-dimensional models of longwall roof beams to determine the strain energy and gravitational energy developed, that will then be released to surrounding mine workings. Models are developed using RS2 to model the stress, strain, and deflection along the bottom of the longwall roof beam to calculate gravitational and strain energies.
The total energy is then converted to seismic magnitude. Strain energy was consistently less than gravitational energy, except for …