If you have access to OneMine as part of a member benefit, log in through your member association website for a seamless user experience.
An Examination Of Energy Calculations Applied To Coal Bump Prediction
×
Citation (Style = APA)
Heasley, Keith A. (1990). An Examination Of Energy Calculations Applied To Coal Bump Prediction. Tenth International Conference on Ground Control in Mining Proceedings (ICGCM) 10th
Citation Downloads
Reference Manager (RIS)
SpreadSheed (CSV)
Heasley, Keith A. (1990). An Examination Of Energy Calculations Applied To Coal Bump Prediction. Tenth International Conference on Ground Control in Mining Proceedings (ICGCM) 10th
Citation Downloads
Reference Manager (RIS)
SpreadSheed (CSV)
Organization: International Conference on Ground Control in Mining
Pages: 8
Publication Date:
Jan 1, 1990
Email to a Friend
Abstract
Abstract
| Pillar recovery in deep coal mines with competent roof and floor can concentrate stresses and generate hazardous bumps. Actual calculation of the geologic strain energy released in association with these coal bumps has been rare, although energy release values have been utilized successfully for indicating burst potential in numerous hard- rock mines. This paper advances the current knowledge of energy release calculations as applied to coal bumps through an extensive analysis of an actual bump occurrence. The U.S.B.M, displacement- discontinuity code, MULSIM/NL, is used to produce a numerical model which generates stress, displacements and energy values associated with a pillar retreat section. This model is calibrated with actual field data, and then dissipated energy values from the model are examined as to their suit- ability for indicating bump potential. Ultimately, it is determined that prudent application of dissipated energy calculations can be used as a tool to investigate the coal bump potential of a mining plan or cut sequence. |
Full Article Download:
