ICGCM Papers:
Subsidence and Slope Stability
 
 
Whole-Mine Subsidence Over Tabular Deposits and Related Seismicity
35th International Conference on Ground Control in Mining
Whole-Mine Subsidence Over Tabular Deposits and Related Seismicity
by
William G. PariseauMichael K. Mccarter, University of Utah, Salt Lake City, United States
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[Conference] 35th International Conference on Ground Control in Mining
[Price] Free  [Comments] 0
[Topical Area] Subsidence and Slope Stability
[Author] William G. PariseauMichael K. Mccarter, University of Utah, Salt Lake City, United States
[Abstract] 
Key Conclusions:
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The main conclusions are: (1) capability for doing practical whole-mine analysis from first principles using a special finite element technique is demonstrated, and (2) mine-induced seismicity is normally related to production or face advance, while anomalous activity is a cautionary indicator of potential unsafe conditions, as others have noted.
Key Findings:
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Key findings are results from fundamental studies of several coal mines in central Utah where comparisons of mine observations with computation results show reasonable agreement. Encouraging correlations between face advance, extent of failure, and parameters of mine-induced seismicity are noted.
Objective of the Paper:
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The objective of the work is to meet the three-dimensional challenge of scales associated with whole-mine analysis of tabular deposits and associated mine-induced seismicity starting from first principles of physical laws, kinematics, and material laws.
Problem Statement:
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The problem is estimating mine-wide subsidence and linkages to related seismicity over thin, tabular deposits that have great lateral extent. Subsidence begins near the face where detail is needed at the meter scale but extends over the mine at the kilometer scale.