Application of the Ground Response Curve for Understanding the Overburden Load Transfer Mechanism

Details

• Personal Author:
  Haochen Z ; Klemetti, Ted M. ; Sena C ; Tulu IB ; Tuncay D
• Description:
  Analysis of Longwall Pillar Stability (ALPS) and Analysis of Retreat Mine Pillar Stability (ARMPS) treat the pillar as a passive structure that is designed to carry overburden dead-weight. This dead-weight is calculated by simple rules based on the geometry of the mining, such as "tributary area theory," "pressure arch theory," and "abutment angle theory." Although the pressure arch loading approach indirectly accounts for the generally stiffer overburden response of narrow and deep panels, it does not include the effect of specific geology of the overburden in load calculations. The relationship between successful pillar layouts and overburden geology can be incorporated into the load calculation by using the Ground Response Curve (GRC) approach. This paper introduces the GRC modeling methodology to investigate the effect of overburden geology and excavation geometry on load transfer mechanisms using seven field measurement case studies from four U.S. mines. It was also shown that the modeling methodology used to derive GRC in this study approximates mining-induced stresses and deformations within 5% of the values measured in the field. [Description provided by NIOSH]
• Subjects:
  Case Reports Geology Mining Occupational Health Safety
• Keywords:
  Case Studies Excavations Geologic Formations Geologic Models Geologic Structures Ground Monitoring Ground Stability Load Monitoring Longwall Mining Models Overloading Pillar Mechanics Retreat Mining Room And Pillar Mining

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• Series:
  Mining Publications
• ISBN:
  9780873354721
• Publisher:
  Society for Mining, Metallurgy & Exploration, Inc., (SME)
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  Colorado ; OSHA Region 3 ; OSHA Region 8 ; Pennsylvania ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PMRD - Pittsburgh Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  11-16
• NIOSHTIC Number:
  nn:20060009
• Citation:
  Proceedings of the 38th International Conference on Ground Control in Mining (ICGCM 2019), July 23-25, 2019, Morgantown, West Virginia. Klemetti T, Mishra B, Lawson H, Murphy M, Perry K, eds. Englewood, CO: Society for Mining, Metallurgy & Exploration, Inc., (SME), 2019 Jul; :11-16
• Contact Point Address:
  I. B. Tulu, Department of Mining Engineering, West Virginia University, United States
• Editor(s):
  Klemetti T; Mishra B; Lawson H; Murphy M; Perry K
• Federal Fiscal Year:
  2019
• Peer Reviewed:
  False
• Source Full Name:
  Proceedings of the 38th International Conference on Ground Control in Mining (ICGCM 2019), July 23-25, 2019, Morgantown, West Virginia
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:345c0bfc1b25618980c00841f4881e14735b0bc992078b58f5aa2ec1e3df31446028c6ab98edc3c7239aa3078a653b76183af8bf3a58cdb7e6b30a9b8084499b
• Download URL:
  https://stacks.cdc.gov/view/cdc/215250/cdc_215250_DS1.pdf
• File Type:
  [PDF - 1.83 MB ]