A Ground Control and Subsidence Study of a Longwall Mine in Southern Illinois

Details

• Personal Author:
  Chugh YP ; Miller PE ; Yu Z
• Description:
  This paper presents the results of an ongoing field geotechnical study in a longwall mine in southern Illinois. The study includes both surface and underground instrumentation and monitoring. Surface subsidence monitoring includes vertical and horizontal deformations of sixty-five monuments along and across the study panel, and underground instrumentation includes measurement of changes with face retreat in vertical pressure and horizontal deformation of chain pillars, and roof-floor convergence, roof sag, and floor heave in entries. An attempt is made to correlate the surface and in-mine ground movements. A hyperbolic tangent equation appears to fit changes in pillar deformation, convergence, and surface subsidence data as a function of face position very well. The developed equations may be used by the mining industry to plan additional supports in entries, vacating surf ace structures, and in planning land use over mined-out areas. [Description provided by NIOSH]
• Subjects:
  Mining Occupational Health Safety
• Keywords:
  Coal Mines Floors Geotechnical Engineering Ground Control Ground Monitoring Ground Subsidence Longwall Mining Mining Industry Monitoring Systems Pillar Mechanics Roof Supports Roof Support Systems Subsidence Surface Properties Underground Mining

  More +
• Series:
  Mining Publications
• Publisher:
  Southern Illinois University
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  Illinois ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  195-216
• NIOSHTIC Number:
  nn:20051249
• Citation:
  Proceedings of the 4th Conference on Ground Control for Midwestern U. S. Coal Mines, November 2-4, 1992, Mt. Vernon, Illinois. Chugh YP, Beasley G, eds. Carbondale, IL: Southern Illinois University, 1992 Nov; :195-216
• Editor(s):
  Chugh YP; Beasley G
• Federal Fiscal Year:
  1993
• Peer Reviewed:
  False
• Source Full Name:
  Proceedings of the 4th Conference on Ground Control for Midwestern U. S. Coal Mines, November 2-4, 1992, Mt. Vernon, Illinois
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:5cc8868e2c44304d55edfc24bd0bc943d6d1ac296f0b114139e4eb8a68c86b169b62046391e09538627ffc676ad33eb613b833f42c3af203302c7a5d58ba8446
• Download URL:
  https://stacks.cdc.gov/view/cdc/227647/cdc_227647_DS1.pdf
• File Type:
  [PDF - 647.91 KB ]