Remedial and Strata Replacement Techniques on Longwall Faces–a Report on the State of the Art

Details

• Personal Author:
  Curth EA ; Dalzell RS
• Description:
  Following the introduction of roof shields to the U.S. longwall mining scene in 1975, the number of shield faces (faces supported by shields) has increased steadily, and the occurrence of accidents associated with ground control inadequacies at longwall operations has shown a downward trend. However, ground control problems in longwall mining still exist. New mining systems, however efficient, have run afoul of roof control. Shield faces have suffered extended stoppages because of roof cavities. In this report, the Bureau of Mines addresses the problem of longwall roof control. The report presents a review of foreign remedial and strata replacement techniques for longwall faces and evaluates their potential for domestic application. The technology reviewed includes meshing, chemical rock stabilization, cribbing, strain-absorbent modules, inflatables, synthetic foams, and monolithic fills. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Information Circular
• Document Type:
  Text
• Genre:
  Conference Publications ; Pamphlet or Booklet
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRC - Pittsburgh Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-29
• NIOSHTIC Number:
  nn:10004454
• Federal Fiscal Year:
  1985
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:b0684a99d315bd2914def9556197f2be79a1795014fcdb1934672507875bb83d7e221a9e694a7b8942033c8838409b44ebee683ff2bab04bbc80a48397956b8f
• Download URL:
  https://stacks.cdc.gov/view/cdc/236049/cdc_236049_DS1.pdf
• File Type:
  [PDF - 6.70 MB ]