Report of Investigations 9308: Laboratory Evaluation of Cable Bolt Supports (in Two Parts): 1. Evaluation of Supports Using Conventional Cables

Details

• Journal Article:
  MISSING
• Personal Author:
  Goris, John M.
• Description:
  The U.S. Bureau of Mines is conducting research on cable bolt ground supports to assess their material and support properties, to provide design criteria for using cable bolt supports as roof control systems under various types of underground mining conditions, and to provide a mathematical model of cable bolt support systems. Part 1 describes laboratory studies of the support properties of cable bolts made of conventional steel cables and provides recommendations on such topics as the use of thick grouts, selection of breather tubes, and reduction of water bleeding in cement-based grouts. The studies evaluated both single and double cables; effects of different embedment lengths, water-cement ratios, and grout curing temperatures on support strength; effects of use or nonuse of breather tubes; pumpability and water-bleeding properties of grouts; and the strength properties of sand-cement grouts. Part 2 will cover the strength characteristics of birdcage cable bolt supports, epoxy-coated cables, and cables with steel buttons attached. [Description provided by NIOSH]
• Subjects:
  Laboratories Mining Occupational Health Safety
• Source:
  MISSING :23 pages
• Series:
  NIOSH Numbered Publications   ; Mining Publications  
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  United States
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  SRC - Spokane Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  29 pdf pages
• NIOSHTIC Number:
  nn:10007690
• Federal Fiscal Year:
  1990
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:68f4cf58d6db724b0bb158a28b68ea9b4582c59f882f94c7959c595b6e9cfc2b0f6246a277044990e013c178076de6b4c23f6b76ede5a24d0b9ba2c777159529
• Download URL:
  https://stacks.cdc.gov/view/cdc/10557/cdc_10557_DS1.pdf
• File Type:
  [PDF - 2.16 MB ]