National Technical Reports Library - NTRL

National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.




Details
Actions:
Download PDFDownload XML
Download

Artificial Supports for Coal Mine Ground Control.


PB97120620

Publication Date 1996
Page Count 17
Abstract The report is a discussion of four types of support systems developed by the U.S. Bureau of Mines for use in both room-and-pillar retreat and longwall mining systems. These are: Mobile Roof Support System; Steel-Fiber-Reinforced Concrete Cribbing; Yielding Steel Posts; and Lightweight Hydraulic Supports.
Keywords
  • Coal mines
  • Strata control
  • Underground supporting
  • Underpinning
  • Hydraulic fluids
  • Pipes(Tubes)
  • Steel piles
Source Agency
  • Bureau of Mines
NTIS Subject Category
  • 48A - Mineral Industries
Corporate Authors Bureau of Mines, Spokane, WA. Spokane Research Center.
Document Type Technical Report
NTIS Issue Number 199705
Artificial Supports for Coal Mine Ground Control.
Artificial Supports for Coal Mine Ground Control.
PB97120620

  • Coal mines
  • Strata control
  • Underground supporting
  • Underpinning
  • Hydraulic fluids
  • Pipes(Tubes)
  • Steel piles
  • Bureau of Mines
  • 48A - Mineral Industries
Loading