Truss systems for longwall tailgate support -- Update
- Jennmar Corporation, Pittsburgh, PA (United States)
- West Virginia Univ., Morgantown, WV (United States). Dept. of Mining Engineering
At the 13th Conference on Ground Control in Mining, a paper was presented detailing a successful test in which a new truss system was utilized, in lieu of wood cribs, for tailgate support in the Pittsburgh seam (Stankus et al., 1994). Since that time, additional tests using this same truss system in the Pittsburgh and other seams are now complete. Also, several mines are now using trusses for full panel tailgate support with no cribs. Through an extensive instrumentation program, much data and new information has been gained from these tests and the full panel usage. From this data, no only have new concepts pertaining to tailgate support been developed, but also for headgate, pillar configuration, primary and supplemental support. In this paper, an update will be presented summarizing the result of these various tailgates.
- OSTI ID:
- 124663
- Report Number(s):
- CONF-950811--; ISBN 0-930284-56-9
- Country of Publication:
- United States
- Language:
- English
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