Extended Longwalls: Is Bigger Better.
Thimons-ED; Jankowski-RA; Finfinger-GL
Paper in Proceedings of Longwall USA Pittsburgh Pennsylvania, 1992 Jun; :1-15
Since the first introduction of longwalls into the U.S. mining industry, longwall mining productivity has been continually on the increase. These productivity gains have resulted from a number of operational and equipment changes. One constant trend over the years has been to increase the size of longwall panels. Extended longwall panels offer some major benefits in terms of fewer panel moves, less entry development, and increased resource recovery. At the same time, large increases in panel dimensions result in changes in the mining environment, and these changes can have potential positive and negative health and safety implications. This paper will take a generalized look at how longwalls are getting bigger, how this can impact health and safety, and point out some practices implemented by current extended longwall operations to improve conditions.
Paper in Proceedings of Longwall USA (Pittsburgh, Pennsylvania, June 16-18, 1992); Longwall USA, PP. 1-15