The influence of stream valleys on coal mine ground control.
Proceedings of the 7th International Conference on Ground Control in Mining, August 3-5, 1988, Morgantown, West Virginia. Peng SS, ed. Morgantown, WV: West Virginia University, 1988 Aug; :247-258
Over 50 mines of the Appalachian and Illinois Basins are presently experiencing poor ground conditions believed to be caused by overlying stream valleys. This paper describes research being conducted by the Bureau of Mines into the causes of this problem with the aim of developing a predictive method for determining the safe limits of mining beneath stream valleys. In addition, the factors that control instability in these regions will be analyzed to provide design guidelines for adjusting support requirements.
Mining; Mining industry; Ground control
OP; Conference/Symposia Proceedings
Proceedings of the 7th International Conference on Ground Control in Mining, August 3-5, 1988, Morgantown, West Virginia