Cutter roof failure: an overview of the causes and methods for control.
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 9094, 1986 Jan; :1-27
The Bureau of Mines is conducting research on the causes and methods for control of cutter roof failure in underground coal mines. This hazardous ground control problem exposes miners to the danger of falling roof rock and frequently results in massive roof failure. This report outlines the probable causes of cutter roof failure, which are based on field investigations, numerical model analysis, and in-mine observations. Traditional methods of control are presented, as well as innovative methods based on mining concepts developed during earlier years of coal mining history. The report can be useful to a mine operator for assessing the causes of cutter roof failure on a site-by-site basis and for predicting the probability of its occurrence. A process is presented for selecting an optimum control method that includes both traditional and innovative control techniques for each of the various causes of cutter roof failure.
Failure; Accident-prevention; Collapse; Rock-mechanics; Cutter-loaders; Control; Hazards; Mining-engineering; Coal-mines; Underground-mining
IH; Information Circular
NTIS Accession No.
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 9094