Interactions between multiple seam longwall and room- and-pillar operations -- a case study in Boone County, WV. By Gregory J. Chekan and Rudy J. Matetic
Contributors: Matetic, R.J.
Publisher: U.S. Dept. of the Interior
Place of publication: Washington
Language: eng
Number of pages: 14
Subjects: Longwall mining - Environmental aspects; Ground control (Mining) - Case studies
Notes: 11