Interactions Between Multiple Seam Longwall and Room-and-pillar Operations
Author : Gregory J. Chekan
Publisher :
Page : 20 pages
File Size : 46,77 MB
Release : 1990
Category : Ground control (Mining)
ISBN :
Author : Gregory J. Chekan
Publisher :
Page : 20 pages
File Size : 46,77 MB
Release : 1990
Category : Ground control (Mining)
ISBN :
Author : Gregory J. Chekan
Publisher :
Page : 40 pages
File Size : 13,4 MB
Release : 1993
Category : Ground control (Mining)
ISBN :
Author :
Publisher :
Page : 512 pages
File Size : 31,87 MB
Release : 1993
Category : Natural gas
ISBN :
Author :
Publisher :
Page : 410 pages
File Size : 50,36 MB
Release : 1925
Category : Mines and mineral resources
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 44 pages
File Size : 27,86 MB
Release : 1993
Category : Mines and mineral resources
ISBN :
Author : United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies
Publisher :
Page : 890 pages
File Size : 47,49 MB
Release : 1994
Category : United States
ISBN :
Author :
Publisher :
Page : 1194 pages
File Size : 37,23 MB
Release : 1993
Category : Government publications
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 90 pages
File Size : 34,31 MB
Release : 1995
Category : Mineral industries
ISBN :
Author : Gregory J. Chekan
Publisher :
Page : 24 pages
File Size : 35,76 MB
Release : 1989
Category : Longwall mining
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 182 pages
File Size : 10,72 MB
Release : 1992
Category : Fuel
ISBN :