Effects of time between exposure and support on mine roof stability, Bear Coal Mine, Somerset, Colo.
By: by Daryl E. Radcliff and Raymond M. Stateham
Contributors: Stateham, Raymond M., joint author; United States. Bureau of Mines
Series: Report of investigations - Bureau of Mines ; 8298
Publisher: Dept. of the Interior, Bureau of Mines
Published: 1978
Place of publication: [Pittsburgh, Pa.]
Language: eng
Number of pages: 13
Subjects: Coal mines and mining -- Safety measures; Mine timbering; Rock mechanics
Notes: Bibliography: p. 13