Development of a mechanical roof breaker for ground control in longwall operations under massive roof
Tandanand, Sathit.
Development of a mechanical roof breaker for ground control in longwall operations under massive roof by Sathit Tandanand. - Washington Dept. of the Interior, Bureau of Mines 1979. - 20 p. ill. 27 cm. - Report of investigations - United States Department of the Interior, Bureau of mines 8416 . - Report of investigations (United States. Bureau of Mines) 8416. .
Bibliography: p. 17-18.
79018531
Ground control (Mining)
Rock mechanics
TN23 TN288 / .U43 no. 8416
622/.08 s 622/.26
I 28.23:8416
Development of a mechanical roof breaker for ground control in longwall operations under massive roof by Sathit Tandanand. - Washington Dept. of the Interior, Bureau of Mines 1979. - 20 p. ill. 27 cm. - Report of investigations - United States Department of the Interior, Bureau of mines 8416 . - Report of investigations (United States. Bureau of Mines) 8416. .
Bibliography: p. 17-18.
79018531
Ground control (Mining)
Rock mechanics
TN23 TN288 / .U43 no. 8416
622/.08 s 622/.26
I 28.23:8416