Fundamental studies of coal mine bumps in the eastern United States.
Iannacchione AT; Campoli AA; Oyler DC
Rock mechanics: proceedings of the 28th U.S. Symposium on Rock Mechanics, June 29 - July 1, 1987, Tucson, Arizona. Farmer IW, Dacmen JJK, Desai CS, Neuman SP, eds. Boston, MA: A. A. Balkema, 1987 Jun; :1063-1072
This paper describes a field study at the Olga Mine in McDowell County, West Virginia, to assess the effects of various mining practices on the control of coal mine bumps. Observations indicated that retreat mining systems that involve sequential extraction along several rows of pillars effectively redirect loads away from the pillar being mined, reducing the occurrence and severity of bumps by spreading the excess stress over a greater number of outby pillars. Other control techniques discussed include the uses of shot firing and auger drilling.
Mining; Rock mechanics; Coal mines; Coal mining; Underground mines; Retreat mining; Auger mining; Drilling; Pillar design; Pillar mechanics; Environmental stress; Environmental control
OP; Conference/Symposia Proceedings
Farmer IW; Dacmen JJK; Desai CS; Neuman SP
Rock mechanics: proceedings of the 28th U.S. Symposium on Rock Mechanics, June 29 - July 1, 1987, Tucson, Arizona