A fuzzy control scheme is presented according to the coal quantity in the main coal bunker, this method has a good dynamic response characteristic and is suited
Air leakage velocity in intake goaf and distribution of air leakage in mining area are de-termined by instantaneous and steady liberation of tracer gas SF6. Gas
The stability of underground opening is strongly constrained by a variety of factors.These include initial stress, structure of rock mass, and underground water
This paper has put forward energy criteria and disturbance-response criteria for rockburst. The coal pillar rockburst or rockburst at roadway and working face h