The bolt support quality of coal roadways is one of the important factors for the efficiency and security of coal production. By means of a self-developed techn
Ground subsidence induced by extraction of coal seam belowground brings about changes in surface environment leading to trough and pot-hole subsidence.Pot-hole
In order to explore the influence of coal mining disturbance on the rockburst occurring in fault zone, this research constructed a mechanical model for the evol
Against the background of analyzing coal wall stability in 14101 fully mechanized longwall top coal caving face in Majialiang coal mine,based on the torque equi
A proper control and management of dust dispersion is essential to ensure safe and productive underground working environment. Brattice installation to direct t
A mechanical model to control the top-coal deformation is established in accordance with the structural characters of the gob-side entry surrounding rock for th