In the construction of the filling gob-side entry retaining in a lane,we utilize the self-slide natural phenomenon of a falling gangue in an inclined coal seam
A simulation of stratification and penetration was performed over a range of structural parameters that included screen width,aperture size,inclination angle,an
A discrete elemental method was used to study the thickness of conglomerate layer in a full thick seam mining activities under the influence of the law,pointing