The stability of coal pillars in underground coal mining is pivotal to maintaining the integrity of mine workings and protecting overlying strata. Pillar stability analysis encompasses the assessment ...

With the gradual depletion of coal resources in eastern mining areas in China, the strategic focus of coal development has rapidly shifted to northwest mining areas characterized by superior ...

This appendix presents additional details on the individual processes that are involved in extraction of coal from surface and underground mines, and the subsequent beneficiation of the coal in coal ...