坚硬顶板特厚煤层综放面区段煤柱合理宽度研究
王康,来兴平,崔峰
Study on the reasonable section coal pillar width for fully mechanized caving face with hard roof and extra-thick coal seam
煤炭工程 . 2019, (5): 43 -47 .  DOI: 10.11799/ce201905011