松软厚煤层大采高工作面片帮危险区分类研究
孔祥义, 陈全秋, 崔凯
Classification Research of Rib Spalling Risk area in High Caving Face of Loosen soft seam
煤炭工程 . 2019, (7): 67 -71 .  DOI: 10.11799/ce201907015