Study on the Stability of Pillars in the Room-and-Pillar Mining of Gently Inclined Close-distance Double-layer Phosphate Deposits#br#

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Study on the Stability of Pillars in the Room-and-Pillar Mining of Gently Inclined Close-distance Double-layer Phosphate Deposits#br#

LUO Binyu　LI Dazhong　LIU Xiaoyun, 　SU Yuan　LI Pengcheng　YANG Shirong

Metal Mine . 2025, (10): 20 -29 .