Research on the Reasonable Width of Coal Pillar Driving along Goaf under Thick Hard Roof
Wei Gu,
Dalong Xu,
Zhenfei Han
et al.
Abstract:There are fewer studies on the width of coal pillar retaining under a thick, hard roof. This paper takes the thick limestone roof in the 10110 working face of Jinniu Coal Mine as the background, taking the reasonable coal pillar width and its stability control technology as research objectives. Taking the theoretical analysis and calculation, numerical simulation to study the stress distribution along goaf under different parameters of the roof cutting, the stress distribution of the roadway, and displacement … Show more
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