Subsidence control method by inversely-inclined slicing and upward mining for ultra-thick steep seams
Volume: 32, Issue: 1, Pages: 103 - 112
Published: Jan 1, 2022
Abstract
Ultra-thick steep coal seam mining will inevitably lead to the increase of greater and violent ground subsidence and deformation. A subsidence control method by inversely-inclined slicing and upward mining is proposed in this paper. By this method, the sequence of collapse of overlying strata and the direction of propagation of strata movement are changed, the extent of roof-side deformation thereby is lessened, and boundary angle of roof-side...
Paper Details
Title
Subsidence control method by inversely-inclined slicing and upward mining for ultra-thick steep seams
Published Date
Jan 1, 2022
Volume
32
Issue
1
Pages
103 - 112
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