Stability characteristics of a fractured high roof under nonpillar mining with an automatically formed roadway by using a visualized discrimination approach

Abstract Nonpillar mining (NPM) with an automatically formed roadway is an emerging mining technology that does not use coal pillar retention and drivage. This technology can be used to actively control the caving height of the roof by directional cutting technology and can promote the rapid equilib...

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Bibliographic Details
Main Authors: Yajun Wang, Jianning Liu, Jun Yang, Qi Wang, Ruifeng Huang, Xichun Tian, Manchao He
Format: Article
Published: Wiley 2020-05-01
Series:Energy Science & Engineering
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