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Article

12 Citations

2,417 Views

22 Pages

Roof Fractures of Near-Vertical and Extremely Thick Coal Seams in Horizontally Grouped Top-Coal Drawing Method Based on the Theory of a Thin Plate

Guojun Zhang,
Quansheng Li,
Zhuhe Xu and
Yong Zhang

Sustainability2022, 14(16), 10285;https://doi.org/10.3390/su141610285

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18 August 2022

During the mining process of the near-vertical seam, there will be movement and collapse of the “roof side” rock layer and the “overlying coal seam,” as well as the emergence of the “floor side” rock layer roof whi...

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Article

2 Citations

1,631 Views

15 Pages

A Study of the Top-Coal-Drawing Law of Steeply Inclined and Extremely Thick Coal Seams in the Wudong Coal Mine

Jiantao Cao,
Longquan Wu,
Xingping Lai,
Baoxu Yan,
Haoyu Zhu and
Hao Qiao

Processes2024, 12(3), 481;https://doi.org/10.3390/pr12030481

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27 February 2024

In addressing the issue of a low drawing rate in a steeply inclined and extremely thick coal seam, this study focused on the engineering background of the +575 horizontal working faces in the Wudong Coal Mine. By utilizing physical similarity simulat...

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