Optimal sublevel height and drawing process for horizontal sectional combined mining in steeply inclined, and closely spaced coal seam groups

Abstract The extraction of steeply inclined and closely spaced coal seams induces intense strata pressure disasters owing to cross-layer fracturing and collapse, rendering strike longwall fully mechanised mining unsuitable. An innovative horizontal sectional combined mining method with simultaneous...

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Principais autores:	Hongwei Wang, Jinyuan Bai, Jianqiang Jiao, Lechen Wang, Liwei Wang, Baolin Jiang
Format:	Artigo
Jezik:	Inglês
Izdano:	Nature Portfolio 2026-05-01
Serija:	Scientific Reports
Teme:	Steeply inclined coal seams, closely spaced coal seams Horizontal sectional mining Fully mechanized top-coal caving Sublevel height Top-coal drawing technology
Online dostop:	https://doi.org/10.1038/s41598-026-52670-w
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