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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Autors principals:	Hongwei Wang, Jinyuan Bai, Jianqiang Jiao, Lechen Wang, Liwei Wang, Baolin Jiang
Format:	Artigo
Idioma:	Inglês
Publicat:	Nature Portfolio 2026-05-01
Col·lecció:	Scientific Reports
Matèries:	Steeply inclined coal seams, closely spaced coal seams Horizontal sectional mining Fully mechanized top-coal caving Sublevel height Top-coal drawing technology
Accés en línia:	https://doi.org/10.1038/s41598-026-52670-w
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