Stability evolution mechanisms and control strategies for lower and upper trapezoidal blocks in fully mechanized top-coal caving faces of extra-thick coal seams

Stability evolution mechanisms and control strategies for lower and upper trapezoidal blocks in fully mechanized top-coal caving faces of extra-thick coal seams

In underground coal mining operations, particularly in fully mechanized top-coal caving (FMTC) faces of extra-thick coal seams, structural instability after key stratum fracturing will cause severe deformation and damage to the surrounding rock mass of the working face. The methods of field investig...

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Bibliographic Details
Main Authors: Binbin Qin, Fulian He, Qinghua Zhang, Zhijun Zhang, Guoxi Sun, Xiaohu Liu
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-05-01
Series:Frontiers in Earth Science
Subjects:
extra-thick seam
periodic pressure
lower and upper trapezoidal blocks
structural instability
surrounding rock control
Online Access:https://www.frontiersin.org/articles/10.3389/feart.2025.1586733/full
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