Research on feasibility of double -roadway layout below coal pillar in shallow and close coal seam

For the feasibility of double -roadway layout in hypogynous coal seam in A Coal Mine of Shendong mining area when working faces in shallow and close coal seam are synchronously mined, roadway deformation and plastic zone failure characteristics below an overburden 35 m wide coal pillar are researche...

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Bibliographic Details

Published in:	Gong-kuang zidonghua
Main Author:	LYU Qingxu
Format:	Article
Language:	Chinese
Published:	Editorial Department of Industry and Mine Automation 2020-11-01
Subjects:	coal mining close coal seam coal pillar double -roadway layout stability of surrounding rock roadway displacement plastic failure
Online Access:	http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671 -251x.17618