Numerical Analysis and Experimental Study of Hard Roofs in Fully Mechanized Mining Faces under Sleeve Fracturing

Sudden falls of large-area hard roofs in a mined area release a large amount of elastic energy, generate dynamic loads, and cause disasters such as impact ground pressure and gas outbursts. To address these problems, in this study, the sleeve fracturing method (SFM) was applied to weaken a hard roof...

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Bibliographic Details
Main Authors: Zhitao Zheng, Ying Xu, Desheng Li, Jianghui Dong
Format: Article
Language:English
Published: MDPI AG 2015-11-01
Series:Minerals
Subjects:
Online Access:http://www.mdpi.com/2075-163X/5/4/0523

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