Study of An Innovative Approach of Roof Presplitting for Gob-Side Entry Retaining in Longwall Coal Mining

Study of An Innovative Approach of Roof Presplitting for Gob-Side Entry Retaining in Longwall Coal Mining

Gob-side entry retaining (GER) is a hot issue with regard to saving resources and reducing the drivage ratio in longwall mining. This paper investigates an innovative approach of roof presplitting for gob-side entry retaining (RPGER). RPGER uses the directional cumulative blasting to split the roof...

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Bibliographic Details
Main Authors: Xingyu Zhang, Liang Chen, Yubing Gao, Jinzhu Hu, Jun Yang, Manchao He
Format: Article
Language:English
Published: MDPI AG 2019-08-01
Series:Energies
Subjects:
roof presplitting
gob-side entry retaining
retaining mechanism
numerical simulation
field test
Online Access:https://www.mdpi.com/1996-1073/12/17/3316

Internet

https://www.mdpi.com/1996-1073/12/17/3316

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