Critical Height of Unfilled Zone in Underlying Gob Piles

To address problems associated with mining above gob piles in the Chinese midwest mining area, a mechanic model for a coal pillar was established based on the displacement variation method. Additionally, the effect of critical unfilled zone height in the underlying gob (UZHUG) on the coal pillar was...

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Bibliographic Details
Main Authors: Xiaoyong Yi, Weibing Zhu, Shan Ning, Laolao Wang, Zeqiang Luo
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2021/6634295
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