Stability of goaf-side entry driving in 800-m-deep island longwall coal face in underground coal mine
Abstract
Goaf-side entry driving in underground coal mines could greatly improve coal recovery rates. However, it becomes more difficult to maintain stability, especially in deep coal mines. Pillar width plays a pivotal role in the stability of goaf-side entry driving. To obtain a reasonable and appropriate narrow pillar width, theoretical calculations of the widths of mining-damaged zone and limit equilibrium zone in the pillar are derived according to...
Paper Details
Title
Stability of goaf-side entry driving in 800-m-deep island longwall coal face in underground coal mine
Published Date
Jan 1, 2016
Volume
9
Issue
1
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