Failure characteristics and control technology for large‐section chamber in compound coal seams—A case study in Tashan Coal Mine
Abstract The coal production exploited from extra‐thick coal seams accounts for 45% of China's total coal production. With large coal output, the extra‐thick coal seams require that the chamber section be more than 100 m2. In case of parting (the noncoal rock, usually mudstone, sandwiched in th...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
Wiley
2020-04-01
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Series: | Energy Science & Engineering |
Subjects: | |
Online Access: | https://doi.org/10.1002/ese3.598 |