Physical simulation of upper protective coal layer mining with different coal seam inclinations
Abstract Protective coal layer (PCL) mining is a preferred regional method for preventing coal and gas outbursts; stress‐relief of PCL mining is the prerequisite of pressure‐relief gas drainage. In order to study the stress‐relief effect of PCL mining on protected coal seams and determine the protec...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
Wiley
2020-09-01
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Series: | Energy Science & Engineering |
Subjects: | |
Online Access: | https://doi.org/10.1002/ese3.740 |