Study on Gas Extraction Technology for Goaf Using L-Shaped Borehole on the Ground
This study aimed to examine gas extraction technology in the goaf of an L-shaped borehole in the mining fissure zone of a short-distance coal seam group. The numerical simulation method was used to analyze the failure law of overlying rock during mining, and a mathematical model was established for...
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Format: | Article |
Language: | English |
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MDPI AG
2024-02-01
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Series: | Applied Sciences |
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Online Access: | https://www.mdpi.com/2076-3417/14/4/1594 |