Top Coal Weakening by Pulse Hydraulic Fracturing and Roof Cutting by Directional Hydraulic Fracturing for Control of Hanging Roof in the Face End of Fully Mechanized Top Coal Caving
Due to the supporting effect of the coal pillar on the side of the roadway, there is often a problem of the top coal and roof in the working face end not collapsing in time. The single directional hydraulic fracturing method cannot directionally cut off the top coal of the working face end. To overc...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
GeoScienceWorld
2024-11-01
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| Series: | Lithosphere |
| Online Access: | https://pubs.geoscienceworld.org/gsw/lithosphere/article-pdf/doi/10.2113/2024/lithosphere_2024_150/7053107/lithosphere_2024_150.pdf |
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