Morphological characteristics and permeability evolution of deep mine gas drainage boreholes
Structural coal has low permeability and high gas content. The increase of mining depth seriously restricts the safe mining of deep mines. Hydraulic flushing is the main means of gas extraction. The shape of the hydraulic flushing hole is an important basis to determine the pumping radius, which is...
| Main Authors: | , , , , , |
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| פורמט: | Article |
| שפה: | English |
| יצא לאור: |
Frontiers Media S.A.
2022-08-01
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| סדרה: | Frontiers in Earth Science |
| נושאים: | |
| גישה מקוונת: | https://www.frontiersin.org/articles/10.3389/feart.2022.906923/full |