Comparative analysis of hydraulic deflection pressure relief and permeability enhancement effect of soft coal seam and sandstone roof

Release time:

2021-04-26

Author:

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Key words:

Coal seam

Principle and technology of collaborative prevention and control of pressure relief-support-protection in deep rockburst roadway

Coal mine roadway crawler type slag removal loader

Principle and technology of collaborative prevention and control of pressure relief-support-protection in deep rockburst roadway

Coal mine roadway crawler type slag removal loader

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