Underground empty roadway passing method, slurry and roadway
The invention discloses an underground empty roadway passing method, slurry and a roadway, relates to the field of excavation, and aims to solve the technical problem that the safety of constructors is seriously threatened by an empty roadway passing method. According to the underground empty roadwa...
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Main Authors | , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
25.03.2022
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Subjects | |
Online Access | Get full text |
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