Research on Combined Support Technology for Tunneling Through Fault and Fractured Zones
Based on the structural composition of a certain mine excavation roadway passing through a fault and fractured zone,this paper proposes the key points of combined support technology.By adopting pre grouting,U-shaped steel frame shed,and steel mesh spraying combined support methods,the effectiveness of support work in the fault and fractured zone is improved,the sinking rate of the trough roof is effectively controlled,and the safety of the entire tunnel excavation environment is ensured.This provides relevant reference and reference for similar work in the future.
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