Key Technologies for Repairing and Transforming the Sealing Tunnel of the Deep Buried TBM Main Drive
To address the equipment fault of multiple failures of the main drive seal during excavation in a TBM project with large burial depth and high ground stress,firstly,the adverse effects of large burial depth and high ground stress on the TBM main drive and the reasons for the failure of the main drive seal were analyzed,and an optimization plan for the main drive seal system was proposed.In response to the difficult problem of TBM deep excavation,measures such as adding main drive dustproof baffles and adding belt slagging plates had been proposed to prevent slag accumulation.The main drive anti slag accumulation measures and main drive sealing structure transformation plan proposed in this article based on the excavation condition of large buried depth TBM successfully solve the problem of on-site main drive sealing failure,ensure the efficient operation of on-site equipment,and provide a reference for similar TBM faults treatment in the future.
TBMmain drive seallarge burial depthrepair inside the tunnelanti slag accumulation
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