In order to enhance the excavation efficiency of an EPB/TBM dual-mode shield machine and minimize disc cutter wear,the study was conducted on the performance of disc cutters along the Intercity Railway from Airport East Station to Huangmabu Station,Shenzhen.The research focused on the full-section hard rock strata from ZDK8+583.0 to ZDK8+359.8 on the left side of the tunnel.Initially,the study analyzed cutter replacement conditions and wear patterns based on different functions and types of disc cutters to determine optimal performance criteria.Subsequently,the service life of the disc cutters under optimal conditions was evaluated to guide replacement scheduling.Finally,a tool information management system tailored to the project's requirements was established.The findings highlight that China Railway's wide-blade disc cutter is well-suited for excavating this specific formation.The implemented tool management system effectively manages comprehensive information about the tools,which helps ensure cost-effective and efficient onsite operations.This research serves as a practical guide for choosing disc cutters for shield tunneling machines.It promotes better information management practices for disc cutters,leading to safer and more efficient operations.
rail transitfull-section hard rockdisc cutter performancedisc cutter wearservice lifetool information management system
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