Study on the Wear Resistance Problem of Cutter Head and Large Ring in Long-Distance Hard Rock Formation Excavation of Slurry Shield
In order to promote regional economic integration and strengthen inter-city resource allocation and industrial cooperation,the construction of large-diameter and long-distance intercity railways in the relatively economically developed South China region is gradually increasing.Taking the long-distance cross-sea tunnel project in the machine front section of the Guangzhou-Dongguan-Shenzhen intercity railway as an example,the engineering geology is dominated by full-section hard rock,and there are few similar projects that can be used for reference.Based on this,the paper focuses on the wear problem of cutter head and large ring in long-distance hard rock formation excavation of large diameter slurry shield,analyzes the wear formation mechanism,and puts forward the disposal scheme and pre-control measures,aiming to provide a technical reference for the construction of more and more long-distance hard rock shield tunnels with large-section of similar intercity railways.
slurry shieldlong-distance full-section hard rockwear mechanism of cutter head and large ringdisposal schemepre-control measures
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