en.Wedoany.com Reported - Recently, the 13-meter-class large-diameter slurry balance shield "Tianyou," independently developed by CRCHI, successfully excavated over 2000 meters on the new Guangzhou Station to Guangzhou South Station link line project in Guangdong Province, China. The machine has consistently exceeded the client's planned monthly excavation targets for several consecutive months.
The "Tianyou" is responsible for excavating a 4,196-meter-long section between the Xilang and Sanshan shafts. The tunnel has a maximum burial depth of 79.5 meters, with complex geological conditions primarily characterized by weakly weathered argillaceous sandstone and siltstone, interspersed with areas of strongly weathered strata and calcareous sandstone. It also requires crossing multiple risk sources such as subways, viaducts, waterways, and docks. Long-distance tunneling poses significant construction challenges and demands high safety control standards.
Addressing these project challenges, CRCHI's project team, in collaboration with China Railway 18th Bureau Group, carried out special optimization and upgrades for the "Tianyou" shield. The equipment features a 1 MPa main drive seal and added main drive extension functionality, facilitating efficient tool changes and fully meeting excavation requirements under the 79.5-meter deep burial condition. The machine has operated efficiently and stably during excavation, effectively enhancing construction adaptability and operational safety under complex geological conditions.
During the machine's delivery, assembly, and commissioning, CRCHI's on-site service team worked closely with the construction party to formulate detailed operational plans and complete the assembly and commissioning tasks before the shield launch. The professionalism of the service team earned recognition from the client.
The "Tianyou" shield machine's successful breakthrough of the 2000-meter mark demonstrates CRCHI's expertise in the R&D, manufacturing, and engineering services of large-diameter slurry shield machines, providing critical equipment support for the construction of Guangzhou's high-speed rail network.
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