The serrated roller cutter can replace the tear blade
Release time:
2025-05-15
The project is divided into pedestrian zones and vehicle zones. It requires traversing rivers, lakes, mud, and sand, which are highly abrasive to the TBM and cutting tools.
Dongguan Metro Line 1 is the longest line in the Dongguan Metro system, with 5 interchange stations. It connects to Guangzhou Metro Huangpu Passenger Port Station at its northwestern end in Mayong Town and to the Shenzhen Metro Line 6 branch line at Kexuecheng East Station at its southeastern end in Huangjiang Town. It passes through 10 towns and streets: Mayong Town, Wangniudun Town, Daojiao Town, Wanjiang Street, Nancheng Street, Dongcheng Street, Daling Mountain Town, Songshan Lake Development Zone, Dalang Town, and Huangjiang Town.
The project is divided into pedestrian and vehicle sections, and needs to pass through rivers, lakes, silt, and sand, which are highly abrasive to the tunnel boring machine and cutter tools.
Cutter Configuration
18-inch studded roller cutter, 18-inch replaceable ripping cutter paired with a 6.8-meter TBM
Excavation Distance
The right-line of the initial pedestrian section has been completed without changing the cutter.
Challenges
Passing through water towns and the urban core, crossing complex strata including silt and under roads and bridges.
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