The slurry is used as the main medium to balance the ground pressure of the tunnel excavation surface, and the muck is discharged by the slurry pumping system.

CRCHI Slurry Pressure Balance TBM uses high wear-resistant and long-life cutting tools, retractable cutter head, automatic pressurization main drive seal and high-precision air-slurry pressure balance control system to meet various difficulties and challenges, to provide a solid guarantee for the efficient and safe TBM working condition.

1)Suitable for tunnel construction with high water pressure and high ground settlement requirements; high advacing efficiency, safety and reliability;

2)Two types of slurry balancing control, direct control and indirect control type;

3)Advanced and reliable cutter head design and slurry circulation system;

4)Reliable main bearing, main drive seal and main drive reducer, with long service life and high safety factor;

5)Independently developed software integration control system and key parameter matching to ensure the performance of the TBM is safe and reliable, and easy operation.

The earth is the main medium to balance the ground pressure of the tunnel face, and the muck is discharged by the screw conveyor.

CRCHI has successively overcome many technical challenges of EPB TBM, such as freezing cutter head, real-time cutters wear monitoring, high pressure main drive sealing, automatic TBM deviation correction etc, to provide safe, intelligent, efficient and user-friendly tunnel construction machine support.

1)Suitable in clay, sandy soil to soft and hard mixed ground, with high excavation efficiency and low construction cost;

2)Multiple excavation modes such as open, semi-open and closed, each mode can be converted to each other;

3)Advanced and reliable cutter head design and ground improvement system;

4)Reliable main bearing, main drive seal and reducers with long service life and high safety factor;

5)Safe and efficient PLC control system, real-time online monitoring and data collection.