Rectangular Tunneling Machine
Rectangular pipe jacking machines are increasingly used in municipal applications because of their adaptability to soft soils and shallow overburdens. These machines also provide higher space utilization compared to conventional circular pipe jacking machines.
Technical Specifications
Product Overview
High-Efficiency Rectangular Tunneling
This rectangular pipe jacking machine is engineered for municipal infrastructure, offering superior space utilization compared to conventional circular designs. It is highly adaptable to soft soil conditions and shallow overburdens, ensuring minimal surface disruption during urban construction. Advanced features, including articulated steering and high-coverage cutterheads, provide precise, reliable excavation in diverse geological environments.
Technical Features
Performance Advantages
- 90% cross-section coverage rate via multi-cutterhead arrangement
- Hard alloy ripper bits and cutting knives for weathered granite
- Articulated cylinders for precise directional control
- Block-design shield for high-efficiency handling
- Equal-thrust twin-stage cylinders to save launch space
- Optional bentonite friction reduction and intermediate jacking
- Geological Compatibility
- Soft soilArtificial fillClaySiltWeathered graniteGravel cohesive soil
Project References
Project Track Record
| Project Name | Dimensions (mm) | Geology | Units Used |
|---|---|---|---|
| Shenzhen Underground Passage | 10200*6600 | Gravel cohesive soil, weathered granite | 1 |
| Nantong Metro Line 1 | 7400*4900 | Artificial fill, clay, silt | 1 |
| Guangzhou Metro Line 10 | 7700*5100 | Gravel cohesive soil, weathered granite | 2 |
| Hangzhou Metro Line 3 | 3060 | Mucky clay, mucky silty clay | 1 |
