Our product NPT3700 is used for the southern section of tunnels 3 # to 2 # in this project, with a total length of 952 meters. The first 496 meters was constructioned using the Pipe jacking method, while the last 456 meters was constructed using the shield tunneling method. It passes through two power tower bases, two sewage pipes, and the Nan Cao railway tunnel with a height difference of 3.41m.
This project is the first power tunnel project in North China to adopt the "Pipe jacking-Shield tunneling" construction method, and also the longest single line pipe jacking distance project in North China.
Get a solution| Project Site： | Tianjin，China | Project Time： | 2020 |
| Project Application： | Electric tunnel | Tunnel Length： | 952m |
| Equipment Model： | NPT3700 | Equipment Diameter： | 3700mm |
| Lining Method： | Pipe Jacking+Shield Erector | Project Highlights： | Pipe Jacking + Shield +Super-near Construction |
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