Yangzhou Dilong 1600×1600 rectangular pipe jacking machine has been successfully deployed for the Ningbo–Cixi Railway Project and efficiently completed the sectional jacking construction works. Featuring mature and stable overall performance, precise rectangular section jacking control and excellent stratum adaptability, the machine steadily advanced project construction and fulfilled all scheduled construction tasks with high standards. It fully demonstrates the comprehensive strength of the company’s rectangular pipe jacking equipment in municipal railway infrastructure projects.
As a key municipal rail transit infrastructure project in Ningbo, the Ningbo–Cixi Railway plays a vital role in improving the regional rail transit network, connecting urban and rural transportation corridors, and empowering local economic development. The project is located along major municipal transportation routes with complex construction conditions, featuring dense municipal pipelines and road networks. It imposes extremely stringent standards on settlement control, tunnelling accuracy, construction stability and safety management for underground trenchless construction. Traditional open-cut construction causes significant ground disturbance and poor site adaptability, making mechanized rectangular pipe jacking the core solution for safe, efficient and eco-friendly project construction.
Targeting the complex municipal working conditions and high-precision construction requirements of the Ningbo–Cixi Railway Project, the 1600×1600 rectangular pipe jacking machine delivers outstanding site adaptability. Adopting a standardized rectangular section design with a streamlined and reasonable structural layout, the equipment maintains stable jacking power output and is specially optimized for rectangular tunnel construction scenarios such as underground rail transit passages and supporting pipe networks. Equipped with a high-precision attitude control system, the machine dynamically adjusts tunnelling parameters in real time, effectively avoiding common urban construction risks including ground disturbance, axis deviation and forming errors. It ensures regular tunnel section profiles and qualified construction accuracy throughout the whole process, fully complying with the high-standard specifications for municipal railway projects.
Throughout the construction process, the 1600×1600 rectangular pipe jacking machine operated smoothly with a low failure rate and efficient, controllable tunnelling performance, perfectly adapting to the project’s complex construction environment. The equipment advanced all jacking procedures in an orderly manner with strict control over construction quality and safety, successfully completing the rectangular pipe jacking tunnel works with excellent construction quality and zero safety hazards. It fully highlights the stable construction performance and adaptive advantages of the equipment in municipal railway infrastructure scenarios.
The successful application of the 1600×1600 rectangular pipe jacking machine in the Ningbo–Cixi Railway Project fully verifies the equipment’s reliability and superiority in adapting to complex working conditions of municipal rail transit projects. It further enriches the company’s engineering application cases of rectangular pipe jacking equipment in the rail infrastructure sector. Meanwhile, it accumulates valuable practical experience for the construction of underground supporting works for municipal railways and high-precision rectangular trenchless projects in urban areas, continuously supporting the high-quality and green development of urban rail transit infrastructure.