Successful Application of EPB3200 Earth Pressure Balance Pipe Jacking Machine in Hefei Jinzhai Road Water Environment Renovation Project, Completing 3.29-kilometer Full Trenchless Construction with Complex Crossings of Urban Roads and Shiwuli River
Release time:
2026-07-25
Yangzhou Dilong Machinery’s EPB3200 Earth Pressure Balance Pipe Jacking Machine has been successfully deployed for the Jinzhai Road Intercepting and Regulating Pipe Network Project in Hefei City, Anhui Province. Tailored for urban municipal trenchless construction, the equipment delivers stable and reliable tunneling performance, supporting the efficient advancement of local pipeline upgrading and water environment improvement works.
Project Overview
The Jinzhai Road Intercepting and Regulating Pipe Network Project is a key municipal engineering project for urban sewage treatment and waterlogging remediation in Hefei. Covering a total construction length of about 3.29 kilometers, the entire project adopts full pipe jacking trenchless construction technology. This construction method eliminates large-scale road excavation, protects urban road facilities and greening landscapes, and greatly reduces disturbances to urban traffic and residents’ daily lives.
Construction Scale and Technical Configuration
The project adopts a standardized and scientific construction layout, with 14 working shafts, 8 receiving shafts and 3 newly built intercepting shafts arranged along the construction route. In view of urban complex stratum and long-distance crossing construction demands, ductile iron pipes and PCCP pipes are adopted as the main pipe jacking materials for the project, guaranteeing excellent pressure resistance, structural stability and long-term service life of the pipeline system.
The project features highly complex construction conditions, with the pipeline crossing 2 urban roads and 6 sections of the Shiwuli River. Such diverse and difficult crossing scenarios pose strict requirements on the adaptability, construction accuracy and safety of tunneling equipment. The EPB3200 Earth Pressure Balance Pipe Jacking Machine deployed on-site fully adapts to the local complex geological and crossing working conditions, achieving safe, stable and efficient trenchless construction throughout the project.
Project Significance
The completion and operation of the Jinzhai Road pipeline project will effectively improve Hefei’s urban sewage collection and drainage capacity, optimize the regional water ecological environment, and significantly upgrade the city’s flood control and waterlogging mitigation level. In addition, the stable operation of the EPB3200 pipe jacking machine in complex urban working conditions fully demonstrates the advanced performance and high reliability of Yangzhou Dilong’s trenchless equipment, laying a solid foundation for the company’s continued participation in urban municipal pipeline projects at home and abroad.
