Research progress of prestressed concrete cylinder pipe

Prestressed Concrete Cylinder Pipe(PCCP) has been the preferred pipe for long-distance water transfer projects due to its high strength, high impermeability, high sealing, good durability and low maintenance costs.However, as the service life increases, PCCP will have risks such as wires broken, leakage, and pipe bursts.Once an accident occurs, it will threaten the safety of urban water supply, and lead to huge economic losses and negative social impacts.In order to promote the innovation and progress of PCCP,this paper reviews the research by domestic and foreign scholars from five aspects: structural design and analysis methods, test methods, safety impact assessment, health monitoring, detection and strengthening, and the development and application of Bar-wrapped Cylinder Concrete Pressure Pipe(BCCP).Research prospects were also carried out in terms of prestressed high-strength steel wire, mortar protective cover, anti-cracking aging of pipe body, pouring method of pipe core concrete, full-life intelligent monitoring platform and production technology level, in order to promote the technical progress and healthy development of the PCCP industry, so as to better serve the national economic construction.