Finite Element Analysis Study Of PCCP

Since China introduced PCCP's production technology in 1985, PCCP's manufacturing process has been basically clearance, equipment manufacturers also have a relatively level, Only the pipe structure study was almost a total blank, Engineering and technical personners were perplexy of the structural design methods used in the production process and the problem of Production, Experts at home and abroad ,engineering and technical personners have been worry have been worry of pipe structural reliability and durability in varying degrees. Therefore, it is necessary to in-depth study of the PCCP structure, Develop scientific design and manufacturing standards in line with the national conditions of China,and guid production through scientific research and practice.This paper combined with the new situation needs of the PCCP application in China's water conservancy projects, including important projects building such as south-to-north water transfer project. We focus on the pipe structure of finite element analysis. Based on the provision of technical support for the establishment and improvement of China's PCCP design specifications and design procedures,and promote the development and progress of China's PCCP scientific and technological study.In view of the serious fact that lags behind the fact in this area , This paper collected many literatures on PCCP manufacturing and construction aspects at home and abroad , established pipe structure analysis model simulation analysis with ANSYS software,based on the finite element theory and reference reinforced concrete structure and pressure pipe structure analysis. Papers combined with PCCP pipe structural design, Considered the model of nonlinear materials and nonlinear state, and also taking into account the different materials concorde work. This paper calculated the PCCP deformation and stress changes in the process of wrapping process and pipeline construction , described the pipe cracks expansion trend in the whole process.