Design of pipediameter of tubular textile composite for pipeline rehabilitation

In order to avoid the creases and ret ractation of the tubular textile composite in the pipeline because of design irrationality of pipediameter of tubular textile composite, the principle of the design was int roduced, and the elasticity and hot shrinkage property of the tubular textile composite as the key factors were proposed. The strain in the circular direction was analyzed by the finite element when the tubular textile composite was inversed. The results show that the design data of the pipediameter should be adjusted depending on the elasticity of the tubular textile composite. The hot shrinkage property was analysed by the software of SPSS and a model related with hot shrinkage, temperature and time was established.