Abstract
This paper summarizes results of both an experiment for earthquake-proof U-PVC pipeline subjected to uneven ground settlement and its numerical simulation. Through the ground settlement experiment, in which 50cm uneven ground settlement was acted on buried U-PVC pipelines, pipeline deformation and joint expansion behavior were observed. As a result, it was clarified that axial strain of the pipeline was redused due to sliding of the rubber ring type joints and slip-out preventer of the joint worked well. Furthermore, in the numerical simulation based on beam theory, relationship between transient settlement zone and pipeline response was examined.