Abstract:Buried pipeline systems are usually referred to as lifeline systems due to their support of human daily life and economic development, energy-transportation and water-transmission. The primary hazard for buried pipelines during earthquake events is permanent ground deformation (PGD). However, an important factor to control the response of the buried pipeline to PGD is the interaction between the soil and the pipeline. In this study, a centrifuge model test was conducted to investigate the effect of PGD on a pipeline. The normal pressure of the interface between pipeline and soil was measured using the smart tactile pressure sensor system, and other important parameters such as PGD, strain rate, pipeline diameter, the orientation of the pipeline and soil types were also tested to determine the influence on soil-pipeline interactions. All of the PGD, pipeline-PGD orientations, pipeline diameters, and soil types were key factors affecting the interaction between soil and pipeline. The results of this research could be used in the aseismic design of pipelines passing through the PGD.