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Permanent ground deformation (PGD) caused by earthquake is a significant hazard for buried pipelines. A new concept of damage mitigation for buried pipelines subject to PGD is proposed. Expand polystyrene (EPS) geofoam is used as flexible material to wrap pipelines. While the fault moving, EPS geofoam provide more compressive deformation than the soil and pipeline, thus the deformation and damage...
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