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Application of the Response Displacement Method to the Aseismic Analysis of Corroded Buried Pipeline

WANG Gui-xuan;FANG Ling-chao;ZHAO Jie;Civil Engineering Technology Research and Dvevlopment Center,Dalian University;  
As the transmission carriers of oil,gas,and water,buried pipelines are one of the important facilities in the field of underground engineering.With the increased usage of buried pipelines,those that are under the influence of transport medium as well as the soil and loading environment,especially metal pipelines,are prone to corrosion.After a major earthquake,apipeline with existing corrosion defects can be prone to leakage and fracture accidents,resulting in a huge waste of resources,environmental pollution,and even the death of humans and animals.Therefore,research on the seismic performance of buried corrosion pipelines has become increasingly important.This paper examines buried pipelines and explores the impacts of pipeline corrosion depth,corrosion width,and corrosion location on the seismic performance of the buried pipelines.The purpose is to provide a theoretical reference for the safety and practicability of pipelines;provide guidance on the continued use,maintenance or replacement and safety of pipelines;and pro-vide data to encourage further research on the seismic design of pipelines.This paper takes the actual project as the background and then analyzes the buried pipeline response under different parameters in the finite element software ANSYS using the seismic response displacement method.
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