Chapter
Apr 26, 2012
Pipe Walking-Lateral Buckling Interaction
Authors: Jing Zhou [email protected], Yuxiao Liu [email protected], and Xin Li [email protected]Author Affiliations
Publication: Earth and Space 2010: Engineering, Science, Construction, and Operations in Challenging Environments
Abstract
Subsea pipelines are increasingly being required to operate at high temperatures and pressures. It is usual for lateral buckling to occur for pipe exposed on even seabed. In engineering the temperature along pipeline is nonlinear, and then with start-up/shut-down cycles pipe walking will take place. Pipe walking is a phenomenon in which start-up/shut-down cycles cause a ratcheting response in the pipeline axial displacement. A challenge for high temperature pipelines is the control of pipeline walking. In this paper pipeline walking of short straight pipeline and the interaction of pipe lateral buckling and the pipeline walking phenomenon are studied. Based on nonlinear finite element method pipeline exposed on even seabed is built. Effect of axial friction force, pressure cycling, and lateral buckling are all included. Analysis show that lateral buckling of pipeline and pressure cycling have beneficial on pipe walking, however pipe walking is increased with axial friction force increasing.
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© 2010 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, 2 Linggong Road, 116024, Dalian, China. E-mail: [email protected]
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, 2 Linggong Road, 116024, Dalian, China. E-mail: [email protected]
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, 2 Linggong Road, 116024, Dalian, China. E-mail: [email protected]
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