Model test based soil spring model and application in pipeline thermal buckling analysis |
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Authors: | Xi-feng Gao Run Liu Shu-wang Yan |
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Institution: | GAO Xi-feng,LIU Run 1 and YAN Shu-wang State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300072,China |
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Abstract: | The buckling of submarine pipelines may occur due to the action of axial soil frictional force caused by relative movement of soil and pipeline, which is induced by the thermal and internal pressure. The likelihood of occurrence of this buckling phenomenon is largely determined by soil resistance. A series of large-scale model tests were carried out to facilitate the establishment of substantial data base for a variety of burial pipeline relationships. Based on the test data, nonlinear soil spring can be ad... |
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Keywords: | buried submarine pipeline upheaval buckling model test initial imperfection FEM |
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