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Interactive Behavior between Frost Bulb and Chilled Pipe by an Axially-Symmetric Freezing Experiment
It is known that chilled gas pipelines buried at a boundary between permafrost and non-permafrost are subject to severe bending deformation since they are held tightly in the permafrost whereas the growth of frost bulbs in the non-permafrost region causes frost heave of the pipes. However, the flexural rigidity and the behavior of the pipeline and the surrounding frost bulb as a composite structure have not yet been studied, although they are important factors in evaluating structural safety and stability. The purpose of this study is to experimentally determine the interactions between a chilled gas pipeline and a frost bulb under the simplified condition of axial symmetry, and also to evaluate the adfreeze strength of the frost bulb and its dependence on boundary stress and temperature.
Interactive Behavior between Frost Bulb and Chilled Pipe by an Axially-Symmetric Freezing Experiment
It is known that chilled gas pipelines buried at a boundary between permafrost and non-permafrost are subject to severe bending deformation since they are held tightly in the permafrost whereas the growth of frost bulbs in the non-permafrost region causes frost heave of the pipes. However, the flexural rigidity and the behavior of the pipeline and the surrounding frost bulb as a composite structure have not yet been studied, although they are important factors in evaluating structural safety and stability. The purpose of this study is to experimentally determine the interactions between a chilled gas pipeline and a frost bulb under the simplified condition of axial symmetry, and also to evaluate the adfreeze strength of the frost bulb and its dependence on boundary stress and temperature.
Interactive Behavior between Frost Bulb and Chilled Pipe by an Axially-Symmetric Freezing Experiment
Kanie, Shunji (author) / Okamoto, Hikaru (author) / Sato, Motohiro (author) / Akagawa, Satoshi (author)
14th Conference on Cold Regions Engineering ; 2009 ; Duluth, Minnesota, United States
Cold Regions Engineering 2009 ; 129-138
2009-08-27
Conference paper
Electronic Resource
English
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