Time-History Analysis of Collapse Impacts on Pipeline Buried in Different Depths
DOI:
https://doi.org/10.15273/ijge.2017.04.013Keywords:
Dynamic Time-History Analysis, collapse, pipeline, buried depth, ANSYSAbstract
This research explores a numerical simulation analysis method for rock-collapse impacts on pipelines. Dynamic Time-History Analysis of the Transient Full-Newton‘s Method is conducted to gain the deformation, axial force, shear and moment of a 0.8 m diameter pipe under rock collapse when buried in six depths interval between 0.5 ~ 3 m. The results show a significant reduction in pipeline damages when the buried depth is 2.0 m, deeper than that, a gentle decrease appears in the response curves. This result indicates that in potential geological disaster areas, the buried depth of an oil / gas pipeline should be no less than 2.0 m. This research provides a practical guideline to pipeline construction in potential disaster areas.
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