Abstract
The submarine pipelines that are buried in the Yellow River subaqueous delta can be subject to fluctuant local-liquefied soil caused by storm wave action, possibly causing pipeline damage. An experimental investigation was carried out in a wave flume to study the horizontal normal force on buried rigid pipelines in fluctuant liquefied soil. In this experiment, the soil bed was made of silt from the Yellow River Delta, whereas a steel pipe served as pipeline. Under the experimental conditions, the normal force range on the pipeline in fluctuant liquefied soil was several times higher than that in stable soil, specifically on the side of the pipeline exposed to the wave direction. The resultant force of the horizontal normal forces on the buried pipeline grew by about one order of magnitude after soil liquefaction.
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Acknowledgements
This study was funded by the National Natural Science Foundation of China (No. 41576039). We thank LetPub (www.letpub.com) for its linguistic assistance during the preparation of this manuscript.
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Xu, X., Xu, G., Ren, Y. et al. Horizontal Normal Force on Buried Rigid Pipelines in Fluctuant Liquefied Silty Soil. J. Ocean Univ. China 18, 1–8 (2019). https://doi.org/10.1007/s11802-019-3526-1
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DOI: https://doi.org/10.1007/s11802-019-3526-1