| Issue |
E3S Web Conf.
Volume 515, 2024
International Scientific Conference Transport Technologies in the 21st Century (TT21C-2024) “Actual Problems of Decarbonization of Transport and Power Engineering: Ways of Their Innovative Solution”
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|---|---|---|
| Article Number | 04009 | |
| Number of page(s) | 13 | |
| Section | Mechanical Engineering and New Energy Technologies | |
| DOI | https://doi.org/10.1051/e3sconf/202451504009 | |
| Published online | 12 April 2024 | |
Study of the uplift of buried pipelines in liquefied soils based on the earthquake record
1 Tashkent Institute of Textile and Light Industry, Shaxdjaxana, 5, 100100 Tashkent, Uzbekistan
2 Tashkent State Transport University, Temiryulchilar, 1, 100060. Tashkent, Uzbekistan
3 Institute of Mechanics and Seismic Stability of Structures named after M.T. Urazbaev, Uzbekistan Academy of Sciences, street Durmon Yuli, 40, 100125 Tashkent, Uzbekistan
* Corresponding author: ekaterinaan1986@gmail.com
The uplift of a straight buried pipeline with a middle part located in liquefied soil was considered in the article. The process of uplift of the pipeline under the action of Archimedes’ force in the liquefied soil zone and longitudinal compressive force arising due to the temperature difference of the transported product and its internal pressure and also based on the Gazli earthquake record are investigated. To solve the problem the finite element method is used with the incremental refinement of the solution by the method of successive approximations. In the deformation process takes into account the separation of the pipeline from the base and the decrease of soil pressure along the length of the pipeline during the uplift process, taking into account the increment of displacement from the previous step. The results of solving the problem are presented in the form of graphs and their analysis for specific numerical parameters of the pipeline and its interaction with the surrounding soil.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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