| Issue |
E3S Web of Conf.
Volume 401, 2023
V International Scientific Conference “Construction Mechanics, Hydraulics and Water Resources Engineering” (CONMECHYDRO - 2023)
|
|
|---|---|---|
| Article Number | 02041 | |
| Number of page(s) | 11 | |
| Section | Ecology, Hydropower Engineering and Modeling of Physical Processes | |
| DOI | https://doi.org/10.1051/e3sconf/202340102041 | |
| Published online | 11 July 2023 | |
Upheaval buckling of underground pipelines of complex configuration located in liquefied soils
1 Tashkent Institute of Textile and Light Industry, Tashkent, Uzbekistan
2 Tashkent State Transport University, Tashkent, Uzbekistan
3 Institute of Mechanics and Seismic Stability of Structures named after M.T. Urazbayev of the Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan
* Corresponding author: ekaterinaan@mail.ru
The problem of loss of stability of underground pipelines with a middle part in the form of a straight or П-shaped part located in liquefied soils is considered in the article. The pipeline lifting process occurs under the action of buoyancy force in the liquefied soil zone and then under the action of the longitudinal compressive force that appears due to the temperature of the transported product and its pressure. The problem is solved by the finite element method. The results are presented as a table and graphs of changes in the values of transverse displacements along the coordinate depending on the pipeline geometric characteristics and the soil rheological properties. It is established that the П-shaped part is a damper against pipeline buckling.
© The Authors, published by EDP Sciences, 2023
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