Nonlinear finite-element analysis of soil-pipe interaction for laterally-loaded buried offshore pipelines

Hansini EM Mallikarachchi, Loizos Pelecanos, Kenichi Soga

Research output: Contribution to conferencePaper

Abstract

Secure transportation of oil and gas over large distances means that steel pipes need to pass through different regions and conditions in order to reach onshore processing plants. The long distance, on which the pipelines lay, implies that the pipe material is subjected to a variety of weather conditions and associated temperatures. In an event of submarine landslide, the pipe may be subjected to large lateral force due to moving ground. Different parameters affect lateral movements and uplift of the pipes and their effects need to be addressed carefully. This paper presents a numerical study using nonlinear coupled hydro-mechanical finite element analysis aiming to investigate the effects of loading rate, hydraulic boundary conditions and soil strength on the soil-structure interaction involved in lateral movements of pipelines.
Original languageEnglish
Publication statusPublished - Jun 2018
Event9th European Conference on Numerical Methods in Geotechnical Engineering - Porto, Portugal
Duration: 25 Jun 2018 → …
http://www.numge2018.pt/

Conference

Conference9th European Conference on Numerical Methods in Geotechnical Engineering
CountryPortugal
CityPorto
Period25/06/18 → …
Internet address

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Offshore pipelines
Pipe
Soils
Finite element method
Pipelines
Soil structure interactions
Landslides
Steel pipe
Hydraulics
Boundary conditions
Processing
Gases
Temperature

Cite this

Mallikarachchi, H. EM., Pelecanos, L., & Soga, K. (2018). Nonlinear finite-element analysis of soil-pipe interaction for laterally-loaded buried offshore pipelines. Paper presented at 9th European Conference on Numerical Methods in Geotechnical Engineering, Porto, Portugal.

Nonlinear finite-element analysis of soil-pipe interaction for laterally-loaded buried offshore pipelines. / Mallikarachchi, Hansini EM; Pelecanos, Loizos; Soga, Kenichi.

2018. Paper presented at 9th European Conference on Numerical Methods in Geotechnical Engineering, Porto, Portugal.

Research output: Contribution to conferencePaper

Mallikarachchi, HEM, Pelecanos, L & Soga, K 2018, 'Nonlinear finite-element analysis of soil-pipe interaction for laterally-loaded buried offshore pipelines' Paper presented at 9th European Conference on Numerical Methods in Geotechnical Engineering, Porto, Portugal, 25/06/18, .
Mallikarachchi HEM, Pelecanos L, Soga K. Nonlinear finite-element analysis of soil-pipe interaction for laterally-loaded buried offshore pipelines. 2018. Paper presented at 9th European Conference on Numerical Methods in Geotechnical Engineering, Porto, Portugal.
Mallikarachchi, Hansini EM ; Pelecanos, Loizos ; Soga, Kenichi. / Nonlinear finite-element analysis of soil-pipe interaction for laterally-loaded buried offshore pipelines. Paper presented at 9th European Conference on Numerical Methods in Geotechnical Engineering, Porto, Portugal.
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