000021699 001__ 21699
000021699 005__ 20170622131300.0
000021699 04107 $$aeng
000021699 046__ $$k2017-06-15
000021699 100__ $$aChatzidakis, Dionysios
000021699 24500 $$aOFFSHORE NATURAL GAS PIPELINES SUBJECTED TO KINEMATIC DISTRESS

000021699 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021699 260__ $$bNational Technical University of Athens, 2017
000021699 506__ $$arestricted
000021699 520__ $$2eng$$aHydrocarbons are undoubtedly the main energy source of the twenty-first century. Over the last decades the increase in energy needs has led to the exploitation of an increasing number of offshore natural gas deposits. Typically, the long distances between natural gas deposits and urban and industrial centres necessitate the use of offshore pipelines. Such pipelines are very important infrastructures and any possible damage can cause serious problems and devastating consequences. Geohazards, such as strong ground motion, active faults, tsunamis, etc, consist crucial threats that an offshore pipeline has to overcome. Especially, kinematic distress caused by active faults or submarine landslides can impose a great risk to offshore pipelines due to the substantial permanent ground deformations. Furthermore, the extended areas that are affected by such phenomena, as well as the adverse submarine soil conditions, are also detrimental factors for the integrity of the pipelines. For this purpose, the aim of this work is to study numerically, utilizing the finite element method, the kinematic distress ) of an offshore natural gas pipeline due to a submarine landslide. Firstly, the developed numerical models are validated using available analytical solutions, and subsequently various parameters that affect the examined problem are investigated. The detailed parametric analysis covers among others, the impacted force on the pipeline, the landslide length, internal pressure levels, slope inclinations and diameter to thickness ratios.

000021699 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021699 653__ $$aNatural gas, offshore pipelines, geohazards, submarine landslides, mitigation measures, numerical simulations.

000021699 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021699 720__ $$aChatzidakis, Dionysios$$iPsarropoulos, Prodromos$$iTsompanakis, Yiannis
000021699 8560_ $$ffischerc@itam.cas.cz
000021699 8564_ $$s503554$$uhttps://invenio.itam.cas.cz/record/21699/files/17547.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS11] Uncertainty quantification across multiple scales for Solid Mechanics
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000021699 962__ $$r21500
000021699 980__ $$aPAPER