000022174 001__ 22174
000022174 005__ 20170622150000.0
000022174 04107 $$aeng
000022174 046__ $$k2015-05-25
000022174 100__ $$aTsatsis, Angelos
000022174 24500 $$aBURIED PIPELINES SUBJECTED TO GROUND DEFORMATION CAUSED BY LANDSLIDE TRIGGERING

000022174 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022174 260__ $$bNational Technical University of Athens, 2015
000022174 506__ $$arestricted
000022174 520__ $$2eng$$aPermanent ground deformation is one of the most damaging hazards for buried lifelines such as gas and oil pipelines. The most frequent cause of permanent ground deformation is a landslide. Landslides can be triggered by a variety of causes, yet the factors responsible for the most damaging landslides are water and especially earthquake. The scope of this study is to investigate the response of a continuous buried pipeline subjected to ground deformation caused by landslide triggering, considering two characteristic cases: (a) the pipeline running perpendicularly to the soil movement vector and (b) the pipeline is parallel to the soil movement vector. An idealized landslide of 3D geometry is considered. Due to the inconsistency between the colossal dimensions of the landslide and the much smaller pipe geometry (a combination that would call for a numerical model of several millions elements), the problem is decoupled. In the first step, a “global” free-field model is employed to simulate the landslide evolution, ignoring the presence of the pipeline. The free field analysis provides the input for the second step, in which a “local” detailed model of the pipeline, along with the surrounding soil, is used to simulate its distress. This allows the use of adequately large elements for the global model, and reasonably small elements for the local one, circumventing the aforementioned scale-related problem.

000022174 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022174 653__ $$aPipelines, Landslide, Permanent Ground Deformation, Soil-Structure Interaction, Geotechnical Earthquake Engineering.

000022174 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022174 720__ $$aTsatsis, Angelos$$iGazetas, George$$iKourkoulis, Rallis
000022174 8560_ $$ffischerc@itam.cas.cz
000022174 8564_ $$s1729346$$uhttps://invenio.itam.cas.cz/record/22174/files/C1405.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000022174 962__ $$r22030
000022174 980__ $$aPAPER