000021849 001__ 21849
000021849 005__ 20170622131308.0
000021849 04107 $$aeng
000021849 046__ $$k2017-06-15
000021849 100__ $$aPour, Farnoud Farzanegan
000021849 24500 $$aINVESTIGATING THE EFFECT OF USING SOIL BENTONITE WALL ON DAMAGE MITIGATION OF STEEL BURIED PIPELINES SUBJECTED TO REVERSE FAULT RUPTURE

000021849 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021849 260__ $$bNational Technical University of Athens, 2017
000021849 506__ $$arestricted
000021849 520__ $$2eng$$aAs pipelines pass from large geographical regions, their passage through areas with active faults in seismic regions might be inevitable. On the other hand, map of active faults is faced with many uncertainties and it is not possible to estimate the precise place of fault, angle of fault and the fault line. Thus, as lifelines, pipelines are vulnerable to great dangers during an earthquake and resulting permanent ground deformations known as PGD. The previous earthquakes such as Chi-Chi (1999) and Wenchuan (2008) showed a wide ranges of damages caused to various structures subjected to reverse fault rupture. The aim of this study is to investigate the effect of using soft deformable wall (in order to diverting rupture path and absorbing the tectonic deformation) in the response of buried pipelines subjected to reverse fault rupture considering two cases: a) pipeline parallel to fault line b) pipeline perpendicular to fault line. In this method, a thick diaphragm-type soil bentonite wall (SBW) is used in the fault diversion path in order to absorb the fault movements. Three-dimensional finite element model including steel buried pipe in dense sand subjected to reverse fault rupture is considered. The results indicate that using soil bentonite wall can remarkably mitigate the damages caused to pipeline in parallel case. In perpendicular case, the location of damages on buried pipeline is confined in a small area around the SBW which is of great importance in quick discovery of pipeline’s damaged section location in order to quick repair and return of pipeline to service.

000021849 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021849 653__ $$aSteel Buried Pipeline, Reverse Fault Rupture, Three Dimensional Finite Element Model, Soil Bentonite Wall, Damage Mitigation

000021849 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021849 720__ $$aPour, Farnoud Farzanegan$$iFadaee, Meysam
000021849 8560_ $$ffischerc@itam.cas.cz
000021849 8564_ $$s1474419$$uhttps://invenio.itam.cas.cz/record/21849/files/18146.pdf$$yOriginal version of the author's contribution as presented on CD, section: [RS07] Geotechnical earthquake engineering
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000021849 962__ $$r21500
000021849 980__ $$aPAPER