A study on the effects of slope grade on the soil-pipeline interaction loading

Mohammad Katebi, Pooneh Maghoul, James Blatz, Dharma Wijewickreme, Kshama Roy

In the proceedings of: GeoSt. John's 2019: 72nd Canadian Geotechnical Conference

Session: Pipelines

ABSTRACT: In this work, a numerical model is calibrated using the force-displacement data of Trautmann et al. (1985). The numerical technique is implemented to study the effects of slope angle on soil-pipeline interaction loading. For this purpose, the pipe is displaced in horizontal, upward and oblique directions and force-displacement curves are plotted for each analysis. The results show that the existing p-y curves of soil-pipeline interaction available in the design guidelines might be unconservative when the pipe is buried in a slope. The soil displacement contours, plotted for each analysis, demonstrate the mechanism of soil failure against the pipe displacement. This preliminary numerical study highlights the importance of updating the force-displacement curves of soil-pipeline interaction to take into consideration the slope inclination.

RÉSUMÉ: Dans cet article, un modèle numérique est calibré en utilisant des données de force-déplacement de Trautmann et al. (1985). La technique numérique est implémentée pour étudier les effets de l'inclinaison des pentes sur le chargement de l'interaction sol-pipeline. À cette fin, le tuyau est déplacé dans les directions horizontale, ascendante et oblique et des courbes de force-déplacement sont tracées pour chaque analyse. Cette analyse numérique montre que les courbes actuelles de p-y de l'interaction sol-pipeline sont non-conservatrices lorsque le tuyau est enterré dans une pente. Les contours de déplacement du sol, tracés pour chaque analyse, démontrent clairement le mécanisme de rupture du sol contre le déplacement du tuyau. Cette étude numérique met en --

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Cite this article:
Mohammad Katebi; Pooneh Maghoul; James Blatz; Dharma Wijewickreme; Kshama Roy (2019) A study on the effects of slope grade on the soil-pipeline interaction loading in GEO2019. Ottawa, Ontario: Canadian Geotechnical Society.

@article{Geo2019Paper330,author = Mohammad Katebi; Pooneh Maghoul; James Blatz; Dharma Wijewickreme; Kshama Roy,title = A study on the effects of slope grade on the soil-pipeline interaction loading,year = 2019}