Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2759

Full Length Research Paper

Use of emperical approaches and numerical analyses in design of buried flexible pipes

    Emre Akinay* and Havvanur Kilic
  Yildiz Technical University, Department of Geotechnical Engineering, Davutpasa Campus, 34220, Esenler, Ä°stanbul, Turkey.
Email: [email protected]

  •  Accepted: 22 November 2010
  •  Published: 31 December 2010




In this article, vertical and horizontal deflections in 18 thermoplastics pipes buried under high fills within the scope of Ohio University project were analyzed by using the Iowa equation which is a traditional approach in design of buried flexible pipes, approaches derived from this equation and the method developed by German Standards. During the investigation, the results obtained through these methods were evaluated by taking pipe and backfill material into account.  Furthermore, the behavior of thermoplastic pipes and burial medium were 2D modeled and analyzed with finite element method. The results determined through analyses conducted with the finite elements method as well as empirical approaches were compared with field measurements and evaluated.


Key words: Flexible pipe, deflection, modified Iowa equation, German method, ATV, PLAXIS analysis.