New design method of polymer liners subjected to external pressure for rigid pipe rehabilitation

K. M. El-Sawy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Most damaged pipelines are structurally safe, but due to hydraulic requirements they require renovations. One solution is to apply an internal polymer liner to the damaged pipeline. The critical external pressure (due to ground water pressure) at which the liner may buckle has been the subject of many studies. The most conservative choice of buckling pressure for liners is that for the case of no external support. Besides being uneconomic with respect to material quantities, it also adds more difficulty to the installation of the thick liner into the pipeline. New design tools, useful for design engineers, are extracted from a parametric study performed earlier by the author to evaluate the critical pressure of liners. The new design tools are proposed as an alternative to the available design equations and empirical correction factors recommended in the ASTM specifications.

Original languageEnglish
Title of host publicationGeoengineering in arid lands. Developments in arid regions research 1.
EditorsA.M.O. Mohamed, K.I. Hosani
Pages201-208
Number of pages8
Publication statusPublished - 2000
Event40th Interscience Conference on Antimicrobial Agents and Chemotherapy -
Duration: Sep 17 2000Sep 20 2000

Publication series

NameGeoengineering in arid lands. Developments in arid regions research 1.

Other

Other40th Interscience Conference on Antimicrobial Agents and Chemotherapy
Period9/17/009/20/00

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

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