Polymer liners are being used with increasing frequency for rehabilitation of damaged pipelines as part of infrastructure renewal in North America and elsewhere. An important consideration for these liners is the buckling resistance to fluid pressures acting on the outside of the liner (between the liner and the original pipe structure). Previous work has used unconservative solutions based on a different thermal buckling phenomenon or fluid buckling solutions for very thin liners. Nonlinear finite-element analysis is used to assess the stability of typical polymer liners fitted within a cracked rigid pipe. Slip and separation at the liner-pipe interface, the external fluid pressures, and the imperfect geometry of the damaged pipe are considered in the study of critical pressures. The liner buckling mechanism is reviewed, with emphasis on the impact of both the hoop and flexural stiffnesses. A parametric study is reported, to demonstrate the influence of thickness-to-radius ratio and imperfection size. Recommendations as to stability enhancement resulting from host pipe support are made. These could be used to design liners after examination of the theoretical results in relation to laboratory and field test data.


    Access

    Download

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Buckling Strength of Polymer Liners Used in Sewer Rehabilitation


    Additional title:

    Transportation Research Record: Journal of the Transportation Research Board


    Contributors:


    Publication date :

    1996-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Buckling Strength of Polymer Liners Used in Sewer Rehabilitation

    Moore, Ian / El Sawy, Khaled | Transportation Research Record | 1996


    Internal pipeline rehabilitation using polyamide liners

    Lebsack, D.B. / Hawn, D. | Tema Archive | 1998


    Buckling Failure and Durability of Louvre Type Combustor Liners

    Swansson, N. S. / Trippit, B. J. / Stocks, G. J. et al. | British Library Conference Proceedings | 1995


    Unified Design Method for Most No-Dig Rehabilitation Liners

    Jeyapalan, J. K. | British Library Online Contents | 2005