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Puncture Protection of Geomembranes Part I: Theory
Journal article   Peer reviewed

Puncture Protection of Geomembranes Part I: Theory

R.F. Wilson-Fahmy, D. Narejo and R.M. Koerner
Geosynthetics international, v 3(5), pp 605-628
Jan 1996

Abstract

Geomembrane protection materials should be considered in design if geomembranes are to properly serve the role of barrier materials. The type, thickness and properties of the required protection material are in significant need of a rational design method. This series of three papers provides a design method for the inclusion of geomembrane protection materials, geotextiles in particular. This paper, Part I, focuses on theory, Part II focuses on experiments and Part III focuses on design examples. The theoretical approach presented in this paper proposes an idealized geometry and then derives the necessary equations using tensioned membrane theory. Theoretical solutions for geomembranes with and without protection geotextiles are presented, and the necessity of using a protection material is evidenced. Also, the characteristics of the protruding object and the protection material are quantitatively defined. Graphs of the results obtained from several parametric evaluations of geomembranes with and without protection are presented.

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