E3S Web Conf.
Volume 368, 20234th African Regional Conference on Geosynthetics (GeoAfrica 2023)
|Number of page(s)||47|
|Published online||17 February 2023|
Design of canals lined with geomembranes
1 Consulting Engineer, Paris, France
2 Consulting Engineer, Washington, USA
3 Consulting Engineer, Montreal, Canada
* Corresponding author: firstname.lastname@example.org
First, a review of important issues that must be addressed when designing the use of geomembrane linings in canals is presented: water flow characteristics affecting exposed geomembranes and mechanisms that could cause failure of geomembrane linings. The reviewed mechanisms include: deformation of the supporting soil; uplift of geomembrane by wind, flowing water, or groundwater; mechanical damage to the geomembrane lining, e.g. by puncture or excessive stresses Recommendations are presented to address these issues. Then, design methods are presented for the sizing of canal components such as geomembrane protection, geomembrane ballasting, and geomembrane anchorage. It is shown that, in many cases, the association of geomembrane watertight lining and concrete protection layer is a successful solution.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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