Evaluating Wind Uplift for Exposed Geomembranes Using Computer Modeling

Additional Info

  • Practice Areas: Waste Containment Facility Planning and Design, Municipal Solid Waste Landfills, Surface Water/Groundwater Supply Studies and Development
  • Event or Publication: Geosynthetics 2013
  • Title: Evaluating Wind Uplift for Exposed Geomembranes Using Computer Modeling
  • All Authors: Keaton Botelho, P.E., Oliver Heynes, PhD, J.P. Giroud, PhD
  • Geosyntec Authors: Keaton Botelho
  • Date: 2013
  • Location: Long Beach, CA
  • Type: Presentation

Abstract: The accurate calculation of wind uplift forces on an exposed geomembrane is essential for generating design requirements for the anchorage system.

These requirements often largely dictate construction costs, so inaccuracies in the uplift calculation may have significant economic repercussions. Inaccuracies may occur when using generic suction factors rather than a site-specific assessment using computational fluid dynamics (CFD) technology. This paper presents preliminary research conducted to determine whether potential cost savings warrant more complex CFD modeling. Preliminary results comparing a two-dimensional case of an exposed geomembrane (which was used to develop generic suction factors commonly used to evaluate wind uplift) indicate the wind uplift forces calculated from a CFD model resulted in tensions that were significantly less than those using generic suction factors. Preliminary research was performed with the intention of employing CFD modeling to refine the simple prescription of generic suction factors on a site-specific basis.

Read more about this...

Geosyntec Consultants
Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure.

Follow Us