For geomembrane liners to be effective in areas prone to seismic activity, several considerations must be made for the particular environment. The geomembrane material must be selected for its flexibility and ability to withstand ground movements without tearing. High-density polyethylene (HDPE) and linear low-density polyethylene (LLDPE) are often preferred for their durability and elasticity.
The design must include proper anchoring systems to secure the geomembrane, preventing displacement during seismic events. The subgrade preparation is vital; it should be well-compacted and free of sharp objects that could puncture the geomembrane during ground shaking. Incorporating a geotextile cushion layer between the geomembrane and the subgrade can provide additional protection against punctures and abrasion.
