Hydraulic Engineering

Water Reservoir Liner Protection

Protecting reservoir liners from puncture, abrasion and long-term mechanical damage.

Geotextiles in Reservoir Lining Systems

Water reservoirs require reliable lining systems to help retain water and protect the surrounding soil structure. Whether used for irrigation, industrial water storage, stormwater retention or hydraulic infrastructure, the liner must remain intact throughout installation and operation.

Our needle-punched nonwoven geotextiles are used as protection layers in reservoir lining systems. Installed above, below or on both sides of a geomembrane or liner, the geotextile helps protect the barrier from mechanical damage caused by rough subgrades, sharp stones, aggregate layers or installation activity.

Without a suitable protection layer, liners can be exposed to puncture, abrasion or localised stress, which may affect the integrity of the water-retaining system. A geotextile layer acts as a cushioning barrier, helping to distribute pressure and reduce direct contact between the liner and potentially damaging surfaces.

By protecting critical liner systems and supporting separation where required, our geotextiles contribute to durable, reliable water reservoirs designed for long-term use.

Key Benefits

  • Protects reservoir liners and geomembranes from puncture and abrasion
  • Acts as a cushioning layer between the liner and rough or sharp surfaces
  • Helps reduce localised stress on water-retaining barrier systems
  • Supports long-term liner integrity during installation and operation
  • Separates soil, aggregate and lining layers where required
  • Contributes to the durability of water storage and retention systems

Example of a Layer Structure

In water reservoir liner protection, nonwoven geotextiles are commonly installed directly next to the liner or geomembrane. Their exact position depends on the design of the reservoir, the subgrade conditions and the protection requirements of the project.

  • Water-facing surface
    The exposed reservoir area that comes into direct contact with stored water.
  • Upper protection layer
    Where required, a nonwoven geotextile may be installed above the liner to protect it from cover materials, ballast or mechanical stress.
  • Liner or geomembrane
    The water-retaining barrier designed to prevent unwanted water loss or migration.
  • Lower nonwoven geotextile protection layer
    Installed beneath the liner to protect it from puncture, abrasion and localised stress caused by the prepared ground or underlying materials.
  • Prepared subgrade or foundation soil
    The compacted or shaped base that supports the reservoir lining system.

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