The most considered factors before, during and after installation of a geomembrane

The top 7

Installing a geosynthetic membrane is a critical step in various civil engineering and environmental projects, such as landfills, ponds, reservoirs, and containment facilities.

The 7 most considered factors before, during and after installation are:

1️⃣ Thoroughly inspecting the subgrade: Before installing the geomembrane, inspect the subgrade thoroughly for any sharp objects, rocks, debris, or irregularities. The subgrade should be smooth, free of sharp edges, and properly compacted.

2️⃣ Properly storing and handling the geomembrane: Store the geomembrane rolls in a dry, shaded area to protect them from UV exposure and damage. Handle the rolls with care to avoid tears, punctures, or wrinkles that could compromise the integrity of the liner.

3️⃣ Choosing the right geomembrane material and thickness: Select a geomembrane material suitable for the specific project requirements, considering factors such as chemical compatibility, hydrostatic pressure, and site conditions.

4️⃣ Utilising proper seaming techniques: Seam the geomembrane using the recommended seaming techniques for the chosen material, such as thermal fusion, extrusion welding, or chemical bonding. The seams should be strong, watertight, and tested for quality assurance.

5️⃣ Conducting leak testing: Perform leak testing on the installed geomembrane to ensure its integrity. The Buckleys (UVRAL) Ltd Geo Pro2 has been specifically designed or the post-installation testing of geomembranes for leaks and faults prior to being placed in service, and can easily test 1000m² per hour in ideal conditions.

6️⃣ Considering slope and anchoring: If the installation involves slopes, ensure the geomembrane is properly anchored and secured to prevent sliding or displacement. Use appropriate anchoring methods, such as ballasting, cover soil, or anchor trenches.

7️⃣ Overlapping and covering the geomembrane properly: Provide sufficient overlap (typically 0.3 to 0.6 meters) between adjacent geomembrane panels to create a continuous barrier. Cover the geomembrane with suitable protective materials like soil, sand, or geotextiles to shield it from UV exposure, physical damage, and weathering.