Studded geomembrane
Core Properties
1. Ultra-high friction coefficient: The friction coefficient is much higher than that of ordinary textured geomembranes, providing excellent anti-sliding performance, making it suitable for steep slopes.
2. Excellent impermeability: Permeability coefficient ≤ 1×10⁻¹⁷ cm/s, completely blocking liquid leakage.
3. Drainage and ventilation: Natural channels are formed between the studs, quickly draining accumulated water and gas under the membrane to avoid bulging and sliding.
4. Enhanced mechanical properties: Tensile, tear resistance and puncture resistance are superior to ordinary smooth / textured geomembranes.
Studded geomembrane is a type of HDPE impermeable geomembrane with regular and uniform columnar protrusions on its surface. Its key advantages include an extremely high friction coefficient, excellent anti-slip and anti-sliding performance, as well as good drainage and venting properties, making it the preferred material for steep slope anti-seepage projects.
The textured-surface geomembrane with stud technology is an advanced manufacturing process that involves calendering a high-density polyethylene (HDPE) film using a specially designed pressure roller to form uniformly distributed cylindrical protrusions on its surface. This technique significantly enhances the interface friction coefficient and mechanical properties of the geomembrane, serving as a key upgrading process in high-performance anti-seepage engineering.
This process is akin to equipping the geomembrane with a "cleated sole," which not only improves anti-skid capability but also greatly enhances the material's overall tensile strength, wear resistance, and puncture resistance. It is particularly suitable for high-risk anti-seepage applications such as steep slopes in landfills and tailings pond dam surfaces.
I. Core Properties
1. Ultra-high friction coefficient: The friction coefficient is much higher than that of ordinary textured geomembranes, providing excellent anti-sliding performance, making it suitable for steep slopes.
2. Excellent impermeability: Permeability coefficient ≤ 1×10⁻¹⁷ cm/s, completely blocking liquid leakage.
3. Drainage and ventilation: Natural channels are formed between the studs, quickly draining accumulated water and gas under the membrane to avoid bulging and sliding.
4. Enhanced mechanical properties: Tensile, tear resistance and puncture resistance are superior to ordinary smooth / textured geomembranes.
5. Weather and corrosion resistance: UV resistant, acid and alkali resistant, anti-aging, with a service life of more than 50 years in underground / open-air environments.
6. Construction-friendly: Easy to bond with geotextile, and more convenient for welding and testing.
II. Typical Applications
1. Environmental Engineering: Slope anti-seepage for landfills, hazardous waste landfills, sewage treatment ponds.
2. Mining Engineering: Tailings dam slopes, heap leaching ponds, red mud yards.
3. Water Conservancy Engineering: Reservoirs, dams, steep slope anti-seepage for canals, artificial lake slope protection.
4. Municipal & Transportation: Subway tunnels, waterproof isolation for highway and railway subgrades.
