Laid geogrids made of stretched, monolithic polyester (PET) or polypropylene (PP) flat or profile bars with welded junctions. Secugrid® geogrids combine high stiffness and low creep tendency with extreme robustness.
Typical solutions with Secugrid®
- Minimising lateral movement within aggregate base course
- Improvement of bearing capacity
- Extension of maintenance cycles/design life
- Inclinations between 45° and 90° achievable
- Large variety of facing systems (vegetation, gabions, concrete blocks/panels)
- Use of locally available soils possible
- Fast and economic solution vs. conventional methods (concrete retaining walls)
- Increased stability of embankment
- Faster construction progress due to shorter consolidation periods
- Mitigation of differential settlements in case of a heterogeneous subsoil
- Long-term stability (low creep tendency/high long-term resistance)
- Larger pile spacings (due to high tensile strength)
- Absorption of lateral thrust forces eliminates the need for raking piles
- Mitigation of differential settlements
- No waiting time for consolidation processes
- Reduced risk of accidents in the event of occurring sinkholes/mining voids
- Increased safety due to high ductility of the system
- Economic and ecologic alternative to rigid raft foundations
Advantages of Secugrid®
Secugrid® PET/PP geogrids are the choice for all applications where high tensile strength over a long service life is required. The selection of the polymers used in combination with the applied product technology guarantees a robust and durable stabilisation and reinforcement product.
High stress absorption at low strains
Shear stresses in granular soils are substantially reduced when comparatively small axial strains (< 2%) are achieved. Geogrids reduce deformation and increase the stability, safety and serviceability of reinforced soil structures. The stress-strain behaviour of geogrids influences the available strength absorption capability of soils especially at low strains thus, reducing rutting, bulging and crack formation, and other mechanisms of failure within roads and other reinforced soil structures. Secugrid® achieves a high modulus (high tensile strength at low strains (Fig. 1)) and exhibits a low creep tendency. This is essential for safe, economically durable engineering work and high serviceability.
Efficient interaction between soil and geogrid
Secugrid® geogrids absorb tensile forces applied to the soil and distribute the stresses via its flat and stiff bars. This transfer of stresses takes place by two distinct mechanisms: interlock of the granular soil with the grid apertures (a.k.a. stabilisation) and friction between the soil and the textured surface of the Secugrid® bars. The apertures allow full or partial penetration of the soil particles, which then abut against the ribs (flat bars) providing confinement of the overlying granular/soil material due to the stiffness and strength of the ribs. Furthermore, the high torsional rigidity provides the essential durability for long-term interlocking performance. The combined effect of the interlocked soil and the high tensile stiffness of the geogrid minimises soil deformation and ensures the integrity of the reinforced structure.
Geogrid documents download
Secugrid® Product Information
Software & more geogrids
With the Naue Platform Software, you can design base course thicknesses for Secugrid® or Combigrid® stabilised and reinforced base courses in different applications such as working platforms for tracked plants (e.g. piling rigs), hardstands for cranes and heavy equipment, storage areas, etc.