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  International web site Geosynthetics Soil stabilisation FOUNDATIONS OF ROAD-BEDS, EMBANKMENTS AND EARTH DAMS  
foundations of road-beds and embankments fondazioni di rilevati, argini e dighe in terra cimentación de bases de carreteras, terraplenes y diques Fondation de remblais, digues et barrages en terre Устройство насыпей, земляных дамб и плотин
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  Soil stabilisation  

Foundations of road-beds, embankments and earth dams

Stabilizzazione della base di una discarica
Stabilization of a landfill base with
Installation of components.

riempimento delle celle di TENAX Georaft

Backfilling of cells.


stabilizzazione di fondazioni


stabilizzazione di fondazioni

TENAX GEORAFT Chevron Pattern



The construction of an embankment on soft or saturated soil presents problems associated with the bearing capacity of the soil and its differential settlement.


The bearing capacity of foundation soil is governed by its own soil shear strength. To increase the bearing capacity of soft soil, it’s necessary to place reinforcement layers at the base of the embankment. A more rigid and compact foundation is obtained by placing one or more layers of TENAX bi-oriented geogrids.

Geogrids are usually installed within a layer of granular material, so as to produce a supporting platform for the embankment’s weight. Such a structure also acts as a drainage system protecting the embankment from saturation and helps to decrease the interstitial pore water pressure on the base of the embankment.

The foundation soil shear strength, and consequentially its factor of safety, increases as consolidation proceeds. By combining the use of a TENAX TENDRAIN geocomposite with a bi-oriented the geogrid, an adequate filtration/drainage action is obtained, which is indispensable whenever the water needs to be drained from the base of the embankment.

The TENAX GEORAFT system maybe used when an embankment rests on a very soft, clayish layer and when plastic fracturing is expected.
This confinement system is then back-filled with granular material. By installing the TENAX GEORAFT system, it’s possible to construct a very rigid, free draining foundation layer, capable of forcing the potential failure surface to start vertically and thus driving it deeper into soft clay.





TENAX 3D Grids

TENAX LBO HM geogrids and TENAX GT HM geocomposites

TENAX TENDRAIN geocomposite

TENAX GEORAFT Foundation System



An embankment on soft soil
An embankment on soft soil may undergo excessive settlements, with consequent crackings in the body or even a shear failure.


geogrids to stabilize and embankment on soft soil
TENAX geogrids and geocomposites provide base stiffening and drainage adequate to stabilize an embankment on soft and saturated soil.


the reinforced embankment
The TENAX GEORAFT System provide lateral confinement and tensile strength to a thick layer of aggregate, thus producing a stiff platform on which the embankment rests


1. Localized differential settlement
2. Soil cracking
3. Granular fill
4. Soft soil
5. Failure surface
6. Profile after failure
7. TENAX GT or TENAX TENDRAIN Geocomposites
8. TENAX bi-oriented geogrids

Teglio (SO), Italy: Overview of the site

Teglio (SO), Italy: Overview of the site








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