Stabilization of a landfill base with
TENAX GEORAFT System.
Installation of components.
Backfilling of cells.
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
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 may undergo excessive settlements, with consequent crackings in the body or even a shear failure.
TENAX geogrids and geocomposites provide base stiffening and drainage adequate to stabilize an embankment on soft and saturated soil.
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
9. TENAX GEORAFT System