| Stabilization of landslides
To restore a failed slope, the soil is often substituted
with a different type of soil with superior geotechnical properties,
significantly increasing material procurement costs and the environmental
impact. In these cases, the use of TENAX TT SAMP geogrids allows
the reconstruction of the slope by taking advantage of the on-site
soil and assures a steep vegetated face. In this way the environmental
impact is minimized and the reinforced slope is reintroduced back
into its natural state without causing a negative environmental
impact.
To restore a landslide, it is necessary to remove the collapsed
soil, to grade the backfill slope and compact the foundation and
to reconstruct the slope in layers of well compacted soil and geogrids.
Overall the slope can be more easily and much more rapidly restored
since there are no foundations requiring excavation, no concrete
formwork to set up, no reinforcement steel bars to align, and no
time lost waiting for the cement to cure.
The inclusion of TENAX TT SAMP geogrid layers will intersect the
failure slip circle and impede the progressive sliding and deterioration
of the rebuilt slope. Of extreme importance is the fact that a geogrid/reinforced
slope has an intrinsic seismic resistance. Due to its superior elasto-plastic
characteristics and to the damping effects conferred to the soil
by the geogrids, the reinforced slope is not subject to failure
during earthquakes, even when of considerable magnitude. |