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Geosynthetics Soil stabilisation PERMANENT AND SEMI-PERMANENT LOADS SPREAD OVER LARGE AREAS
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Permanent and semi-permanent loads spread over large areas
Remediation of a polluted
industrial site founded on
estremely yielding industrial mud
Installation of fill material over
TENAX GT geocomposites
Reinforcement of the base layer
for the construction of a parking lot.
Parking lots, storage
areas and artificial basins or landfills at times are constructed
over soils with poor mechanical characteristics. Under these circumstances,
differential and localized settlement caused by the presence of
permanent loads, represent the principal cause of settlement and
breakdown in the soil and in the base’s structure.
In landfills
and artificial basins, localized settlement can also cause the rupture
of the impermeable basal layers, leading to very serious environmental
consequences.
Bioriented TENAX LBO SAMP and TENAX MS geogrids reinforce and increase
the stiffness at the base of areas having permanent loads; the tensile
forces and the lateral confinement provided by the geogrids allows
a more uniform load distribution and, consequentially, a higher
bearing capacity.
The time required for the completion of the primary
consolidation phase is often very long and incompatible with the
operating needs for which the structure is designed.
In such circumstances,
the correct use of a TENAX VDR drainage strip together with a rigid
basal structure reinforced by TENAX LBO SAMP geogrids, gives the
degree of consolidation required by the project designer within
the desired timeframe.
The result is the reduction or even the elimination
of the differential and localized settlement.
| PRODUCTS |
TENAX geogrid
supports a greater weight
than a geotextile and
limits deformation
The permanent load of the waste dumped in a
landfill can produce settlements of the subgrade
and consequently high stresses in the waterproofing
layers. The permanent load of the water in a
reservoir may lead to premature failure of the
waterproofing layers due to excessive settlements
of the soft subgrade.
Several layers of TENAX bi-oriented geogrids
significantly improve the bearing capacity of
permanently loaded areas, like landfills and water
reservoirs, thus greatly reducing settlements.
LEGEND:
1. Soft Soil
2. Waste material
3. Tensile stresses
4. Soil cracking
5. Water
6. Geomembrane
7. TENAX bi-oriented geogrids
TENAX geosynthetics prevent localized failures and
distribute the load over a larger area: as a result
the potential failure surface is deepened and the
bearing capacity is increased.
LEGEND:
1. Soft soil
2. Granular fill
3. Stress pattern
4. TENAX bi-oriented geogrid
5. TENAX geocomposite
6. Enlarged shear resistant surface