If a structure such as a bridge abutment or retaining wall is needed in temporary works, practicality and economy take priority over aesthetics. The TR2 system is designed to produce straight forward to build temporary structures with face angles between 60 degrees and vertical, for a lower cost of traditional reinforced concrete, and is also used for permanent thrust relief structures.
The system is comprised of steel mesh face units - lined with durable, heavy duty geotextile - securely connected to Tensar uniaxial geogrid soil reinforcement via Tensar’s highly effective bodkin connection joint. There is no requirement for an external face support or formwork, owing to the rigid steel mesh face being braced internally and held in place by the geogrid and fill material during construction.
Due to having a design life of up to 120 years, the TensarTech TR2 System can also see use as thrust relief structures. This may be used in the case where an existing retaining wall which must remain in service is unable to take the lateral earth pressure being applied by the backfill (for a design life of more than 60 years, the steel face is usually supplied galvanised), or to reduce or remove earth pressure from acting on buried structures.