The RETAIN business line relates to technologies that involve earth retention and earth reinforcement applications.
Being the inventor and pioneer in back-filled soil retention systems and earth reinforcement business, this business line targets for projects and techniques involving externally built-up earth retention structures and in-situ improvement techniques. Our precast TechWall® and T-Wall® techniques can be applied to a wide range of land development, building and civil infrastructure projects. The soil reinforcement techniques can be applied to a variety of applications – from mechanically stabilized earth structures (reinforced earth slopes and reinforced earth walls), to reinforcement of cut and fill slopes through grouted soil nails, driven and stressed anchors and ground / rock anchors. This business line also deals in projects involving subgrade stabilization and improvement works, engineered solutions like bridging voids and subsidence, capping and piggy bagging of landfills, reinforcing lagoon closures, reinforcing and stabilizing embankments on soft and very soft foundations, load transfer platforms over piles, controlled modulus columns and stone columns.
Reinforced Earth® – TerraWall®
TerraWall® structures combine engineered backfill with steel or synthetic tensile reinforcement and a modular concrete facing system. This ideal combination creates a durable and resilient earth retention structure. With TerreWall® structures we can create several attractive architectural finishes.
Reinforced Earth® – TerraSlope®
Infrastructures in hilly terrains are often exposed to difficult cut-fill construction challenges and natural hazards like landslides, unstable slopes, rockfall, debris flow and avalanches. Terre Armée in India offers bespoke TerraSlope® technique to build steepend slopes for slope engineering, slope management and geo-hazard solutions. TerraSlope® technique uses both mineral and vegetative facing finishes that appropriately blend with project requirements.
TechWall® precast retaining walls and abutments are an effective solution when a standard footing is used or when site conditions rule out the use of Reinforced Earth® structures. The facings are available in a wide array of decorative finishes, such as stone effects, making them highly effective for urban surroundings or environmentally sensitive sites. TechWall® is a Precast Retaining Wall system developed as an engineered product with low lifecycle costs and long- term performance. TechWall® helps minimize overall construction duration and reduces site works.
The T-Wall® system is a precast modular gravity type reinforced concrete retaining wall system. T-Wall is most suited for railway load supporting structures and construction of submerged retaining structures. The specially designed units arrive at the construction site ready to be placed and can be easily handled by equipment that is usually available at such sites for other purposes. The standard T-Wall® Retaining Wall System decreases in stem length course by course – reducing materials, excavation and backfill as compared to other wall systems.
TerraAnchor™ technology is an active soil reinforcement system used for permanent as well as temporary stabilization of existing slopes / structures by using high tensile steel as soil reinforcement (galvanized bars for permanent and strands for temporary). It is a driven and stressed soil anchoring system used with suitable facing. Unlike other slope stabilization methods, this system doesn’t require heavy equipment and cement (grout), thus making it an economical solution.
TerraNail® is an in-situ method of reinforcing existing soil/rock mass by installing solid or hollow fully threaded hot-dip galvanized high tensile geotechnical steel bars encased in grout. TerraNail® is typically use to stabilize existing slopes or excavations. It is also a reliable solution for landslide rehabilitation and active rockfall protection.
Composite Earth™ technology adopts primary and secondary soil reinforcement systems for the design of Reinforced Earth® retaining walls. It aims to control the lateral deformation of the facing during construction and operation, including during seismic events. This is an effective way to design and construct tall and critical structures.
TerraLink™ technique allows building of earth retention structures connecting existing profiles stabilized by soil nails and/or anchors. It is a useful technique for construction of benches and for road widening projects with limited available space, and activates the best optimisation between cut and fill requirements.
TerraRenforcée™ – TA Grid™
TA Grid™ is high strength geogrid consisting of a uni-axial group of GeoStrap® strips. GeoStrap® strips consist of discrete channels of closely packed high tenacity polyester (PET) yarns encased in a polyethylene sheath and are connected by non-resisting cross direction polyethylene coated strips to form a grid like shape. The strips are produced by a unique co-extrusion-coating process and welded to form a definite grid orientation. TA applications include foundations improvement soft soil reinforcement, embankment reinforcement, void bridging, stabilizing platforms over controlled modulus columns, stone columns and vertical drains.
TerraRenforcée™ – TA Web™
TA Web™ is a 3-dimensional soil stabilization and erosion protection system. TA Web™ is made of High Density Polyethylene (HDPE) and welded or riveted at junctions to form cellular confinement systems. TA Web™ offers higher performance and faster installation for various applications like supporting heavy loads, protection of bare embankments, channel banks and sub-grade stabilization.
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