Typical applications include:

• Steepened Embankments
• Dams and Flood Defence Bunds
• Retention Bunds
• Green Walls
• Culvert Head Walls
• Sound Barriers

Geotextile Reinforced Soil Walls

Terram geotextiles can be used to wrap compacted layers of soil ultimately producing a stable composite structure. When constructed geotextile-reinforced soil walls resemble walls constructed out of large sandbags which have been used for many years. However, geotextile-reinforced walls may be constructed to significant height because of the geotextile's higher strength and the very simple construction procedures used.

Geotextile-reinforced soil structures over a number of advantages over alternative solutions

1. They are economical to construct.
2. Construction is usually easy and relatively quick. It does not really require skilled labour or specialized equipment and many of the components are prefabricated allowing relatively quick construction.
3. Support of the structure is not required during construction as for conventional retaining walls.
4. They are relatively flexible and can tolerate large lateral deformations and large differential vertical settlements. This flexibility allows the use of a lower factor of safety for bearing capacity design than for conventional more rigid structures.
5. They are potentially better suited for earthquake loading because of the flexibility and inherent energy absorption capacity of the coherent earth mass.

Geotextile-reinforced walls may be substantially more economical to construct than conventional walls. Applications of geotextile-reinforced walls range from construction of temporary road embankments to permanent structures remedying slide problems and widening, highways effectively. Such walls may be constructed as noise absorbing bunds or abutments for secondary bridges. Because of their flexibility, they can be constructed in areas where poor foundation material exists.

Design Considerations

• Soil conditions
• Hydrology
• Hydrogeology
• Load conditions

Terram Geocomposites can play an important role in your soil reinforcement application providing drainage, reinforcement or separation to the design.

Terram has a broad range of 'off the shelf' geocomposite products to cover most applications. However we are proud of our ability to manufacture bespoke products to suit specific applications for your project.

At Terram we have forty years of experience of manufacturing geosynthetics for demanding applications throughout the global civil engineering industry. We know how important it is that the materials you choose to use will perform consistently and reliably throughout the life of the project.

Bespoke manufacturing is a new approach to manufacturing geosynthetics that harnesses our extensive knowledge of a wide range of geosynthetic solutions and marries their specific properties to solve your problem.

Geotextiles, geogrids and geomembranes are just some of the products that have combined into geocomposite products answering the specific problems of our customers; whether it be soil reinforcement, ground stabilisation, filtration, drainage, protection or erosion control.

Our technical development team will work with you to develop your bespoke solution in our facility in South Wales. The product is developed to your specification then tested to ensure product performance before being signed off for use in your application. If you're not sure what specification you need then our technical team will work with you to understand the problem before developing the solution.

Typical applications include:

• Steepened Embankments
• Dams and Flood Defence Bunds
• Retention Bunds
• Green Walls
• Culvert Head Walls
• Sound Barriers

Terram Geocell provides a cost-effective alternative to conventional earth retention structures due to its flexibility and suitability for use with a wide range of infill materials and foundation soils. The system eliminates the potential for cracking, spalling, splintering or corrosion that can affect concrete, steel and timber based systems.

It can be installed almost vertically to form an effective, economical earth retention structure. Terram Geocell is used in horizontal layers to form a wall structure. This can either be the panels themselves to form a gravity structure or as a facing system in a composite wall working in conjunction with an earth reinforcement system to form a mechanically stabilised earth structure. Terram Geocell can be used with a variety of reinforcement techniques such as geotextile or geogrid earth reinforcement, soil nails, rock bolts, helical anchors etc.

Design Considerations

• Wall Height
• Facia Angle
• Surcharge load on the top of the wall
• Overturning Stability (the consideration of theturning moment around the toe of the structure)
• Sliding Stability (shear strength at the base of the gravity wall)
• Foundation Bearing Capacity (the substrate must be able to support the applied load of the wall structure)

Terram work with specialist partners to provide independently validated solutions in accordance with best practice guidelines.