Highways

Highways

TERRAM Geosynthetics are used extensively in the construction of highways in civil engineering applications  - from preventing intermixing of sub-base and subgrade layers, control erosion on cut slopes, for roadside drainage, as part of SUDS projects for infrastructure access and in the construction of retaining walls, bridge abutments and steep slopes.

Earth reinforcement

TERRAM Geocell cellular confinement systems are widely used in construction and civil engineering for erosion control, soil stabilisation on flat ground and steep slopes, load platforms, tree root protection, channel protection, and structural reinforcement for load support and earth retention. 

TERRAM geocells are a three dimensional cellular confinement system manufactured from permeable geotextile fabric and are expanded on-site to form a honeycomb-like structure which may be filled with sand, soil, rock or other site material.

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 the turning 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.

Typical Applications Include:
• Steepened Embankments
• Dams and Flood Defence Bunds
• Retention Bunds
• Green Walls
• Culvert Head Walls
• Sound Barriers

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TERRAM geocells for steep slopes, earth reinforcement, bunds and walls
TERRAM Geocell used on a highway side
TERRAM Geocells comfine fill material
TERRAM geocells allow reinforced steep slopes to be formed