Congress reprises this structure in Sikkim, which although completed in 2013, remains among the world’s tallest reinforced soil walls and featured Maccaferri solutions.
The Sikkim Airport was built for the client: Airports Authority of India. It featured Paralink soil reinforcement geogrids used in conjunction with our Terramesh System to construct this 74m high reinforced soil wall.
At the time, even the renowned British engineering publication New Civil Engineer (NCE) reported online on the project.
The site of the proposed airport boasted a series of problems and requirements:
- hilly terrain with valleys and spurs and nearby mountains-strongly weathered ground conditions
- major seismic risk
- high annual rainfall and storms
- an adequate drainage system
Maccaferri supplied gabions, geogrids for soil reinforcement (ParaLink and Terramesh), erosion control blankets BioMac and drainage works for channelling the surface runoff and naturals streams, using Gabion cascades and RCC structures. In terms of design, Maccaferri worked closely on the design details with the main consultant Mott MacDonald India.
Once completed, the final reinforced soil wall measures 74m in height, thus making it among the world’s tallest reinforced soil structures. The gabion-basket facings are a major feature of the new airport as they help create a flat platform for the runway, aircraft apron and terminal.
Due to its exceptional nature in the geotechnical community, the project was reprised and presented at the exhibition on Modern Technology 2016 at Guwahati.
For more technical information, please download our case study.
For more general information, contact us.