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LOCATION

Elan Valley, Wales, UK

CLIENT

EVA

PRODUCT USED

StrataGrid™

APPLICATION

Reinforced soil wall construction

About the project

This was a rehabilitation project where sections of a 100-year-old structure, the Elan Valley Aqueduct (EVA), needed to be replaced. The EVA is an extremely crucial resource as it supplies water to Birmingham and its adjacent areas. There was a need to refurbish and modernize the aqueduct so that it could be preserved for the future. For this, a 1.8 km-long, 3.0 m-diameter, wide conduit with a tunnel was to be constructed. The requirement was to construct a bypass conduit, a horizontal working platform that supported the construction traffic, a 1000-ton crane, and a 150-ton TBM.

The solution consisted of a reinforced soil wall using StrataGrid™ SGU 120 and SGU 60, and site-won cohesive material as part of the cut-and-fill balance of the project.

On top of the reinforced soil wall, we constructed a fortified working platform with selected granular material that was 970 mm thick and fitted with biaxial geogrid to distribute the load better.

The use of StrataGrid™ was cost-efficient compared to the conventional method of constructing the wall, all while being completely environmentally friendly.

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CONSULTATION

From know-how to manufacture, installation and support.

Strata not only provides geotechnical products, but our team of 200+ engineers can help you with your turnkey project by supplying you with technical knowhow and support as to how our products can help you finish your projects in time while keeping costs down.

Send us your queries and we will get back to you with our expertise.

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