DN500 sewer
Installation of polyethylene pipework within a prepared and shored trench, with control of levels and connections.
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Completed works / Utilities
Utility infrastructure.
A combined portfolio of sewer and water-main works delivered within active urban environments.
DN500 · DN250polyethylene sewer systems
DN220ductile-iron water main
Trenchlesscrossing with a casing pipe
Different systems. One delivery standard.
This case study brings together completed utility works using different diameters and methods — from open-cut and shored trenches to trenchless crossings and full surface reinstatement.
Installation of the pipeline route within an open trench
Completed inspection chamber and preparation of the route
Asphalt reinstatement following completion of the underground works
Methods
The route defines the method.
The delivery method is selected around pipe diameter, ground conditions, the urban environment and the need to protect traffic and existing infrastructure.
DN250 sewer
Delivery of compact sewer routes, inspection chambers and associated connections.
DN220 water main
Installation of ductile-iron water main pipework, fittings and associated assets in an active urban setting.
Trenchless crossing
Installation with a casing pipe from a shored working shaft, limiting intervention at surface level.
From the site
Below the surface. Fully controlled.
Selected views from excavation, shoring, installation, trenchless works and reinstatement of the urban environment.
Outcome
From excavation to reinstated surface.
GRANDE 2012 manages the complete delivery cycle for utility routes — organisation, earthworks, installation, backfilling and reinstatement of the affected areas.
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