Going underground on the Stockholm City Line!
Our distributor in Sweden, Geo Drilling Solutions, recently supplied contractor Implenia with threaded casing on the £1.4bn Stockholm City Line – a 6km metro railway running beneath the city’s streets and scheduled to open next year.
Colcrete Eurodrill supplied more than 3km of casing in various sizes for pre drilling for grouting, and underpinning for ground reinforcement, as part of the project.
The contractor used the casings to drill 4,800 holes at a depth of between 15 and 65m and for a total length of 45,000m. Water powered drilling was used in order to minimise the noise and because of the close proximity of the nearby buildings.
Commercial Manager Peter Weinrich said: “We worked closely with Geo Drilling Solutions to provide exactly what the customer needed, in the timescale required”