Monitoring for new quay on quick clay
Cautus Geo established comprehensive monitoring of pore pressure, anchoring and environment for the safe construction of the new quay in Balsfjorden.
Problem statement
Bergneset harbour at the end of the Balsfjord is one of Northern Norway's largest ports. The annual cargo volume is between 500,000 and 600,000 tonnes. The quay length is 132 metres. The capacity is occasionally overloaded. The municipality of Balsfjord has therefore approved an expansion costing over NOK 400 million. This will provide 80 metres of new quay and more storage space. The ground conditions are demanding. In the 1980s, there was a quick clay landslide. It took two lives.
Solution
Cautus Geo installed 11 pore pressure gauges at various depths below the seabed. In addition, two vertical inclinometers were installed. They monitor the anchoring towards land. In the sea, turbidity meters were installed to monitor and ensure that particles from the backfilling work do not spread into the fjord without setting off the alarm.
The expansion of the Port of Bergneset started in June 2025. In January 2027, the new quay with new storage space on land will be taken into use. The work is taking place in a demanding environment with quick clay and vulnerable nature in the fjord.
Repstad Anlegg is the main contractor for quick clay stabilisation, backfilling and dredging. We work closely with the cornerstone company Cargill, which produces fish feed and regular calls and traffic to Bergneset Pukk & Grus, Perpetuum, Senja Avfall and other local companies.
Monitoring is automatic and continuous. If set values are breached, an alarm is triggered by SMS and e-mail.
Data can be read in real time in Cautus Web.
Customer
Repstad Anlegg AS
Year
2025 - 2027
Location
Balsfjord
Application area
Technology
Cautus Geo's automated system ensures continuous monitoring of pore pressure, settlement points and turbidity. Work should be carried out as safely as possible.
Thomas Gran-Henriksen, Repstad Anlegg AS
Contact person
Switchboard telephone +47 990 96 580 or e-mail salg@cautusgeo.com
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