Hammerhead in Vertical Deployment for Port and Harbour Survey

Hammerhead in Vertical Deployment for Port and Harbour Survey
17/12/2014
Industry Sector: Survey

Tritech’s 360° high-resolution mechanical scanning sonar and high-resolution side scan, StarFish 990F have assisted a port authority with a recent wall survey operation.

The Port of Workington, Cumbria, England, UK has used the both the SeaKing Hammerhead sonar and StarFish 990F side scans in a vertical scanning application during a recent survey.

The Port Manager was required to survey a curved section of the port wall, in order to examine suspected damage. 

The SeaKing Hammerhead was deployed from a pole lowered by a crane and held into position in order to capture a vertical scan. The images were captured selecting the 935 kHz frequency channel [at up to 40m radius] for high-definition examination of the harbour wall, [675 kHz can also be selected for large area survey up to 100m radius]. For more information on the SeaKing Hammerhead, click here.

Here the visible structure of the curved port wall can be seen.

Here the visible structure of the curved port wall can be seen.

Tritech's StarFish 990F was also mounted on the starboard side of the vessel via a pole mount arrangement with bracket and flange. StarFish 990F is a high-resolution for high-definition image and target detection, for more information on the system or the range of StarFish Seabed Imaging Systems, click here.

The curve of the harbour wall has slight adverse effects on the scan and this can be seen in the scan above where on the left hand side the wall appears to get shorter and fall away.

The curve of the harbour wall has slight adverse effects on the scan and this can be seen in the scan above where on the left hand side the wall appears to get shorter and fall away.

The above image clearly shows thick concrete pillars, the undulating river bed and damaged section of walls, ladders and patches of damaged metal mesh.

The above image clearly shows thick concrete pillars, the undulating river bed and damaged section of walls, ladders and patches of damaged metal mesh.

The Port of Workington is the largest port in Cumbria and one of the main hubs in the North West. It serves the region's industry and agriculture, including most of the major manufacturing and processing businesses in the area. Workington handles 600,000 tonnes of cargo per year and around 300 ship movements annually. For more information visit: www.portofworkington.co.uk.

Read the full case study here.


Thanks to Jeremy Lihou at the Port of Workington for use of the data displayed.

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