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Lankelma carried out cone penetration testing at the outer harbour, Great Yarmouth which is currently under construction – a project undertaken by a Van Oord/Bam Nuttall joint venture. With a view to expanding Great Yarmouth’s port operational capabilities, the outer harbour will service a whole range of ships including freight ferries and container ships.
1,600,000m3 of dredged sand
The project involves the dredging of 1,600,000m3 of sand from in and around the harbour to allow the reclamation of around 17 hectares of land.
Currently, dredging and placement of the sand has been completed by Van Oord in the surrounding areas of the harbour. This material has been hydraulically pumped into areas surrounding the quay walls to depths of over 12m. Levelling of the reclaimed land started in late May 2009.
Pre and post compaction
Lankelma’s role in this project is to test the level of pre and post compaction of the placed material. This will provide the client with an indication of what further works may be required to minimize settlements to structures that are constructed on the site. The CPT has proved to be an ideal technique for collecting this form of information. It readily provides verification and specification compliance of the placed sand, and allows the rapid identification of any weak zones within the fill that may require further compaction.
Track truck excellence
Testing was carried out by our combination track truck vehicle – UK15. This rig excelled in this instance; wheeled operations allowed quick mobilization and rapid movements around staging areas, whilst track deployment of the unit was necessary for traversing the reclaimed land due to the loose surface sand. The use of both trafficking modes meant for rapid and safe testing.
Whilst Lankelma marvelled at cranes on the docked ship that are taller than a high-rise block of flats (see image), the ship’s crew came out to marvel at the track truck!
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