Expert maritime monitoring
Short notice mobilisation
ALE’s maritime expertise enabled them to overcome the challenges of tidal variations at a shipyard in the Netherlands. It meant they were able to swiftly complete a load-in operation within a narrow timeframe.
The day before the load-in, ALE installed Ro-Ro ramps to link the quay with a barge the day before the load-in was planned and transported 2 x 16 axle lines of SPMT onto the barge at high tide. The SPMTs were positioned underneath a pile gripper frame, weighing 700t, with a wooden filling installed between them.
The weight of the pile gripper was transferred to the SPMTs, which were then manoeuvred into position. As the tide at the shipyard could vary by as much as 4.5m, it was vital that it was accurately monitored so that the operation could be completed safely and successfully on schedule.
The operation was planned around high tide and on the day of the load-in ALE positioned the Ro-Ro ramps in advance of the manoeuvres. Ballasting was carried out throughout to ensure the barge was kept level with the quay. Once the ramps were connected to the hinge points, the SPMTs moved to the edge of the barge and transported the pile gripper frame onto the quay.
After being safely loaded-in, the pile gripper frame was transported to its final location and set down. The load-in needed to be performed within two hours and the experience of ALE’s team combined with their efficient preparations enabled the manoeuvres to be completed in just one hour. Effective monitoring and precision were crucial to the success of the load-in operation at the shipyard, ensuring it could be completed swiftly and on schedule.