Vibro Lifting Tool-Upend (VLT-U)
Installation with the Vibro Lifting Tool-Upend
The Vibro Lifting Tool with the Upend option is able to pick up a stored pile (up to 1600t), upend it to a vertical position, lift it to the correct position and drive it down (correcting verticality while driving if necessary) in one single handling operation without the need of a gripper or seabed installation frame.
In certain soil conditions and/or very long of piles it may be preferable to use an impact hammer for full installation however the VLT-U will be the ideal tool to handle the pile, stab it and drive it to a depth where the pile is stable, eliminating the risks normally associated with leaving a pile leaning against the installation frame, jacket etc. to remove an ILT before the Impact Hammer is placed on top of an instable pile. As there is a fixed connection between the pile and VLT/VLT-U the risk of “Free Pile Run” is eliminated. This is a risk that normally occurs on the top layers of very weak soils.
Reduce in deck space
The lifting and upending tool also reduces deck space and the amount of additional equipment required as it combines the functionality of an Internal Lifting Tool (ILT) and pile driver into one upending, handling and installation tool - Vibro Lifting Tool-Upend (VLT-U).