- Briggs Marine Contractors Ltd.
- Faslane, Scotland
- Jetty piles
- PBA 810
Briggs Marine have been awarded the contract to supply and install large diameter piles for the viaduct section of the Faslane jetty.
Due to the requirement to drill out material DDC as specialist was asked to provide a suitable drill rig. Material had to be drilled out to install concrete plugs and for the longer piles to fully drive to rock head level. Pile length 33m to 65m and diam. 1120mm 1850mm.
The job was executed with the Wirth PBA 810 with drill bit 1110mm diameter and 1845mm diameter. The PBA 810 is hydraulically driven by a power pack and works with the reversed airlift drilling principal for soil removal.