PILING CONTRACTOR Van Elle has used two of its recently developed Mobidrop rigs for a restricted access contract at the Royal Leamington Spa pump rooms in Warwickshire.
The home of the first large indoor swimming pool in the UK, the pump rooms are currently being converted into a new town library by Warwick District Council.
The Victorian building still retains its listed colonnade faade, but has been modified and extended many times and currently houses the large pool and another smaller pool at the rear along with assembly halls and function rooms.
To support the new library's steel framed structure, Van Elle was commissioned to build piled bases both inside and outside the building.
Ground conditions were fill and soft alluvial deposits overlying rock at around 6m. Some of the piles had to be installed inside the old pool base and within underground plant rooms, with restricted access.
Van Elle used two of its recently developed Mobidrop crawler-mounted drop hammer piling machines to install 279, 220mm diameter and 132, 150mm and 100mm diameter piles and ground beams to underpin the plant room and slipper bath walls in just eight weeks.
The in-house designed rigs are built for restricted access work with retractable rubber tracks that allow them to carry a 0.5t weight through doorways. They are capable of installing piles with up to 200kN working load.