FOUNDATION PILING has invested in new equipment to help drive piles below the lowwater mark on a beach on the Severn Estuary.
The Fambo PR1100 hydraulic boom-mounted piling hammer with hammer weight of 2.75 tonnes is claimed to be the largest and most powerful excavatormounted piling hammer in the UK.
Foundation Piling is installing the supporting structure for a new discharge pipe at the Avonmouth Outfall for main contractor Manning Construction.
The Severn has a notoriously high tidal range. The Fambo can be set up on site and working within one hour, maximising the time available between tides. It was required to drive 20 150mm square greenheart timber piles, each 6m in length, into the bed of the estuary.
On top of these piles, Manning Construction fabricated a lattice frame anchoring the 350mm diameter outfall pipe in place about 1m above the estuary bed.