Case Studies - Castle Group Scotland: Piling Fort Charlotte
A 3 man team ventured to the Shetland Isles to pile the Historic Fort Charlotte in LERWICK For the Castle Group Scotland
A 3 man team ventured to the Shetland Isles to pile the Historic Fort Charlotte in LERWICK, for the Castle Group Scotland. We installed 30x 325mm steel cased piles, and each pile was socketed into the underlying rock for a minimum of 700mm. The works were for the east perimeter wall, and the machine used was a T15000 RIG.
Work commenced by ensuring the site was well protected with adequate boards. A 2m x 325mm open ended pile was driven to a 2m max into the head of the rock. Once driven to 2 metres, the head of the pile was clamped using the clamping system attched to the piling rig. The 300mmm lead auger was then attached, along with 2 further sections to the rotary head of the drill, and the team commenced in removing the spoil from the steel casing. At all times it was imperitive that MK personnel took great care not to mark/scratch the exsisiting wall, this was done by always ensuring the head of the auger was always 2m above the ground level. Once a clean hole as been created, the down the hole hammer will replace the auger fittings, enabling us to driill into the rock. Once the 250mm hole is fully drilled, a reinforced steel cage is lowered into the hole and filled with concrete.