Open Auger Bore
Open bored piles are constructed using a continuous auger which is drilled into the ground, once the design depth has been achieved the auger is removed from the pile leaving an “open bore”, steel reinforcement is inserted followed by concrete to complete the pile.
Open bored piles can also be constructed following the same procedure as above but using a short solid stemmed auger attached to a telescopic Kelly bar to achieve larger diameter piles.
Temporary / permanent steel lining tubes can be installed to allow sufficient support for the pile bore while pumping installing the concrete should the ground be unstable or ground water is encountered.
Continuous Flight Auger (CFA)
CFA piles are constructed using a hollow stemmed augers drilled into the ground at a constant penetration rate.
Upon reaching the design depth of the pile, the auger flight is lifted and concrete is pumped under pressure from a concrete pump through the hollow stemmed auger simultaneously filling the void left by the auger extraction.
The extraction of the auger flight is monitored via an on board computer providing information which includes concrete pressure, volume, depth and extraction rate. Once the concrete installation is complete steel reinforcement is inserted completing the pile.
Pile Design Service
We use an award winning specialist pile designer who is equipped with state of the art geotechnical and structural engineering design software who assesses each project and the ground conditions on site to select the most efficient and cost effective method of piling.
The specialist designer can also complete full foundation design packages whether that is ground beams, pile caps, slabs or retaining walls. This is a personalised service we offer to our clients, whether you already have certain aspects completed by the structural engineer or if you need the full design from scratch we can help.
Upon acceptance of a project the specialist designer will provide a full detailed design package which is covered by £5m Professional Indemnity insurance.
Want to know more? Give us a call for a chat.
RESTRICTED ACCESS MINI PILING
PILED RETAINING WALLS
REINFORCED CONCRETE WORKS
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0113 345 2274
United Kingdom, LS1 5HR