Driven Piling
Construction technique & application
Driven piles are installed by dropping a hammer weight on a pre-formed pile. When the pile moves a predetermined distance for a given hammer drop height, the pile capacity has been achieved.
Central Piling offer a bottom driven steel cased system with additional sections of casing being welded on as required. Reinforcement and concrete is then placed in the casing to provide a connection to the overlying structure. On selected contracts we can also provide pre-cast concrete piles.
Driven piling is particularly appropriate where soft and alluvial soils overlay dense sands and gravel
Plant & equipment
To carry out driven piling we utilise 25T crane mounted crawler rigs, 55T hydraulic rigs and where access is restricted a 2.5T mini rig. If necessary machines can be supplied to pre-bore through the upper material.
GEOTHERMAL PILING
The temperature differential between the ground and soil provides a means of heating or cooling buildings during the winter and summer months respectively.
ROTARY PILING
Rotary rigs create the pile bore by removing the soil in sections, approximately a metre deep, until the design depth has been reached. At this stage full depth reinforcement cages, steel sections or permanent casings can be easily installed prior to the placement of concrete.
MINI PILING
Central Piling has a variety of bored and driven piling rigs suitable for house extensions, basement construction and restricted access sites.
FURTHER TECHNIQUES
In addition to the piling works, we offer a variety of other products like anchors, grouting, piling platform installation and maintenance, ground beam and slab construction, aswell as spoil removal and pile trimming.
RETAINING WALLS
We offer a variety of bored pile retaining walls when provision for temporary and permanent support for basement excavations is required.
CFA PILING
CFA piling is a particularly economical choice of piled foundation in sands, gravels and low grade rock as this process requires no casings or drilling fluids.