FURTHER TECHNIQUES
Anchors
Ground anchors and soil nails are commonly used to stabilise slopes and excavations, generally in conjunction with other geotechnical products.
Using our restricted access equipment we can, for example, provide anchors to support retaining walls. This reduces the need for pile sizes, potentially increasing basement size and reducing costs. They are formed using high strength steel bars embedded to a predetermined depth with grout used to bond the anchor to the soil. Reduced wall settlements can be achieved by pre-stressing the anchor prior to the basement excavation.
Grouting
Central Piling offer permeation and infill grouting alongside piled solutions where solution features or man-made voids exist. A variety of machines can be used to install a relatively low strength mix to ensure the stability of the soil mass is achieved and that drilling of piles beyond the affected zone is possible.
Other Products
On selected contracts, in addition to the piling works, we offer a variety of other products. These include: piling platform installation and maintenance, ground beam and slab construction, aswell as spoil removal and pile trimming.
This can be supplemented by the provision of on-site engineering support and management, welfare units and toilet facilities.
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.
DRIVEN PILING
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.
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.