Auger Piling Work

Services Details

Riding on high capacities of industrial ability and understanding, we are providing top class Auger Piling Work Foundation Service. These services are delivered in agreement with the clients'' requisites to achieve client gratification. In addition, we commence these services only after identifying the given details of our clients.
 
CFA Piles, also known as continuous flight auger piles or auger cast piles, are cast-in-place piles, using a hollow stem auger with continuous flights.

Common uses
• Provide structural support
• Provide earth retention, especially on site boundaries or close to adjacent buildings
• Prevent landslides or protect existing buildings and are often combined with other techniques such as ground anchors or soil nails

Process
CFA piles are constructed by rotating a hollow stem continuous flight auger into the soil to a designed depth. Concrete or grout is pumped through the hollow stem, maintaining static head pressure, to fill the cylindrical cavity created as the auger is slowly removed. The grout pressure and volume must be carefully controlled to construct a continuous pile without defects. The reinforcement cage is placed through the freshly placed concrete. Typically, Keller CFA piles are reinforced with a rigid six meter-long cage as a minimum, but it’s possible to install much longer cages as and when required by the design or specification. If required, a specially developed vibrator unit can help accurately locate the reinforcement cages.

Advantages
• Finished foundations element resists compressive, uplift, and lateral loads
• A cost-efficient foundation solution
• Can be installed in most soil conditions such as sands, clays, silts, gravels and soft rock
• Can achieve pile depths in excess of 30m + and with various diameters of 300 mm to 1000mm+
• Low noise level and no vibration and low noise level so ideal in built-up areas with weak soil conditions and high levels of ground water
• Compared to bored piles, construction is very quick as temporary casings or support systems are not required