Standard: | RoHS, BS, DIN, JIS, AISI, API |
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Length: | 12.19-13.72m |
Usage: | Oil Mining, Coal Mining, Well Drilling, Ore Mining, Construction Drilling |
Continuous Flight Auger (CFA) Piles adopt the high-carbon steel and special drilling bits angle to keep the drilling strength and efficiency. they are also known as auger cast piles, augered cast-in-place piles (ACIP), auger-pressure grout piles, drilled displacement piles and screw piles.
Continuous flight auger piles is a type of drilled foundation in which the pile is drilled to its final depth in one continuous process using a continuous flight auger.
While the auger is drilled into the ground, the flights of the auger are filled with soil, which provides lateral support and maintains the stability of the hole.
At the same time the augers are withdrawn from the hole, concrete or grout is placed by pumping the concrete/grout mix through the hollow center of the auger pipe to the base.
The grout/concrete mix is placed as the auger is removed, and the hole is never left open or unsupported. Reinforcement is then placed into the fluid concrete/grout filled hole to complete the pile.
The Specifications
Diameter mm | Flight pitch mm | Flight thickness(top) mm | Flight thickness(bottom) mm | Weight |
400 | 340 | 30 | 16 | 254 |
500 | 400 | 30 | 16 | 386 |
600 | 500 | 40 | 20 | 449 |
800 | 500 | 40 | 20 | 603 |
1000 | 600 | 40 | 20 | 797 |
Other sizes can be manufactured as per customer demand |