Bored Piles



Bored piles are non displacement piles often used where there are large vertical or bending moments which must be carried by a single unit. Hauraki Piling operates a range of bored piling rigs capable of drilling up to 50 meters deep and up to 2.5m in diameter. Soil and rock is removed using drilling tools including soil and rock augers, drilling buckets, core barrels, and down hole hammer drills. The resulting holes are filled with concrete and reinforced steel to form the pile. Where the excavation is not stable, Hauraki uses shaft support methods including temporary or permanent casing and liners or by using various drilling fluids.

Bored cast-in-place piles provide economic solutions as non-displacement piles for supporting substantial horizontal and vertical structural loads.

To support the pile bore in soft soil conditions, during drilling, a range of options can be used:

  • Temporary Casings
  • Permanent Casings
  • Drilling Fluid Support