Pier drilling is a drilling method used for drilling deep holes in the earth for constructing concrete cylindrical foundations.
A pier drilling company uses this drilling method mainly to transfer the load of the building to the subsurface layers of the earth at different depths.
The difference between boring pile and pier drilling
Though boring piles can also be used for foundations, they are
different from drilled piers in terms of size. The diameter of boring piles normally remains 0.6 meters or less whereas holes made of more than this size come in the category of drilled piers. The deep foundation of drilled piers allows the transfer of heavy lateral or axial loads of the entire structure to the deep layers below the surface of the ground.
Advantages of pier drilling
- The pier drilling has a number of benefits for the building contractors than piles. Some of the advantages of drilling piers are briefly discussed here under.
- Pier drilling is more convenient than constructing piles as single pier can bear the load of various piles grouped together.
- The load resistance power of drilled piers is laterally much more than the piles.
- While constructing drilled piers people experience less or no noise due to the absence of the blows of the hammers used in constructing piles.
- Pier drilling also helps in retaining the strength of the surrounding soil. Unlike driving piling where heaving and vibration cause soil fracture.
the ground nor vibrates as caused by the use of hammer while driving piles.
- Drilled piers provide greater load searing capacity to the foundation of a structure to be constructed on it due to its enlarged base