bored pile / concrete
Bored piles are cylindrical bodies made of concrete (with or without reinforcement) which are installed in the ground by a variety of methods. They transmit high structural loads into lower, load-bearing soils. When installed in rows or in secant configuration they can form a supporting wall for an excavation pit or cut in the terrain, or block off groundwater. The length, diameter, material, shape and layout of the piles can be varied according to their intended use.