At the construction site, pile work is carried out when, according to the existing project for the construction of a building or structure, a pile foundation is designed as a foundation. Today, most of the foundations of newly erected buildings and structures use piles to strengthen the foundation. Piles can be made of metal, wood, as well as reinforced concrete. Reinforced concrete piles are the most common type for most modern buildings. In the case when the building is based on weak soils, and the weight of the building is small, wooden piles can be used.
There are three most commonly used types of piling. Special drilling rigs drill a well in a special casing. As the drill sinks into the ground, the walls of the well are reinforced with pipes consisting of sections. Sections are connected either by butt joint or welding. As the pile is made, the pipe sections are removed from the well one by one. Pile work by drilling is carried out by a special drilling machine, also using inventory pipes. When the well is buried in the ground to the design mark, a reinforcing cage is installed in the pipes and the entire volume of the well is concreted. After the solution has solidified, the pipes themselves are removed. The most common type of pile work is shock-rope, when a pile is driven into the ground with a special pile installation.
Where, due to cramped conditions, or the impossibility of using heavy drilling equipment at the construction site, pipe concrete piles are used to construct the pile foundation of the foundation. In this case, the pneumatic percussion machine drives a steel pipe with a conical tip into the ground, which, upon reaching the calculated level of immersion into the ground, is filled with concrete.