Forming of moulding piles
Piles produced by pneumatic punchers are recommended for use:
- when installing pile foundations in reconstructed buildings and structures;
- in cramped conditions and where the use of driven piles is unsuitable;
- reinforcement of embankment slopes;
- creation of retaining walls;
- with deep compaction of subsidence and bulk soils.
Piles moulded in the ground by pneumatic punchers have the highest specific bearing capacity, 2-2.5 times higher than driven pile capacity.
Principle of operation:
Forming of the piles in the ground is carried out by repeated penetrations of the pneumatic punch through a borehole filled with a semi-dry concrete mixture. The mixture is compacted and tamped into the walls of the well, forming a wellbore.
To strengthen existing foundations, both vertical and inclined piles can be used. Depending on the nature of the load, piles can be reinforced and unreinforced. The diameter of the pile reaches 300 mm, its maximum length depends on ground conditions and can go up to 10 m.