METHOD TO MANUFACTURE BORED PILES AND DEVICE FOR ITS REALISATION Russian patent published in 2014 - IPC E02D5/42 

FIELD: construction.

SUBSTANCE: invention relates to construction and may be used for production of bored piles. The method to manufacture a bored pile includes drilling or piercing of a well, lowering of a reinforcing cage in it, filling of the well with a hardening material and its compaction and ramming into soil. A cylinder is fixed to reinforcement rods and the upper reinforcement ring, in which the shell is installed, where a tore is installed, being filled with a fluid agent. In the shell there are cavities formed by bent sections of the shell. Ends of the shell are bent and tightly fixed along the perimeter of the tore. Inside the shell there is a striker with a tip. The system of feeding and draining is used to feed a fluid agent to one of the cavities and drain it from the other cavity. The shell starts rolling in the cylinder, at the same time the shell pushes the hardening material in longitudinal and radial directions and presses it into soil. The shell and the tore press the striker and move it down, at the same time the tip presses against the hardening material in longitudinal and radial directions. Compaction and ramming of the hardening material is carried out during reciprocal movement of the shell and the striker, as the hardening material is compacted, it is added, if necessary. After compaction of the hardening material the device is removed from the reinforcing cage, and the hardening material is added into the well until complete filling.

EFFECT: technical result consists in increased bearing capacity of a pile for action of vertical and horizontal loads, reduced material intensity.

2 cl, 1 dwg