ASEISMIC DRIVEN PILE Russian patent published in 2015 - IPC E02D5/54 

FIELD: construction.

SUBSTANCE: aseismic driven pile comprises a shaft with a sliding lower part and a wedge-shaped element arranged inside the latter, contours of which follow internal contours of the lower part of the shaft. The lower sliding part of the shaft is made with three pairs of triangular slots on the surface and additional yokes and reinforcement grids in their area. The wedge-shaped element is made with a lower part in the form of a quadrangular pyramid and is equipped with two fixing rods on an embedded part in the upper part of the point, and the lower part of the shaft is equipped with tubes put on fixing rods. On the outer surface of the shaft there are at least four curved grooves in the form of sine waves, longitudinally stretched from the lower sliding part upwards from the shaft, cavities of which are concentrates of moving seismic oscillations, besides, sections of closest approach of pairwise curved grooves make units that cause generation of transverse standing waves.

EFFECT: increased seismic stability of buildings and structures using driven piles, where concentration movement of longitudinal seismic waves is achieved.

3 dwg