DRIVEN PILE Russian patent published in 2014 - IPC E02D5/56 

FIELD: construction.

SUBSTANCE: invention concerns construction, and namely to foundation engineering. The invention proposes a driven pile including a screw shaft made so that there formed along inner perimeter are three and more broken right and left screw lines directed opposite each other, as well as three and more internal screw grooves with equal pitch out of sections consisting of two subsections. Besides, the subsections are made of three and more isosceles trapeziums and isosceles triangles alternately connected to each other with lateral sides, the bases of which are located in a subsection to opposite sides. Besides, the sections are connected to each other with larger bases of trapeziums, and the subsections are combined into a section so that bases of isosceles triangles of one subsection are connected to the upper base of isosceles trapeziums of the second subsection, and bases of isosceles triangles of the second subsections are connected to the upper base of isosceles trapeziums of the first subsection.

EFFECT: increasing carrying capacity and reducing forces for driving a pile into soil.

4 dwg