DRIVEN PILE Russian patent published in 2015 - IPC E02D5/48 

FIELD: construction.

SUBSTANCE: pile includes a screw shaft that consists of sections alternatively connected to each other throughout the length of the screw shaft with its end openings in the form of polygons. Each section is assembled of two subsections. The first subsection consists along the perimeter of an even number (at least four) of similar first isosceles triangles alternatively connected with their lateral sides to lateral sides of at least four similar second isosceles triangles, the bases of which are larger than bases of the first four isosceles triangles, with formation of small and large end openings in the form of polygons. The second subsection consists of similar equilateral triangles (at least four) alternatively connected along the perimeter and having lateral sides equal to bases of the second isosceles triangles of the first subsection, with lateral sides of at least four similar isosceles triangles at an apex angle of 90°, with formation of small and large end openings in the form of polygons. The large end opening in the form of a polygon of the first subsection is equal to the small end opening in the form of a polygon of the second subsection; subsections are connected to each other in a section with their end openings in the form of polygons.

EFFECT: increasing carrying capacity of a pile, its stiffness and vibration resistance.

8 dwg