COMBINED PILE Russian patent published in 2024 - IPC E02D5/50 

FIELD: construction.

SUBSTANCE: invention relates to construction, namely to design of combined piles for pile foundations. Combined pile includes a shaft and a hollow reinforcing element enclosing it and rigidly connected to it, which consists of a lower assembled section with an external chamfer in the lower part and a monolithic section resting on its upper end face. Lower prefabricated hollow section is made of reinforced concrete of B30-B45 type, of cylindrical or square cross-section and in the lower part has the shape of a truncated cone or pyramid with an angle of inclination of 45 to 75 degrees to the horizontal. Angle of the upper end of the prefabricated section on the side of its inner cavity is edged along the perimeter with a steel angle recessed into the concrete of the prefabricated section flush with its surface.

EFFECT: facilitation of pile immersion, increase of its bearing capacity and expansion of application area of combined piles.

6 cl, 3 dwg