COMPOSITE REINFORCED CONCRETE PILE Russian patent published in 2019 - IPC E02D5/52 

FIELD: construction.

SUBSTANCE: invention relates to construction and can be used for reinforcement of foundations of existing buildings and structures. Composite reinforced concrete pile comprises serially crushed with the help of a jack under the foundation of the building lower, intermediate and upper sections of factory fabrication and their joints with fixators installed centrally in the butt ends and with a cement layer between the ends of sections, wherein retainers are installed in cylindrical recesses, which are made at the top of lower section, at the bottom and at the top of intermediate sections and at the bottom of upper section. In the intermediate and upper sections of the pile there is a through central hole communicating with the cylindrical recesses. As fixator in joints there is a steel perforated pipe, outer diameter of which is less than diameter of cylindrical recesses, and inner diameter is not less than diameter of through central hole. All cavities and joints in body of composite pile are cemented by means of their filling with cement-sand mortar injected from above through central hole.

EFFECT: technical result consists in improvement of reliability of composite reinforced concrete pile and its manufacturability due to joint operation of sections of pile and integrity of its structure.

1 cl, 3 dwg