MANUFACTURING METHOD OF ASSEMBLY ATTACHING PILE TO AVAILABLE FOUNDATION AT ITS BEING REINFORCED (VERSIONS) Russian patent published in 2010 - IPC E02D27/08 E02D5/34 

FIELD: construction.

SUBSTANCE: at least two holes are drilled in foundation or in plate of reinforced concrete raft. One hole is made coaxially relative to longitudinal axis of the formed reinforcement pile. Other holes are drilled in the form of hollows at some angle to it. Drilling of all holes is started within the outline of head of pile, thus extending them beyond the pile head as the holes inclined relative to the pile are deepened. First, there made are holes oriented at an angle to pile axis, thus leaving bore cores non-removed. After that a through hole coaxial to the pile and through which the pile is formed is drilled. Bore cores are removed, wells of holes are ground, pile and formed assembly is reinforced, and it is concreted. As per the second version, in manufacturing method of the assembly attaching the pile to available foundation there drilled in foundation is through hole coaxial to longitudinal axis of reinforcement pile and through which a well with local widening in contact zone with foundation shoe is formed. Widening is made with energy of electric discharges in concrete mixture. Processing with discharges is performed till concrete mixture level is decreased by the value not less than well diametre value. The third version of method's implementation provides drilling with design pitch of holes, the diametre of which is chosen from condition when reinforcing rods are submerged in them. Holes are deepened under the plate to the soil by depth of anchorage of reinforcement. Holes are filled with hardening material. Reinforcing rods are equipped with centralisers and put into holes.

EFFECT: improving reliability of assembly attaching the pile to available foundation during reconstruction of the building and reinforcement of foundations.

11 cl, 2 dwg