METHOD FOR HOLLOW PILE SUBMERSION (VERSIONS) Russian patent published in 2010 - IPC E02D7/02 

FIELD: construction.

SUBSTANCE: invention is related to construction, in particular to pile foundations. Method for submersion of reinforced concrete hollow pile under action of static or dynamic load developed by installation with loader includes installation of soil piercing device (SPD) into pile cavity, fixation of its position relative to pile; installation of pile with fixed SPD into vertical position relative to earth surface by equipment for pile submersion; submersion of pile into soil till specified elevation, under action of static, dynamic or combined load at pile and facility of soil piercing simultaneously; removal of soil piercing facility from pile cavity; filling of cavity with concrete mortar; at the same time SPD is installed in pile cavity, comprising stem and sharpened tip in the form of cone, or pyramid, or wedge, in which distance from upper end of rod to base of tip is longer than pile length; base of tip is set at the distance from lower end of pile, defined from the following ratio: where z - distance from lower end of pile to tip base; δ - minimum thickness of pile hollow wall; α - angle of tip sharpening.

EFFECT: invention makes it possible to increase bearing capacity of pile.

7 cl, 16 dwg