CAP OF PILE Russian patent published in 1995 - IPC

FIELD: civil engineering. SUBSTANCE: cap of pile includes metallic body 1 and metallic insertion pieces 2 being subdivided into internal and external ones. External ones are located between body 1 of the cap and pile 3, and internal ones are placed in pile cavity. Wedge 4 is installed between the insertion pieces. The wedge is composed of two parts. There is hidden erection eye 5 on each wedge part to withdraw the wedge after piling. Wedge angle corresponds to Morse cone to provide reliable coupling the wedge and internal insertion pieces in piling. Wooden shims 6 and 7 are placed onto pile 3 head and wedge 4 to level stresses. EFFECT: strengthened head of hollow pile. 2 dwg