SHISHKOV'S BUTT JOINT OF TUBULAR PILE SECTIONS Russian patent published in 1997 - IPC

FIELD: construction, in particular, pile foundation engineering, applicable for erection work of other kinds in the course of which jointing of built-up tubular members is provided. SUBSTANCE: butt joint of tubular pile sections has a connecting member combining the ends of the sections. The connecting member uses two walls (rigid and flexible ones) connected in the center line by a ring stiffening plate, with the tubular pile walls positioned between them; corrugations of metal collapsible plate attached in the points of contact of corrugations with the connecting member are made of the surfaces of the connecting member walls facing the pile surface, and the corrugation interiors are filled with material that is compressible and expansible at solidification. EFFECT: enhanced reliability. 6 cl, 6 dwg