PILE Russian patent published in 2002 - IPC

FIELD: civil engineering, construction of foundations of buildings and structures. SUBSTANCE: pile is manufactured of external and internal pipes with open butts jointly sunk into ground with removal of one pipe with solid walls. Novelty lies in removal of internal pipe and in perforation of external pipe in points weakened by mechanical or corrosion defects. It can be employed as bearing reinforcement. EFFECT: raised operational reliability, adaptability to manufacture and strength of structure, reduced usage of materials and labor input to its manufacture. 1 dwg