TWIN-TYPE STEEL PIPE SHEET-PILE WELL FOUNDATION AND TWIN-TYPE STEEL PIPE SHEET-PILE USED THEREFOR FOR IMPROVING SHEAR RESISTANCE OF CONNECTION PART, WATER-STOPPING EFFICIENCY, AND VERTICAL ACCURACY

摘要

PURPOSE: A twin-type steel pipe sheet-pile well foundation and a twin-type steel pipe sheet-pile used therefor are provided to improve economical effects and to remarkably improve shear resistance of a connection part. CONSTITUTION: A twin-type steel pipe sheet-pile well foundation is formed by joining several twin-type steel pipe sheet-piles(1) in a closed shape while combining connection members. In the twin-type steel pipe sheet-pile, an H-shaped steel male connection part(7) or female connection part(8) as a connection part is arranged to an H-shaped steel connection steel pipe wherein steel pipes(2) are integrally connected by the H-shaped steel connection member the flange edges of which are combined to the periphery of each steel pipe. The H-shaped steel male connection part shakes to be combined to a space surrounded by the flange inside of the H-shaped female connection part and the wave face. The H-shaped male connection part or H-shaped female connection part is inclined at a proper angle with respect to the H-shaped steel connection member in a projecting direction, to enable combination in a closed shape.