| 摘要 |
PROBLEM TO BE SOLVED: To provide a spiral steel pipe pile which makes possible execution without being accompanied by vibration and noise by providing a new pile in place of a conventional foundation pile, which can eliminate a worry to neighboring people, and especially which can be smoothly buried even in the case of the steel pipe pile having a large outer diameter than 100 mm. SOLUTION: The spiral steel pipe pile has a steel pipe 3 and a spiral part 4 made by twisting a flat steel which has a width greater than or equal to the outer diameter of the steel pipe, and the peripheral surface at the lower end of the steel pipe has a spiral cut part 5 used for inserting the spiral part. Then the spiral part is inserted to the cut part 5, and the steel pipe and the spiral are welded with each other so that both of them are placed on the same center line. Then the clearance of the spiral-insertion part at the lower end of the steel pipe is welded by a conical-shaped cover 6 and covered. COPYRIGHT: (C)2009,JPO&INPIT |
