| 摘要 |
PURPOSE:To obtain a steel sheet pile for corner part excellent in construction work by forming one end of a joining part into a typical Larssen join in accordance with rolling stages and changing stepwise a joint shape of the other end to form a deformed Larssen joint having a bending end of triangle edge. CONSTITUTION:In manufacturing a nonsymmetrical U-shaped steel sheet pile 5 having a typical and a deformed Larssen joints 6, 7, a bisymmetrical U-shaped steel sheet is formed by respective calibers of a break down mill, and a rolling of return flanging of both ends is successively performed by using respective calibers which are nonsymmetrical at both ends in correspondence with the intermediate - finishing stages of respective typical and deformed joints 6, 7. In this way, a deformed steel sheet pile 5 for corner part, consisting of a typical shape joint 6 and a deformed shape joint 7 having a triangle edge 16 at its bending end 17, is formed. Thus, the deformed steel sheet pile is easily mass-produced by using maximumly in common most parts of a conventional steel sheet pile manufacturing installation. The deformed sheet pile is used at the corner part in construction work by engaging it with a typical shape sheet pile. |
