| 摘要 |
PROBLEM TO BE SOLVED: To largely reduce fitting construction, a construction period, assembling labor, and costs; and to approximately constitute even a small diameter cell dam in a circular shape having no corner of a polygon, by constructing a large diameter cell dam by a small number of sheet pile segments, by enabling a wide sheet pile, by constituting the sheet pile segments for constituting a slit dam by welding a fitting joint to a steel plate. SOLUTION: The wide sheet pile 13 is constituted by welding the fitting joint 14 to both side edges of the steel plate 18. A width of the steel plate 18 is arranged in a dimension larger than a maximum effective width in a ready-made steel sheet pile of rolling molding, desirably, in about 1,000 mm width or more. The wide sheet pile 13 is constituted by welding the fitting joint 14 to both side edges of the steel plate 18, and a plurality of wide sheet piles 13 are connected in a cylindrical shape via the fitting joint 14. A cylindrical cell 12 is constituted by adding a plurality of cylindrically arranged respective wide sheet piles 13 upward, and an infilling material 15 is filled in the cell. COPYRIGHT: (C)2005,JPO&NCIPI
|
