发明名称 SCREW TYPE STEEL PIPE PILE
摘要 PURPOSE:To enable screwing of a steel pipe pile into a ground by itself and to enable to perform an easy work under a low noise, by a method wherein the forward end of the steel pipe pile is formed in a tapered tube widening toward the end, a spiral vane is secured to the inside thereof, and the steel pipe pile is revolved. CONSTITUTION:In a steel pipe pile 10, a lower end of a cylinder part 11 having the same outer diameter as that of the pile is formed into a tapered tube 12 having a length which is half or about the same as the diameter. A spiral vane 13 is installed such that its upper part is located in the tapered tube 12, the lower part is protruded downward from the tapered tube 12, and the outer edge 14 is welded to the inner periphery of the tapered tube 12. The bulk length of the spiral vane 13 is specified to 1.5-2 leads long, and the vane is protruded about a lead long from the lower end of the steel pipe pile 10. Additionally, a hollow shaft 15 is secured to the center of the spiral vane 13, and a plurality of pores 16 are bored in the peripheral surface of the hollow shaft 15. Finally, an upper end of a pipe connected to the hollow shaft 15 is supported by piercing a center of a boss part 20 supported to the center of the upper end of the steel pipe pile 10 by means of several arms 19 and is supported.
申请公布号 JPS5876609(A) 申请公布日期 1983.05.09
申请号 JP19810171495 申请日期 1981.10.28
申请人 TOYOTA KIHAN:KK 发明人 TOYODA KOUJI
分类号 E02D5/28;E02D5/50;E02D5/56;E02D7/22 主分类号 E02D5/28
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