To provide a prefabricated pile, which brings a bearing force from a lower face of a projection and a lower face of a sloped step part thereof to act on the bearing ground to increase a vertical load and a pull-out force to be born by one prefabricated pile, so as to exert a high vertical supporting force and a high horizontal supporting force in a well-balanced manner.
A pile hole composed of a shank portion 2 and a wide bottom portion 3 is drilled in Fig.(a). A concrete prefabricated pile is lowered into the pile hole 1, the prefabricated pile being made by connecting a lower pile 32 with a lower end portion having annular ribs 5 and 6 and the sloped step part 35 to an upper pile 30 in Figs.(b) and (c). Cement milk (having solidification strength of about 100 to 300 kg/cm2 corresponding to the strength of the bearing ground) is injected into the wide bottom portion, and following the solidification of the cement milk, a pile structure 10 in which the prefabricated pile 4 is buried in the wide bottom portion 3 of the pile hole 1 is constructed in Fig.(d). The annular ribs 5 and 6 and the sloped step part 35 are located in the wide bottom portion 3 of the pile hole 1.
KITANI YOSHINOBU
| JPH02232416A | 1990-09-14 | |||
| JPS5751736U | 1982-03-25 | |||
| JPH0841870A | 1996-02-13 | |||
| JPS6323335U | 1988-02-16 | |||
| JPH0125848B2 | 1989-05-19 | |||
| JPH02232416A | 1990-09-14 | |||
| JPS5751736U | 1982-03-25 | |||
| JPH0841870A | 1996-02-13 | |||
| JPS6323335U | 1988-02-16 | |||
| JPH0125848B2 | 1989-05-19 |
Kenichi Wakui
Norihiro Yamamoto
Kazunaga Suzuki
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