FIXING METHOD FOR FLEXIBLE REINFORCING BAR

Japanese Patent JP3684539

B2

PROBLEM TO BE SOLVED: To construct a cast-in place pile of good quality efficiently in a simple constitution by collapsing the tip of a flexible reinforcing bar inserted in an insert hole of a lower frame, filling the collapsed part with a flowable hardening agent to form a ball block part, and then fixing a lower frame to the ball block part.
SOLUTION: A flexible reinforcing bar storing device 1 and a frame 2 are installed on the construction foundation G of a cast-in place pile, a center hole jack 3 is fitted to the central part of the frame 2, and a guide pipe 4 for the flexible reinforcing bar is fitted to the frame. A flexible reinforcing bar 5 is inserted in an insert hole of a lower frame 6, the tip thereof is collapsed, and the collapsed part is filled with a flowable hardening agent to form a ball block part 7. After the lower frame 6 is fixed to the ball block part 7, the flexible reinforcing bar 5 is lowered in the drilled hole 9 by a suspending wire 8 supporting the lower frame 6 and simultaneously a shearing reinforcing bar 10 is wound round the flexible reinforcing bar 5. The reinforcing bar 5 is lowered to the bottom of the drilled hole 9 and concrete in water is placed in the drilled hole 9.

JP6274596

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Makoto Kato
Yoshihiro Tanaka
Toshihide Shiraishi
Toshihiko Kobayashi

JP20727397A

August 17, 2005

July 16, 1997

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East Japan Railway Company
Taisei Corporation

E02D5/34; (IPC1-7): E02D5/34

JP7150555A
JP55122916A
JP62138739U
JP8120667A
JP56031412B2
JP57058722A
JP9125379A
JP9088063A
JP9296444A

Sakuo Yamaguchi
Yuichi Kasai

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