場所打ち杭の杭頭成形方法

Method for molding head of cast-in-place pile

Abstract

PROBLEM TO BE SOLVED: To finish a pile head at a certain height level by placing concrete in a casing driven into the ground, and sucking and removing extra concrete from a suction pipe connected to an upper peripheral wall. SOLUTION: A concrete suction pipe 2 is placed on the outer surface of the upper portion of a casing 1 along the direction of its axis, and the end of the suction pipe 2 is communicated to the inside at an opening 3 in a specified height position of the peripheral wall of the casing 1. The suction pipe 2 is driven into the ground integrally with the casing 1 and is connected to an above-ground concrete suction pump at its rear end. A reinforcement cage 4 is inserted into the casing 1, and concrete (a) is cast from the opening 3 up to its top. Before the concrete (a) sets, it is sucked and removed from the suction pipe 2 to finish a pile head (a') at a certain height without performing chipping work. COPYRIGHT: (C)1997,JPO
(57)【要約】 【課題】 杭頭の高さを簡単に精度よく、一定のレベル に仕上げることができる場所打ち杭の杭頭成形方法を提 供する。 【解決手段】 ケーシング1の上部周壁に吸引管2を接 続し、地中に挿入したケーシング1の内部にコンクリー トを打設し、該コンクリートの凝固前に吸引管2で打設 コンクリートの上部を吸引除去すれば、コンクリートの 凝固によって、杭頭a’が所定の高さとなる場所打ち杭 を構築することができる。

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Cited By (3)

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    CN-103485343-AJanuary 01, 2014深圳市金世纪工程实业有限公司Pile head processing method of filling pile
    JP-2006328666-ADecember 07, 2006Okumura Corp, 株式会社奥村組Construction method for integrating pile with column
    JP-4611113-B2January 12, 2011株式会社奥村組杭と柱の一体化施工方法