PILE FOUNDATION CONSTRUCTION METHOD, PILE FOUNDATION CONSTRUCTION MANAGEMENT METHOD AND PILE FOUNDATION: Fid-Bau Portal

PILE FOUNDATION CONSTRUCTION METHOD, PILE FOUNDATION CONSTRUCTION MANAGEMENT METHOD AND PILE FOUNDATION

TANIGUCHI TAKESHI / MAGISHI TORU / HORIKAWA MANAKA / UEDA TATSUYA / TEZUKA HIROAKI / HAYASHI MIKIAKI / OKADA NAOHITO

PROBLEM TO BE SOLVED: To provide a technique, related to a pile foundation construction method and a pile foundation, which enables a pile foundation to have excellent bearing capacity and to be removed in the future.SOLUTION: A pile foundation construction method uses a pile which is connected to a supporting column of a structure at an upper section thereof and has a thread on a periphery of a lower section thereof. The pile foundation construction method comprises: an excavation process to excavate a borehole to construct a pile foundation; a determination process to determine whether or not the borehole needs to be filled with sand depending on the ground of the borehole; a sand filling process to fill the borehole with a predetermined amount of the sand depending on the ground of the borehole when determining that the borehole needs to be filled with the sand; and a driving process to drive the pile in the borehole with sand filled therein.

【課題】支持力に優れ、かつ、将来的に撤去ができる杭基礎の構築方法、及び杭基礎に関する技術を提供する。【解決手段】上部に構造物の支柱が接続され、下部の外周にねじ山が設けられた杭を用いた杭基礎の施工方法であって、前記杭基礎を設ける杭孔を掘削する掘削工程と、前記杭孔の地盤に応じて、当該杭孔に砂を投入するかどうかを判定する判定工程と、前記判定工程で前記杭孔に砂を投入する必要があると判定された場合、前記杭孔に当該杭孔の地盤に応じた所定量の砂を投入する投入工程と、前記砂が投入された杭孔に前記杭を打ち込む打込工程と、を備える。【選択図】図４

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