Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CONSTRUCTION METHOD OF CAST-IN-PLACE PILE AND FOUNDATION
PROBLEM TO BE SOLVED: To provide a cast-in-place pile which allows pile reinforcements not to be damaged by an excavating heavy machine when excavating the ground with the excavating heavy machine after the cast-in-place pile is constructed.SOLUTION: A cast-in-place pile 1 comprises a pile body 10 made of concrete and a pile main reinforcement 21 driven into the pile body 10. A pile head back-filled part 30, under which the pile main reinforcement 21 extending upward from the pile body 10 is buried, is deposited on an upper surface of the pile body 10 of the cast-in-place pile 1. The pile head back-filled part 30 is formed of recycled gravel and recycled sand. According to the present invention, a soil of the pile head back-filled part 30 is definitely different in colour and hardness from a surrounding soil, which allows the main pile reinforcement 21 buried under the pile head back-filled part 30 from being damaged due to excess excavation by a heavy machine when removing the pile head back-filling part 30.SELECTED DRAWING: Figure 1
【課題】場所打ち杭を構築した後、掘削重機で地盤を掘削する際に、掘削重機による杭鉄筋の損傷を防止できる場所打ち杭を提供すること。【解決手段】場所打ち杭１は、コンクリート造の杭体１０と、杭体１０に打ち込まれた杭主筋２１と、を有する。この場所打ち杭１の杭体１０の上面には、杭体１０から上方に延びる杭主筋２１が埋設された杭頭埋め戻し部３０が設けられる。杭頭埋め戻し部３０は、再生礫および再生砂で形成される。本発明によれば、杭頭埋め戻し部３０の土質が、周囲の土質とは色や硬さが明確に異なることとなり、杭頭埋め戻し部３０を取り除く際、重機で掘削し過ぎて杭頭埋め戻し部３０に埋設された杭主筋２１が損傷するのを防止できる。【選択図】図１
CONSTRUCTION METHOD OF CAST-IN-PLACE PILE AND FOUNDATION
PROBLEM TO BE SOLVED: To provide a cast-in-place pile which allows pile reinforcements not to be damaged by an excavating heavy machine when excavating the ground with the excavating heavy machine after the cast-in-place pile is constructed.SOLUTION: A cast-in-place pile 1 comprises a pile body 10 made of concrete and a pile main reinforcement 21 driven into the pile body 10. A pile head back-filled part 30, under which the pile main reinforcement 21 extending upward from the pile body 10 is buried, is deposited on an upper surface of the pile body 10 of the cast-in-place pile 1. The pile head back-filled part 30 is formed of recycled gravel and recycled sand. According to the present invention, a soil of the pile head back-filled part 30 is definitely different in colour and hardness from a surrounding soil, which allows the main pile reinforcement 21 buried under the pile head back-filled part 30 from being damaged due to excess excavation by a heavy machine when removing the pile head back-filling part 30.SELECTED DRAWING: Figure 1
【課題】場所打ち杭を構築した後、掘削重機で地盤を掘削する際に、掘削重機による杭鉄筋の損傷を防止できる場所打ち杭を提供すること。【解決手段】場所打ち杭１は、コンクリート造の杭体１０と、杭体１０に打ち込まれた杭主筋２１と、を有する。この場所打ち杭１の杭体１０の上面には、杭体１０から上方に延びる杭主筋２１が埋設された杭頭埋め戻し部３０が設けられる。杭頭埋め戻し部３０は、再生礫および再生砂で形成される。本発明によれば、杭頭埋め戻し部３０の土質が、周囲の土質とは色や硬さが明確に異なることとなり、杭頭埋め戻し部３０を取り除く際、重機で掘削し過ぎて杭頭埋め戻し部３０に埋設された杭主筋２１が損傷するのを防止できる。【選択図】図１
CONSTRUCTION METHOD OF CAST-IN-PLACE PILE AND FOUNDATION
場所打ち杭および基礎の構築方法
INENAGA MASATO (Autor:in) / JINNAI YUICHIRO (Autor:in) / MUTO SATORU (Autor:in)
25.10.2018
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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