A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a pile construction method capable of preventing an inner wall of an excavated hole from collapsing to a columnar body side.SOLUTION: A pile construction method includes: an excavation step of forming an excavated hole 10 with a predetermined depth in a ground G; and a columnar body forming step of injecting air bubble-containing cement milk 14 which contains air bubble 13 generated by a foaming agent into the excavated hole 10, and stirring to mix it with excavated soil 15 generated by the excavation step, to form a columnar body 16 composed of soil cement containing the air bubble 13. Inner pressure of the air bubble 13 is applied to an inner wall of the excavated hole 10, to prevent the inner wall of the excavated hole 10 from collapsing to the columnar body 16 side.SELECTED DRAWING: Figure 1
【課題】掘削穴の内壁が柱状体側に崩壊するのを防止することができる杭施工方法を提供する。【解決手段】地盤Ｇに所定深さの掘削穴１０を形成する掘削工程と、起泡剤によって生成した気泡１３を含む気泡含有セメントミルク１４を掘削穴１０に注入しながら前記掘削工程に伴って生じた掘削土１５と撹拌混合して、気泡１３を含むソイルセメントからなる柱状体１６を形成する柱状体形成工程と、を有し、気泡１３の内圧を掘削穴１０の内壁に作用させて、掘削穴１０の内壁の柱状体１６側への崩壊を防止した杭施工方法を構成する。【選択図】図１
To provide a pile construction method capable of preventing an inner wall of an excavated hole from collapsing to a columnar body side.SOLUTION: A pile construction method includes: an excavation step of forming an excavated hole 10 with a predetermined depth in a ground G; and a columnar body forming step of injecting air bubble-containing cement milk 14 which contains air bubble 13 generated by a foaming agent into the excavated hole 10, and stirring to mix it with excavated soil 15 generated by the excavation step, to form a columnar body 16 composed of soil cement containing the air bubble 13. Inner pressure of the air bubble 13 is applied to an inner wall of the excavated hole 10, to prevent the inner wall of the excavated hole 10 from collapsing to the columnar body 16 side.SELECTED DRAWING: Figure 1
【課題】掘削穴の内壁が柱状体側に崩壊するのを防止することができる杭施工方法を提供する。【解決手段】地盤Ｇに所定深さの掘削穴１０を形成する掘削工程と、起泡剤によって生成した気泡１３を含む気泡含有セメントミルク１４を掘削穴１０に注入しながら前記掘削工程に伴って生じた掘削土１５と撹拌混合して、気泡１３を含むソイルセメントからなる柱状体１６を形成する柱状体形成工程と、を有し、気泡１３の内圧を掘削穴１０の内壁に作用させて、掘削穴１０の内壁の柱状体１６側への崩壊を防止した杭施工方法を構成する。【選択図】図１
PILE CONSTRUCTION METHOD, AND PILE
杭施工方法、及び、杭
FUJII TAKEYUKI (author)
2021-05-27
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
PILE CONSTRUCTION DEVICE, PILE CONSTRUCTION METHOD AND PILE
| European Patent Office | 2015