Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CONSTRUCTION METHOD OF CAST-IN-PLACE CONCRETE PILE AND CAST-IN-PLACE CONCRETE PILE
To provide the construction method of a cast-in-place concrete pile allowing to excavate and form excavation holes of an adjacent under-reamed pile part and a connection pile part by using the same excavator, and capable of efficiently and economically constructing the under-reamed pile comprising the multiple under-reamed pile parts and the connection pile parts, and the cast-in-place concrete pile.SOLUTION: A columnar ground improving body 15 is formed by improving the ground G of a pair of adjacent under-reamed pile parts 1, or the ground G of a connected pile part 8. The ground G of the connection pile part 8 with no ground improving body 15 formed, or the ground G of the pair of the adjacent under-reamed pile parts 1 is excavated in advance using an excavator 9 for a pile to form an excavation hole 10. The ground G of the pair of the adjacent under-reamed pile parts 1 formed with the ground improving body 15, or the ground G of the connection pile part 8 is excavated later using the excavator 9 for the pile and vertically guiding by the ground improving body 15 to form a columnar excavation hole 11 and to form a connection excavation hole by communicating with the excavation hole 10 formed by the advanced excavation.SELECTED DRAWING: Figure 1
【課題】隣り合う拡底杭部と連結杭部の掘削孔を同じ掘削機で掘削形成することを可能にし、効率的且つ経済的に複数の拡底杭部と連結杭部からなる拡底杭を構築可能な場所打ちコンクリート杭の構築方法及び場所打ちコンクリート杭を提供する。【解決手段】隣り合う一対の拡底杭部１の地盤Ｇ、あるいは連結杭部８の地盤Ｇを地盤改良して円柱状の地盤改良体１５を形成する。地盤改良体１５を形成していない連結杭部８の地盤Ｇ、あるいは隣り合う一対の拡底杭部１の地盤Ｇを、杭用の掘削機９を用いて先行掘削して掘削孔１０を形成する。地盤改良体１５を形成した隣り合う一対の拡底杭部１の地盤Ｇ、あるいは連結杭部８の地盤Ｇを、杭用の掘削機９を用いるとともに地盤改良体１５で鉛直方向に案内しながら後行掘削して円柱状の掘削孔１１を形成しつつ先行掘削で形成した掘削孔１０と連通させて連結掘削孔を形成する。【選択図】図１
CONSTRUCTION METHOD OF CAST-IN-PLACE CONCRETE PILE AND CAST-IN-PLACE CONCRETE PILE
To provide the construction method of a cast-in-place concrete pile allowing to excavate and form excavation holes of an adjacent under-reamed pile part and a connection pile part by using the same excavator, and capable of efficiently and economically constructing the under-reamed pile comprising the multiple under-reamed pile parts and the connection pile parts, and the cast-in-place concrete pile.SOLUTION: A columnar ground improving body 15 is formed by improving the ground G of a pair of adjacent under-reamed pile parts 1, or the ground G of a connected pile part 8. The ground G of the connection pile part 8 with no ground improving body 15 formed, or the ground G of the pair of the adjacent under-reamed pile parts 1 is excavated in advance using an excavator 9 for a pile to form an excavation hole 10. The ground G of the pair of the adjacent under-reamed pile parts 1 formed with the ground improving body 15, or the ground G of the connection pile part 8 is excavated later using the excavator 9 for the pile and vertically guiding by the ground improving body 15 to form a columnar excavation hole 11 and to form a connection excavation hole by communicating with the excavation hole 10 formed by the advanced excavation.SELECTED DRAWING: Figure 1
【課題】隣り合う拡底杭部と連結杭部の掘削孔を同じ掘削機で掘削形成することを可能にし、効率的且つ経済的に複数の拡底杭部と連結杭部からなる拡底杭を構築可能な場所打ちコンクリート杭の構築方法及び場所打ちコンクリート杭を提供する。【解決手段】隣り合う一対の拡底杭部１の地盤Ｇ、あるいは連結杭部８の地盤Ｇを地盤改良して円柱状の地盤改良体１５を形成する。地盤改良体１５を形成していない連結杭部８の地盤Ｇ、あるいは隣り合う一対の拡底杭部１の地盤Ｇを、杭用の掘削機９を用いて先行掘削して掘削孔１０を形成する。地盤改良体１５を形成した隣り合う一対の拡底杭部１の地盤Ｇ、あるいは連結杭部８の地盤Ｇを、杭用の掘削機９を用いるとともに地盤改良体１５で鉛直方向に案内しながら後行掘削して円柱状の掘削孔１１を形成しつつ先行掘削で形成した掘削孔１０と連通させて連結掘削孔を形成する。【選択図】図１
CONSTRUCTION METHOD OF CAST-IN-PLACE CONCRETE PILE AND CAST-IN-PLACE CONCRETE PILE
場所打ちコンクリート杭の構築方法及び場所打ちコンクリート杭
MANO HIDEYUKI (Autor:in)
01.04.2022
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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