A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
INSTALLATION METHOD OF FOUNDATION PILE, FOUNDATION PILE STRUCTURE, AND DOUBLE PRECAST PILE
PROBLEM TO BE SOLVED: To enhance horizontal and vertical strength of each pile hole, by combining outside and inside precast piles while not enlarging an excavated diameter of the pile hole and maintaining work efficiency.SOLUTION: A pile hole 3 (a pile hole shaft part 4, a widened diameter part 5) is excavated to a bearing ground, and a consolidation liquid 6 is filled (a). An outside precast pile 10 (a lower pile 10A, an upper pile 10B) is embedded in the pile hole 3, and annular protrusions 14a, 14b are positioned inside a solidification liquid 7 (b). Soil cement, mud, and other matters accumulated in a hollow part 12 of the outside precast pile 10 is discharged on the ground using a spiral rod 52 (c). The hollow part 12 of the outside precast pile 10 is emptied (d). The inner solidification liquid 7 is filled inside the hollow part 12 of the outside precast pile 10 (e). An inside precast pile 20 (a lower pile 20A, an upper pile 20B) is embedded in the hollow part 12 of the outside precast pile 10, and an annular protrusion 24a of the inside precast pile 20 is positioned inside the lower solidification liquid 7 (f). Top edge parts of the inside and outside precast piles 10, 20 are connected by a connector 40, to form a precast pile 30 of the present invention.SELECTED DRAWING: Figure 2
【課題】杭穴の掘削径を拡大せずにかつ作業効率も維持して、内外既製杭の組み合わせにより、１本の杭穴に対する水平耐力、鉛直耐力を高める。【解決手段】支持地盤まで、杭穴３（杭穴軸部４、拡径部５）を掘削して、根固め液６を充填する（ａ）。杭穴３内に外既製杭１０（下杭１０Ａ、上杭１０Ｂ）を埋設し、環状突起１４ａ、１４ｂを根固め液７内に位置させる（ｂ）。スパイラルロッド５２で外既製杭１０の中空部１２溜まったソイルセメント、泥土などを地上に排出し（ｃ）、外既製杭１０の中空部１２内を空洞にする（ｄ）。外既製杭１０の中空部１２内に、内根固め液７を充填する（ｅ）。外既製杭１０の中空部１２に、内既製杭２０（下杭２０Ａに、上杭２０Ｂ）を埋設し内既製杭２０の環状突起２４ａを下根固め液７内に位置させる（ｆ）。内外既製杭１０、２０の上端部を連結具４０で連結して、この発明の既製杭３０を構成する。【選択図】図２
INSTALLATION METHOD OF FOUNDATION PILE, FOUNDATION PILE STRUCTURE, AND DOUBLE PRECAST PILE
PROBLEM TO BE SOLVED: To enhance horizontal and vertical strength of each pile hole, by combining outside and inside precast piles while not enlarging an excavated diameter of the pile hole and maintaining work efficiency.SOLUTION: A pile hole 3 (a pile hole shaft part 4, a widened diameter part 5) is excavated to a bearing ground, and a consolidation liquid 6 is filled (a). An outside precast pile 10 (a lower pile 10A, an upper pile 10B) is embedded in the pile hole 3, and annular protrusions 14a, 14b are positioned inside a solidification liquid 7 (b). Soil cement, mud, and other matters accumulated in a hollow part 12 of the outside precast pile 10 is discharged on the ground using a spiral rod 52 (c). The hollow part 12 of the outside precast pile 10 is emptied (d). The inner solidification liquid 7 is filled inside the hollow part 12 of the outside precast pile 10 (e). An inside precast pile 20 (a lower pile 20A, an upper pile 20B) is embedded in the hollow part 12 of the outside precast pile 10, and an annular protrusion 24a of the inside precast pile 20 is positioned inside the lower solidification liquid 7 (f). Top edge parts of the inside and outside precast piles 10, 20 are connected by a connector 40, to form a precast pile 30 of the present invention.SELECTED DRAWING: Figure 2
【課題】杭穴の掘削径を拡大せずにかつ作業効率も維持して、内外既製杭の組み合わせにより、１本の杭穴に対する水平耐力、鉛直耐力を高める。【解決手段】支持地盤まで、杭穴３（杭穴軸部４、拡径部５）を掘削して、根固め液６を充填する（ａ）。杭穴３内に外既製杭１０（下杭１０Ａ、上杭１０Ｂ）を埋設し、環状突起１４ａ、１４ｂを根固め液７内に位置させる（ｂ）。スパイラルロッド５２で外既製杭１０の中空部１２溜まったソイルセメント、泥土などを地上に排出し（ｃ）、外既製杭１０の中空部１２内を空洞にする（ｄ）。外既製杭１０の中空部１２内に、内根固め液７を充填する（ｅ）。外既製杭１０の中空部１２に、内既製杭２０（下杭２０Ａに、上杭２０Ｂ）を埋設し内既製杭２０の環状突起２４ａを下根固め液７内に位置させる（ｆ）。内外既製杭１０、２０の上端部を連結具４０で連結して、この発明の既製杭３０を構成する。【選択図】図２
INSTALLATION METHOD OF FOUNDATION PILE, FOUNDATION PILE STRUCTURE, AND DOUBLE PRECAST PILE
基礎杭の構築方法、基礎杭構造および二重既製杭
KITANI YOSHINOBU (author)
2017-12-21
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Construction method of precast pile foundation and precast pile foundation
| European Patent Office | 2024