A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide a pile foundation structure that is configured to prevent sharp decrease of yield strength in a hollow prefabricated pile due to a great earthquake while performing pile foundation construction to build up the hollow prefabricated pile in a drilling hole.SOLUTION: At least a portion of a pile in a pile foundation becomes a double annular double pile structure comprising an outer pile 1 of a hollow prefabricated pile and an inner pile 6 of the hollow prefabricated pile. A spacer 7 is installed between the outer pile 1 and the inner pile 6, and a gap of a constant interval is provided. Also, an excavation intra-hole including this gap is filled with a mixture of a pile boundary fixative solution and an excavation soil and sand 4, and thereby the pile foundation structure is formed in which the outer pile 1 and the inner pile 6 are integrated.SELECTED DRAWING: Figure 1
【課題】 掘削孔に中空既製杭を建て込む杭基礎施工を行う中で巨大地震等による前記中空既製杭の急激な耐力低下の防止を図ってできた杭基礎構造を提供する。【解決手段】 杭基礎における杭の少なくとも一部が、中空既製杭の外杭１と中空既製杭の内杭６からなる二重環状の二重杭構造となっている。外杭１と内杭６との間にはスペーサ７が設置され、一定間隔の隙間が設けられている。また、この隙間を含む掘削孔内は、杭周固定液と掘削土砂との混合物４で満たされ、外杭１と内杭６とが一体化した杭基礎構造となっている。【選択図】 図１
PROBLEM TO BE SOLVED: To provide a pile foundation structure that is configured to prevent sharp decrease of yield strength in a hollow prefabricated pile due to a great earthquake while performing pile foundation construction to build up the hollow prefabricated pile in a drilling hole.SOLUTION: At least a portion of a pile in a pile foundation becomes a double annular double pile structure comprising an outer pile 1 of a hollow prefabricated pile and an inner pile 6 of the hollow prefabricated pile. A spacer 7 is installed between the outer pile 1 and the inner pile 6, and a gap of a constant interval is provided. Also, an excavation intra-hole including this gap is filled with a mixture of a pile boundary fixative solution and an excavation soil and sand 4, and thereby the pile foundation structure is formed in which the outer pile 1 and the inner pile 6 are integrated.SELECTED DRAWING: Figure 1
【課題】 掘削孔に中空既製杭を建て込む杭基礎施工を行う中で巨大地震等による前記中空既製杭の急激な耐力低下の防止を図ってできた杭基礎構造を提供する。【解決手段】 杭基礎における杭の少なくとも一部が、中空既製杭の外杭１と中空既製杭の内杭６からなる二重環状の二重杭構造となっている。外杭１と内杭６との間にはスペーサ７が設置され、一定間隔の隙間が設けられている。また、この隙間を含む掘削孔内は、杭周固定液と掘削土砂との混合物４で満たされ、外杭１と内杭６とが一体化した杭基礎構造となっている。【選択図】 図１
PILE FOUNDATION STRUCTURE
杭基礎構造
ASAI YOICHI (author)
2016-12-28
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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