Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Foundation pit supporting cast-in-place large-diameter tubular pile and tubular pile construction method
The invention relates to the technical field of foundation pit supporting, in particular to a foundation pit supporting cast-in-place large-diameter tubular pile and a tubular pile construction method.The overall stress cast-in-place large-diameter tubular pile without a lining formwork and a reinforcement cage is arranged and comprises a supporting and fixing pipe fitting vertically arranged in a pile hole, and the supporting and fixing pipe fitting is designed to be of a hollow structure with the upper portion and the lower portion open. A certain gap is kept between the outer side wall of the supporting and fixing pipe fitting and the inner side wall of the pile hole, and pile body plain concrete is poured and filled in the gap, that is, the permanent supporting and fixing pipe fitting with a certain thickness is additionally arranged on the inner wall of the large-diameter cast-in-place pipe pile to replace an original reinforcement cage to provide bending rigidity of the pile; a reinforcement cage in an original pile is omitted, in addition, pile body plain concrete meeting the standard strength requirement is adopted to replace original reinforced concrete to provide shear strength, and the construction difficulty and the construction cost are greatly reduced.
本发明涉及基坑支护技术领域，具体涉及一种基坑支护现浇大直径管桩及管桩施工方法，设置一种无内衬模板和钢筋笼的整体受力现浇大直径管桩，包括竖向置于桩孔内支固管件，支固管件设计呈上下开口的中空结构，支固管件外侧壁与桩孔内侧壁之间保持有一定间隙，间隙内浇筑填充有桩身素混凝土，即通过在大直径现浇管桩内壁增加一个永久性的一定厚度的支固管件代替原钢筋笼提供桩的抗弯刚度，依靠桩孔内侧壁四周围土层约束，取消原桩内钢筋笼，另外采用满足规范强度要求的桩身素混凝土代替原有钢筋混凝土提供抗剪强度，大大降低施工难度和造价。
Foundation pit supporting cast-in-place large-diameter tubular pile and tubular pile construction method
The invention relates to the technical field of foundation pit supporting, in particular to a foundation pit supporting cast-in-place large-diameter tubular pile and a tubular pile construction method.The overall stress cast-in-place large-diameter tubular pile without a lining formwork and a reinforcement cage is arranged and comprises a supporting and fixing pipe fitting vertically arranged in a pile hole, and the supporting and fixing pipe fitting is designed to be of a hollow structure with the upper portion and the lower portion open. A certain gap is kept between the outer side wall of the supporting and fixing pipe fitting and the inner side wall of the pile hole, and pile body plain concrete is poured and filled in the gap, that is, the permanent supporting and fixing pipe fitting with a certain thickness is additionally arranged on the inner wall of the large-diameter cast-in-place pipe pile to replace an original reinforcement cage to provide bending rigidity of the pile; a reinforcement cage in an original pile is omitted, in addition, pile body plain concrete meeting the standard strength requirement is adopted to replace original reinforced concrete to provide shear strength, and the construction difficulty and the construction cost are greatly reduced.
本发明涉及基坑支护技术领域，具体涉及一种基坑支护现浇大直径管桩及管桩施工方法，设置一种无内衬模板和钢筋笼的整体受力现浇大直径管桩，包括竖向置于桩孔内支固管件，支固管件设计呈上下开口的中空结构，支固管件外侧壁与桩孔内侧壁之间保持有一定间隙，间隙内浇筑填充有桩身素混凝土，即通过在大直径现浇管桩内壁增加一个永久性的一定厚度的支固管件代替原钢筋笼提供桩的抗弯刚度，依靠桩孔内侧壁四周围土层约束，取消原桩内钢筋笼，另外采用满足规范强度要求的桩身素混凝土代替原有钢筋混凝土提供抗剪强度，大大降低施工难度和造价。
Foundation pit supporting cast-in-place large-diameter tubular pile and tubular pile construction method
一种基坑支护现浇大直径管桩及管桩施工方法
29.07.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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