Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bag type expanded head prefabricated hollow pile and construction method thereof
The invention discloses a bag type expanded head prefabricated hollow pile and a construction method thereof.The bag type expanded head prefabricated hollow pile comprises a prefabricated pile body, two reserved steel pipe grouting hole channels are formed in the prefabricated pile body, two grout outlets are formed in the lower ends of the reserved steel pipe grouting hole channels, and non-return rubber pieces are arranged at the grout outlets; the non-return rubber piece is fixed to the side wall of the prefabricated pile body through a fixing bolt, a plurality of annular pile tooth-shaped protrusions are arranged on the outer wall of the prefabricated pile body, an expandable bag is arranged at the lower end of the prefabricated pile body, the bag is fixed to the prefabricated pile body at a pile body groove through a bag hoop, and the two grout outlets are both located in the bag. Through cooperation of the bag, the prefabricated pile body and the reserved steel pipe grouting hole channel, grout can be injected into the bag from the reserved steel pipe grouting hole channel according to design requirements, the pulling resistance, horizontal lateral displacement resistance and vertical bearing capacity of a pile foundation can be improved in a multiplied mode in the mode that the bag is opened through pile bottom grouting, and the manufacturing process is simple.
本发明公开了一种囊袋式扩大头预制空心桩及其施工方法，包括预制桩身，所述预制桩身的内部设置有两个预留钢管注浆孔道，所述预留钢管注浆孔道的下端设置有两个出浆口，所述出浆口处设置有止回胶片，所述止回胶片通过固定螺栓与预制桩身的侧壁固定，所述预制桩身的外壁设置有多道环桩齿状凸起，所述预制桩身的下端设置有可扩张的囊袋，所述囊袋通过囊袋抱箍在桩身凹槽处与预制桩身固定，两个所述出浆口均位于囊袋的内部；本发明主要通过囊袋、预制桩身和预留钢管注浆孔道的配合，可根据设计需求从预留钢管注浆孔道向囊袋内注入浆液，通过桩底注浆撑开囊袋的方式可成倍提高桩基的抗拔性能、抗水平侧向位移和竖向承载力，制作工艺简单。
Bag type expanded head prefabricated hollow pile and construction method thereof
The invention discloses a bag type expanded head prefabricated hollow pile and a construction method thereof.The bag type expanded head prefabricated hollow pile comprises a prefabricated pile body, two reserved steel pipe grouting hole channels are formed in the prefabricated pile body, two grout outlets are formed in the lower ends of the reserved steel pipe grouting hole channels, and non-return rubber pieces are arranged at the grout outlets; the non-return rubber piece is fixed to the side wall of the prefabricated pile body through a fixing bolt, a plurality of annular pile tooth-shaped protrusions are arranged on the outer wall of the prefabricated pile body, an expandable bag is arranged at the lower end of the prefabricated pile body, the bag is fixed to the prefabricated pile body at a pile body groove through a bag hoop, and the two grout outlets are both located in the bag. Through cooperation of the bag, the prefabricated pile body and the reserved steel pipe grouting hole channel, grout can be injected into the bag from the reserved steel pipe grouting hole channel according to design requirements, the pulling resistance, horizontal lateral displacement resistance and vertical bearing capacity of a pile foundation can be improved in a multiplied mode in the mode that the bag is opened through pile bottom grouting, and the manufacturing process is simple.
本发明公开了一种囊袋式扩大头预制空心桩及其施工方法，包括预制桩身，所述预制桩身的内部设置有两个预留钢管注浆孔道，所述预留钢管注浆孔道的下端设置有两个出浆口，所述出浆口处设置有止回胶片，所述止回胶片通过固定螺栓与预制桩身的侧壁固定，所述预制桩身的外壁设置有多道环桩齿状凸起，所述预制桩身的下端设置有可扩张的囊袋，所述囊袋通过囊袋抱箍在桩身凹槽处与预制桩身固定，两个所述出浆口均位于囊袋的内部；本发明主要通过囊袋、预制桩身和预留钢管注浆孔道的配合，可根据设计需求从预留钢管注浆孔道向囊袋内注入浆液，通过桩底注浆撑开囊袋的方式可成倍提高桩基的抗拔性能、抗水平侧向位移和竖向承载力，制作工艺简单。
Bag type expanded head prefabricated hollow pile and construction method thereof
一种囊袋式扩大头预制空心桩及其施工方法
QIAN HAIBO (Autor:in) / JIANG TAO (Autor:in) / DAI JIN (Autor:in) / GENG ZHE (Autor:in) / SHAO CHANGHUA (Autor:in) / DONG YUGUANG (Autor:in) / CHEN ZHIMING (Autor:in)
07.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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