Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Uplift combined pile with built-in prestressed pile core
The invention discloses an uplift combined pile with a built-in prestressed pile core. The uplift combined pile comprises the prestressed concrete pile core located on the inner side and anchoring slurry located on the outer side, wherein the prestressed concrete pile core is prefabricated through a pre-tensioning method, prestressed tendons and stirrups are arranged in the prestressed concrete pile core, the anchoring slurry is wrapped around the prestressed concrete pile core, and the anchoring slurry is formed by placing the prestressed concrete pile core in a pile hole, conducting primary grouting solidification shrinkage and then conducting secondary grouting solidification. According to the uplift combined pile with the built-in prestressed pile core, the advantages of an existing pre-tensioning method pre-stress technology and the advantages of a cast-in-place uplift pile are creatively combined, the uplift pile obtained through the method is good in durability and economical efficiency and high in bearing capacity, the bonding performance between the pile body and the hole wall is good, energy is saved and materials are reduced in the construction process, and the construction cost is greatly reduced.
本发明公开一种内置预应力桩芯的抗拔组合桩，该抗拔组合桩包括位于内侧的预应力混凝土桩芯以及位于外侧的锚固浆体，所述预应力混凝土桩芯通过先张法预制而成，内部设置有预应力筋和箍筋；所述锚固浆体包裹所述预应力混凝土桩芯，且所述锚固桨体通过将所述预应力混凝土桩芯放置在桩孔后，经过初次注浆凝固收缩后，再进行二次注浆凝固后形成。本发明创新性地结合现有的先张法预应力工艺和现场施工灌注抗拔桩的优点，该方法得到的抗拔桩耐久性和经济性好，承载力高，桩身与孔壁之间的粘结性能好，且施工过程节能减材，大大降低施工成本。
Uplift combined pile with built-in prestressed pile core
The invention discloses an uplift combined pile with a built-in prestressed pile core. The uplift combined pile comprises the prestressed concrete pile core located on the inner side and anchoring slurry located on the outer side, wherein the prestressed concrete pile core is prefabricated through a pre-tensioning method, prestressed tendons and stirrups are arranged in the prestressed concrete pile core, the anchoring slurry is wrapped around the prestressed concrete pile core, and the anchoring slurry is formed by placing the prestressed concrete pile core in a pile hole, conducting primary grouting solidification shrinkage and then conducting secondary grouting solidification. According to the uplift combined pile with the built-in prestressed pile core, the advantages of an existing pre-tensioning method pre-stress technology and the advantages of a cast-in-place uplift pile are creatively combined, the uplift pile obtained through the method is good in durability and economical efficiency and high in bearing capacity, the bonding performance between the pile body and the hole wall is good, energy is saved and materials are reduced in the construction process, and the construction cost is greatly reduced.
本发明公开一种内置预应力桩芯的抗拔组合桩，该抗拔组合桩包括位于内侧的预应力混凝土桩芯以及位于外侧的锚固浆体，所述预应力混凝土桩芯通过先张法预制而成，内部设置有预应力筋和箍筋；所述锚固浆体包裹所述预应力混凝土桩芯，且所述锚固桨体通过将所述预应力混凝土桩芯放置在桩孔后，经过初次注浆凝固收缩后，再进行二次注浆凝固后形成。本发明创新性地结合现有的先张法预应力工艺和现场施工灌注抗拔桩的优点，该方法得到的抗拔桩耐久性和经济性好，承载力高，桩身与孔壁之间的粘结性能好，且施工过程节能减材，大大降低施工成本。
Uplift combined pile with built-in prestressed pile core
一种内置预应力桩芯的抗拔组合桩
YANG XUELIN (Autor:in) / ZHU WENWEI (Autor:in) / SHEN MIGANG (Autor:in) / WU XIAOPING (Autor:in) / SHI BIFENG (Autor:in) / ZHU JUNLIN (Autor:in)
01.10.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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