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A platform for research: civil engineering, architecture and urbanism
Pile splicing method for embedding prestressed concrete pipe pile into cast-in-place expanded pile head
The invention discloses a pile splicing method for embedding a prestressed concrete pipe pile into a cast-in-place expanded pile head, which comprises the following steps of: firstly, constructing a self-sealing bottom type expanded pile head reinforcement cage system; secondly, a supporting hoop device, a concrete supporting formwork and a pipe pile pouring external formwork are sequentially installed on the outer wall of the upper end of the prestressed concrete pipe pile to be subjected to pile splicing operation; then, the self-bottom-sealing type expanded pile head reinforcement cage system is inserted into a hollow pipe hole in the upper end of the prestressed concrete pipe pile; and finally, concrete cast-in-place pile splicing operation is conducted in the pipe pile cast external formwork at the upper end of the prestressed concrete pipe pile. According to the pile splicing method for embedding the prestressed concrete pipe pile into the cast-in-place expanded pile head, the procedure is simple, operation is convenient and fast, the pile splicing height can be actually adjusted and controlled, the pile splicing efficiency is high, the pile splicing joint is good, and the whole pile splicing method is stable and reliable; the combined pipe pile formed by combining the poured prestressed pipe pile and the cast-in-place expanded pile head has the advantages of being good in corrosion resistance and rust resistance, high in strength and pressure resistance, good in stability, safe and reliable.
本发明公开了一种预应力混凝土管桩嵌入现浇扩大桩头的接桩方法，首先，构建自封底式扩大桩头钢筋笼系统；其次，在待接桩作业的预应力混凝土管桩上端外壁上依次安装支撑抱箍装置、混凝土支撑模板及管桩浇注外置模板；然后，将自封底式扩大桩头钢筋笼系统插入至预应力混凝土管桩上端中空管孔内；最后，在预应力混凝土管桩上端的管桩浇注外置模板内进行混凝土现浇注接桩作业。本发明一种预应力混凝土管桩嵌入现浇扩大桩头的接桩方法，程序简单，操作方便快捷，接桩高度可实际调控，接桩效率高，接桩处衔接性好，整体稳定可靠；浇筑后的预应力管桩与现浇扩大桩头结合的组合管桩，具有抗腐蚀、抗锈蚀性能好，强度和抗压性高，稳定性好，安全可靠的特点。
Pile splicing method for embedding prestressed concrete pipe pile into cast-in-place expanded pile head
The invention discloses a pile splicing method for embedding a prestressed concrete pipe pile into a cast-in-place expanded pile head, which comprises the following steps of: firstly, constructing a self-sealing bottom type expanded pile head reinforcement cage system; secondly, a supporting hoop device, a concrete supporting formwork and a pipe pile pouring external formwork are sequentially installed on the outer wall of the upper end of the prestressed concrete pipe pile to be subjected to pile splicing operation; then, the self-bottom-sealing type expanded pile head reinforcement cage system is inserted into a hollow pipe hole in the upper end of the prestressed concrete pipe pile; and finally, concrete cast-in-place pile splicing operation is conducted in the pipe pile cast external formwork at the upper end of the prestressed concrete pipe pile. According to the pile splicing method for embedding the prestressed concrete pipe pile into the cast-in-place expanded pile head, the procedure is simple, operation is convenient and fast, the pile splicing height can be actually adjusted and controlled, the pile splicing efficiency is high, the pile splicing joint is good, and the whole pile splicing method is stable and reliable; the combined pipe pile formed by combining the poured prestressed pipe pile and the cast-in-place expanded pile head has the advantages of being good in corrosion resistance and rust resistance, high in strength and pressure resistance, good in stability, safe and reliable.
本发明公开了一种预应力混凝土管桩嵌入现浇扩大桩头的接桩方法，首先，构建自封底式扩大桩头钢筋笼系统；其次，在待接桩作业的预应力混凝土管桩上端外壁上依次安装支撑抱箍装置、混凝土支撑模板及管桩浇注外置模板；然后，将自封底式扩大桩头钢筋笼系统插入至预应力混凝土管桩上端中空管孔内；最后，在预应力混凝土管桩上端的管桩浇注外置模板内进行混凝土现浇注接桩作业。本发明一种预应力混凝土管桩嵌入现浇扩大桩头的接桩方法，程序简单，操作方便快捷，接桩高度可实际调控，接桩效率高，接桩处衔接性好，整体稳定可靠；浇筑后的预应力管桩与现浇扩大桩头结合的组合管桩，具有抗腐蚀、抗锈蚀性能好，强度和抗压性高，稳定性好，安全可靠的特点。
Pile splicing method for embedding prestressed concrete pipe pile into cast-in-place expanded pile head
一种预应力混凝土管桩嵌入现浇扩大桩头的接桩方法
SHI XIAOTAO (author) / WU XIAOLONG (author) / DAI PENGCHENG (author) / GU YONGGEN (author) / WEI CHUNAN (author) / PANG HAOCHONG (author)
2023-08-04
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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