Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to a prestressed pipeline mud jacking structure and mud jacking process based on a string tensioning theory. The structure comprises three slurry guide pipes which are arranged on a prestressed pipeline and extend upwards to the upper surface of a beam body, and the three slurry guide pipes are all arranged in the beam body in advance, so that a string structure with the slurry guide pipes as supporting rods, the prestressed pipeline as an upper string and the beam body as a lower string is formed; according to the process, slurry is grouted from the top of a middle slurry guide pipe and flows from top to bottom, the middle of the prestressed pipeline is grouted, then grouting is conducted from the ends of the two sides of the prestressed pipeline respectively, and grouting is stopped until thick slurry flows out of the tops of the slurry guide pipes on the two sides. Grouting in the prestressed pipeline can be denser, the bearing capacity of the structure is improved, and the service life of the structure is prolonged.
本发明涉及一种基于张弦理论的预应力管道压浆结构及压浆工艺，该结构包括设置在所述预应力管道上且向上延伸至梁体上表面的三根导浆管，三根导浆管均预置于梁体中，从而构成以导浆管为支撑杆、以预应力管道为上弦、以梁体为下弦的张弦结构；该工艺首先使浆液从中间导浆管顶部注浆，浆液自上向下流动，对预应力管道的中部进行压浆，然后分别从预应力管道两侧端部进行注浆，直到两侧导浆管的顶部流出浓浆后即停止注浆。本发明能够使预应力管道内压浆更密实、提高结构的承载能力、延长结构的寿命。
The invention relates to a prestressed pipeline mud jacking structure and mud jacking process based on a string tensioning theory. The structure comprises three slurry guide pipes which are arranged on a prestressed pipeline and extend upwards to the upper surface of a beam body, and the three slurry guide pipes are all arranged in the beam body in advance, so that a string structure with the slurry guide pipes as supporting rods, the prestressed pipeline as an upper string and the beam body as a lower string is formed; according to the process, slurry is grouted from the top of a middle slurry guide pipe and flows from top to bottom, the middle of the prestressed pipeline is grouted, then grouting is conducted from the ends of the two sides of the prestressed pipeline respectively, and grouting is stopped until thick slurry flows out of the tops of the slurry guide pipes on the two sides. Grouting in the prestressed pipeline can be denser, the bearing capacity of the structure is improved, and the service life of the structure is prolonged.
本发明涉及一种基于张弦理论的预应力管道压浆结构及压浆工艺，该结构包括设置在所述预应力管道上且向上延伸至梁体上表面的三根导浆管，三根导浆管均预置于梁体中，从而构成以导浆管为支撑杆、以预应力管道为上弦、以梁体为下弦的张弦结构；该工艺首先使浆液从中间导浆管顶部注浆，浆液自上向下流动，对预应力管道的中部进行压浆，然后分别从预应力管道两侧端部进行注浆，直到两侧导浆管的顶部流出浓浆后即停止注浆。本发明能够使预应力管道内压浆更密实、提高结构的承载能力、延长结构的寿命。
Prestressed pipeline mud jacking structure and mud jacking process based on string tensioning theory
基于张弦理论的预应力管道压浆结构及压浆工艺
XIA JIN (Autor:in)
28.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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