Production process of ultra-large-diameter UHPC pipe pile and horizontal prefabricated formwork system

Abstract

The invention discloses a horizontal prefabricated formwork system for an ultra-large-diameter UHPC pipe pile. The system comprises an openable formwork, wherein the openable formwork comprises an outer formwork and an inner formwork; a pipe pile forming space is formed between the outer formwork and the inner formwork; the outer formwork comprises a semicircular section, the two ends of the semicircular section are rotationally connected with a first arc section and a second arc section correspondingly, and a longitudinal through long groove is formed between the first arc section and the second arc section; the inner formwork comprises a third arc section and a fourth arc section, and the two ends of the third arc section are connected with the fourth arc section through wedge blocks. The invention further discloses a production process of the ultra-large-diameter UHPC pipe pile. The production process comprises the steps of splicing the openable formwork, pouring concrete, standingand maintaining the concrete at the normal temperature, and removing the formwork. By the adoption of the formwork system and the prefabricating process, centrifugation and autoclaved curing are not needed when the ultra-large-diameter UHPC pipe pile is horizontally prefabricated, the installation cost of a production line and the prefabricating cost of the pipe pile can be reduced, meanwhile, theprefabricating quality and efficiency are guaranteed, and the good application prospect is achieved.

Description

technical field [0001] The invention relates to the field of civil engineering UHPC pipe pile production. More specifically, the present invention relates to a production process of super-large-diameter UHPC pipe piles and a horizontal prefabricated formwork system. Background technique [0002] With the implementation of my country's marine strategy and the rapid development of coastal cities, the construction of large structures in the sea is in the ascendant. At present, the substructure mainly adopts bored piles and large-diameter steel pipe piles. In the sea environment with high winds and rough waves, traditional bored piles have problems such as low work efficiency and heavy weight. Although large-diameter steel pipe piles can improve construction efficiency, they are expensive and require long-term corrosion resistance protection, which is not economical. good. [0003] Due to factors such as motor starting power and steel mold stability, the maximum diameter of do...

AI Technical Summary

Problems solved by technology

In the sea environment with high winds and rough waves, traditional bored piles have problems such as low work efficiency and heavy weight. Although large-diameter steel pipe piles can improve construction efficiency, they are expensive and require long-term corrosion protection, which is not economical. good

[0003] Due to

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