Anti-collision self-protection precast concrete component

Abstract

The invention relates to an anti-collision self-protection precast concrete component. Buffer edges are arranged; protection edges are arranged outside the buffer edges; the protection edges are tightly attached to the buffer edges and are anchored into concrete through edge anchors; the protection edges conduct anti-collision self-protection of the first stage; and the buffer edges have the anti-collision self-protection function of the second stage. In a manufacturing process, shaping partitions are used for separation, and the precast component with the precise end face is manufactured. According to the precast component, a plate aligner, a combined inner support for foundation pit support and a fabricated enclosing purlin are used, precast slab parts are connected through longitudinal connectors and built-in longitudinal bolts or are connected through outer wrapping bolts, and an axial pressure adjuster is arranged to adjust axial force and deformation between the precast components; and after being used as the inner support for multiple times, the precast slab part can also be used as a fabricated terrace, a gravity dam coping plate of the foundation pit support and a fabricated enclosing wall. According to the technology, the cost is reduced, the construction period is shortened, the construction is convenient, energy conservation and environmental protection are achieved, the quality is improved, and remarkable economic and social benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of foundation pit engineering, in particular to an anti-collision self-protective concrete prefabricated component. Background technique [0002] Concrete structure is a structural form widely used in civil engineering, and it is divided into cast-in-place, prefabricated and assembled integral forms, and concrete prefabricated components are the basic components of assembled and assembled integral. Existing concrete prefabricated components are generally connected into a whole by means of cast-in-place or grouting even in prefabricated concrete structures, and it is difficult and rare to achieve multiple reuse of concrete prefabricated components. [0003] The foundation pit support (or called the foundation pit enclosure) in the foundation pit engineering occupies an important part of the construction cost. The method of increasing the fulcrum is adopted to reduce the bending moment and shear force of the ...

AI Technical Summary

Problems solved by technology

[0005] The concrete supports used for foundation pit support are inevitably collided by excavators and other construction machinery during the process of transportation, stacking and excavation of earth, especially the concrete at the corners of the components is easily damaged. The sharp shape is caused, on the other hand, it is also caused by the angular concrete close to the formwork. The existence of the formwork leads to poor vibrating and compacting effect of the concrete close to the formwork

This shortcoming leads to a reduction in the life of the concrete prefabricated components for repeated use. In order to increase the number of repeated uses, the anti-collision self-protection measures of the prefabricated components are particularly important.

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