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Precast pipe ring filled with light filler concrete and precasting method

A technology of concrete pipes and fillers, which is applied in the field of civil engineering, can solve problems such as large amount of reinforcement and difficulty in pouring pipe rings, and achieve the effects of green construction, saving raw materials, and improving construction efficiency

Inactive Publication Date: 2020-01-14
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The amount of reinforcement in the tunnel pipe ring structure is relatively large, which often makes it difficult to pour the pipe ring

Method used

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  • Precast pipe ring filled with light filler concrete and precasting method
  • Precast pipe ring filled with light filler concrete and precasting method
  • Precast pipe ring filled with light filler concrete and precasting method

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Experimental program
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Effect test

Embodiment

[0028] The invention provides a prefabricated concrete segment with built-in lightweight filler and a prefabrication method. The prefabricated concrete segment with built-in lightweight filler can be applied to underground projects constructed by prefabricated assembly methods, including but not limited to pipe jacking tunnels, underground pipe Corridor etc.

[0029] The structure of the prefabricated built-in lightweight concrete pipe ring is as follows: Figure 1-4 As shown, it includes the pipe ring skeleton, the lightweight filling body arranged in the pipe ring skeleton, and the pipe ring body formed by layered casting. The stirrups are composed of lightweight fillers, which are arranged in the cavity surrounded by the main body of the skeleton and the stirrups, and fixed on the main ribs by hooks.

[0030] The material of the prefabricated concrete pipe ring with built-in lightweight filler can be steel (fiber) reinforced concrete, fiber steel (fiber) reinforced concret...

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PUM

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Abstract

The invention relates to a precast pipe ring filled with light filler concrete and a precasting method; and the precast pipe ring is applied to underground engineering constructed by a precasting assembly method. The precast pipe ring comprises a pipe ring skeleton, a light filler arranged in the pipe ring skeleton, and a pipe ring main body molded by casting in a layering mode; the pipe ring skeleton comprises a skeleton main body consisting of multiple annular main ribs, and multiple stirrups for binding the skeleton main body; and the light filler is arranged in an annular cavity surroundedby the skeleton main body and the stirrups, and is fixed on the main ribs through hanging hooks. Compared with the prior art, the precast pipe ring has such advantages as reduction of self weight ofthe pipe ring, increment of the size of the precast pipe ring, improvement of the construction efficiency and saving of raw materials.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a prefabricated concrete pipe ring with a built-in lightweight filling body and a prefabricated method. Background technique [0002] Based on the good mechanical properties and economical characteristics of steel (fiber) reinforced concrete materials, prefabricated pipe rings are used as bearing structures in underground projects. They are mainly used in municipal pipelines, underground passages, underground pipe galleries, etc. The most commonly used pipe rings are steel ( Fiber) reinforced concrete pipe ring. Steel (fiber) reinforced concrete pipe rings are generally cast in solid form, resulting in a large pipe ring weight and a relatively large restriction on the size of pipe rings used for assembly, which in turn results in more seams per unit length of tunnel pipe rings, which not only affects the structural force, but also And because there are many joints, the...

Claims

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Application Information

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IPC IPC(8): E03F3/04E02D29/045B28B21/04B28B21/56
CPCB28B21/04B28B21/56E02D29/10E03F3/04
Inventor 谢东武丁文其张清照赵程
Owner TONGJI UNIV
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