Precast pipe ring filled with light filler concrete and precasting method

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...

Images