Prefabricated combined type reinforced concrete shaft for pipe-jacking working pit, electric power and heating power

Abstract

The invention belongs to the technical field of building construction, and in particular relates to a prefabricated combined type reinforced concrete shaft for a pipe-jacking working pit, electric power and heating power. The prefabricated combined type reinforced concrete shaft comprises multiple rings of prefabricated assembly components; each prefabricated assembly component comprises a plurality of prefabricated assembly blocks, embedded parts arranged on the prefabricated assembly blocks, and reversed V-shaped supports for reinforcing the two adjacent prefabricated assembly blocks; the every two prefabricated assembly blocks are connected with each other by means of the embedded part; the embedded parts are connected with one another by means of bolts; each ring of prefabricated assembly component comprises the two type A prefabricated assembly blocks with rectilinear cross sections and the two type B prefabricated assembly blocks with arc-shaped cross sections, wherein the crosssection is in a drum shape after the two type A prefabricated assembly blocks are spliced with the two type B prefabricated assembly blocks. The prefabricated combined type reinforced concrete shaft adopts factory prefabrication and field assembly, is convenient to use, high in safety and short in construction period, realizes industrialized production, is good in quality controllability and highin bearing capacity, is not easily deformed and damaged, and is suitable for shafts of different sizes.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a prefabricated combined reinforced concrete shaft suitable for pipe jacking pits, electric power and thermal power. Background technique [0002] Anchor shotcrete is a common construction technology for working wells in building construction, which is prone to noise and dust. With the emphasis on environmental protection in the country, it is not allowed to use bagged cement on site, and it is not allowed to mix materials on site, so it can only be used Mixing station commercial mixing (dry mixing material), however, is restricted by traffic during the day and disturbed by people at night, so it can only be used during the day after feeding at night. However, a small amount of water will be added to the dry mixing material during the mixing process Therefore, the dry mix will condense and fail after more than 4 hours, and the invalid dry mix will have n...

AI Technical Summary

Problems solved by technology

[0002] Anchor shotcrete is a common construction technology for working wells in building construction, which is prone to noise and dust. With the emphasis on environmental protection in the country, it is not allowed to use bagged cement on site, and it is not allowed to mix materials on site, so it can only be used Mixing station commercial mixing (dry mixing material), however, is restricted by traffic during the day and disturbed by people at night, so it can only be used during the day after feeding at night. However, a small amount of water will be added to the dry mixing material during the mixing process Therefore, the dry mix will condense and fail after more than 4 hours, and the invalid dry mix will have no strength after spraying, and there will be a greater safety hazard; in addition, the existing shaft has poor load-bearing capacity and is easy to deform and damage, which is not conducive to the shaft Normal use

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