Prefabricated power tunnel and mounting method thereof

Abstract

The invention relates to a prefabricated power tunnel and a mounting method thereof. The prefabricated power tunnel comprises a plurality of series box culverts, wherein in two adjacent box culverts, a tenon is arranged at the adjacent end of one box culvert; a mortice matched with the tenon is formed in the adjacent end of the other box culvert; a stepped bump is arranged on the tenon; a stepped groove matched with the stepped bump is formed in the mortice; and the tenon and the mortice are nested. The two adjacent box culverts are lapped together by applying pre-stress on a construction site for tensioning. According to the invention, the power tunnel can be directly produced and prefabricated on the construction site.

Description

technical field [0001] The invention relates to the field of construction, in particular to a prefabricated power tunnel and an installation method thereof. Background technique [0002] In the construction of existing power tunnels, slotted cast-in-place reinforced concrete structures are often used for construction. However, this construction method has a long construction period and foundation pits cannot be backfilled for a long time, and the construction has a great impact on the city. [0003] On the other hand, slotted cast-in-place also has the following disadvantages: the laying of the waterstop is random, and it is not easy to ensure the waterproof effect of the project; the formwork and binding steel bars require high proficiency of on-site workers. Due to the reduction of skilled workers at this stage, the quality of the project is getting worse. It is not easy to be guaranteed; cast-in-place still uses wooden formwork, which wastes a lot of wood and labor, and a...

AI Technical Summary

Problems solved by technology

[0002] In the construction of existing power tunnels, slotted cast-in-place reinforced concrete structures are often used for construction. However, this construction method has a long cast-in-place construction period, and the foundation pit cannot be backfilled for a long time, and the construction has a great impact on the city.

[0003] On the other hand, slotted cast-in-place also has the following disadvantages: the laying of the waterstop is random, and it is not easy to ensure the waterproof effect of the project; the formwork and binding steel bars require high proficiency of on-site workers. Due to the reduction of skilled workers at this stage, the quality of the project is getting worse. It is not easy to be guaranteed; cast-in-place still uses wooden formwork, which wastes a lot of wood and labor, and at the same time increases the amount of deforestation invisibly, which is contrary to national policies; there is a large demand for labor, and the structural maintenance takes a long time

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