Assembly type concrete air duct for underground engineering and construction method thereof

Abstract

The invention discloses an assembly type concrete air duct for underground engineering. The assembled concrete air duct for underground engineering comprises an air duct base plate, an air duct side wall and an air duct roof plate, wherein the air duct bottom plate consists of a plurality of precast concrete air duct base plates which are assembled along the air duct direction. The air duct bottom plate consists of a plurality of precast concrete air duct bottom plates which are assembled along the air duct direction; the air duct side wall and the air duct roof plate are poured into shape by concrete pouring; the two ends of the air duct base plate are provided with upper hooks and the inner side of the side wall of the air channel is provided with lower hooks matched with the hooks on the bottom board of the wind channel. The invention also discloses a construction method of the assembly type concrete air duct for underground engineering. The construction method comprises the following steps of manufacturing precast concrete air duct base plate; manufacturing and constructing of the air duct side wall and air duct roof plate; installing the bottom plate of precast concrete duct; completing assembling of air duct bottom plate; carrying out sealing treatment on the assembly type concrete air duct. The assembly type concrete air duct for underground engineering and the construction method thereof improve the prefabricated assembly rate of the concrete, reduce the labor consumption and template consumption, and speed up the progress of construction projects.

Description

technical field [0001] The invention relates to the technical field of underground engineering construction, in particular to an underground engineering assembled concrete air duct and a construction method thereof. Background technique [0002] With the development of domestic underground engineering, due to the particularity of the underground location of underground engineering, it is more necessary to consider good ventilation conditions. In the prior art, the air ducts in underground engineering (subway stations, underground pipe corridors) mostly use cast-in-situ concrete air ducts, and the air ducts of underground engineering are often wide and low in height. In the construction of the cast-in-place concrete air duct, if the construction method of pouring the concrete air duct first and then pouring the roof concrete is used, the construction progress will be affected, and it is difficult to guarantee the construction period; It is very difficult, the formwork in the...

AI Technical Summary

Problems solved by technology

In the construction of the cast-in-place concrete air duct, if the construction method of pouring the concrete air duct first and then pouring the roof concrete is used, the construction progress will be affected, and it is difficult to guarantee the construction period; It is very difficult, the formwork in the air duct is not easy to remove, and it is difficult to repair when there are pouring quality defects at the bottom of the air duct roof (and the main structure floor)

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