Tunnel arch frame prefabricated construction device and method

Abstract

The invention discloses a tunnel arch frame prefabricated construction device and method. The tunnel arch frame prefabricated construction device comprises a track arranged longitudinally along a tunnel and a trolley, wherein a pulley matched with the track is installed at the bottom of the trolley; the trolley is provided with a jacking device, and the jacking device includes a base for installing on the trolley; a jacking oil cylinder is fixedly arranged on the base, and the top of a piston rod of the jacking oil cylinder is connected with a supporting steel plate. According to the tunnel arch frame prefabricated construction device and method, the tunnel arch frame prefabricated construction device can cooperate with the installation of various arch frames with different cross-section shapes, and can adjust the jacking device of the trolley of the arch frame installation according to the sizes of the cross sections of the arch frames; the precise positioning of the arch frames can be realized, and the difficult problem of mechanized arch frame installation can be solved conveniently and quickly; and mechanized construction can be realized, the manual labor is reduced, the construction period is shortened, the construction speed is fast, fewer workers are needed on site, and a lot of costs are saved.

Description

technical field [0001] The invention relates to the technical field of underground engineering construction, in particular to a tunnel arch assembly type construction device and method. Background technique [0002] In recent years, my country's underground engineering has developed rapidly, not only in the growth of the number, but also in the rapid development and continuous breakthrough of technology. With the rapid development of the scale and speed of underground engineering construction, the installation speed and quality of steel arches as the main body of underground primary support are particularly important for saving man-hours. Manual installation. [0003] The traditional arch construction method mainly has the following disadvantages: ①The number of workers required is large, the labor intensity is high, and the efficiency is low. Most of the existing arch frames are connected by traditional flanges and bushings, and a large amount of manual labor is required ...

AI Technical Summary

Problems solved by technology

[0003] The traditional arch construction method mainly has the following disadvantages: ①The number of workers required is large, the labor intensity is high, and the efficiency is low

Most of the existing arch frames are connected by traditional flanges and sleeves, and a large amount of manual work is required for on-site installation; ②Poor safety

During the installation process, a large number of workers are required to carry out long-term high-intensity construction work in the unsupported space on site, and safety is difficult to guarantee; ③ none of the existing arch frame connection methods can match the mechanized on-site construction of the arch frame

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