Trestle type lower-opening full-cross-section synchronous construction equipment and construction method thereof

Abstract

The invention discloses trestle type lower-opening full-cross-section synchronous construction equipment and a construction method thereof, and belongs to the technical field of tunnel construction and underground engineering. The equipment comprises a self-propelled trestle, wherein a full-cross-section template trolley is arranged on the self-propelled trestle; an integral framework of the full-cross-section template trolley is in a reverse U shape; a top die is arranged above the full-cross-section template trolley; the two ends of the top die are hinged to side dies; the side dies are connected with the full-cross-section template trolley through side oil cylinders; a bottom die is hinged to the lower end of each of the two side dies, and hinging positions are connected through a bottom oil cylinder; the two bottom dies are mutually connected through a bottom connecting rod; the top die, the side dies and the bottom dies jointly form a full-cross-section template of a tunnel; ascending and descending posts controlled to vertically ascend or descend by ascending and descending oil cylinders are arranged at the two sides of the full-cross-section template trolley; and the lower end of each ascending and descending post is provided with a moving wheel. The trestle type lower-opening full-cross-section synchronous construction equipment and the construction method have the advantages that the simultaneous pouring construction of the full cross section of the tunnel can be realized; in the construction process, the tunnel excavation is not influenced; the passing of construction equipment vehicles in the tunnel is not influenced; and the construction efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction and underground engineering, in particular to a trestle-type lower opening full-section synchronous construction equipment and a construction method thereof. Background technique [0002] With the rapid development of my country's infrastructure construction, the requirements for tunnel construction are getting higher and higher, and the requirements for the rapid ringing of full-section formwork and the section arc are getting higher and higher in the construction of some tunnels. At present, the promotion of self-propelled trestles has combined the pouring of the inverted arches under the trestles relatively well, and the trestles can carry the rapid movement, positioning and reinforcement of the integral inverted arch formwork. However, due to the need for the layout of the waterproof board and the construction area arrangement of the secondary lining reinforcement, as well as the s...

AI Technical Summary

Problems solved by technology

In some tunnels without filling layer design, the traditional waterproof board, steel bar installation trolley and full-section formwork trolley have no track placement position, the overall positioning and movement of the trolley is not fast and convenient, and it is difficult to position and reinforce the formwork

Needle beam trolleys are also used in some small tunnels, but the lining cannot meet the requirements of excavation and opening to traffic

Due to the above factors, the construction period of the guide column is lengthened, the construction efficiency is low, and various costs are large.

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