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

Abstract

The invention discloses trestle type top opening full cross-section synchronous construction equipment and a construction method thereof and belongs to the technical field of tunnel construction and underground construction. A full cross-section formwork trolley is arranged on a self-propelled trestle. An invert formwork is hoisted at the lower end of the full cross-section formwork trolley. A topformwork is arranged above the invert formwork. The invert formwork is located below the self-propelled trestle. The top formwork is composed of a first top formwork body and a second top formwork body. The lower end of the first top formwork body and the lower end of the second top formwork body are hinged to the two ends of the invert formwork correspondingly, and the first top formwork body and the second top formwork body are connected with side cylinders at the hinged positions. The inner side face of the first top formwork body and the inner side face of the second top formwork body arein supporting connection with the full cross-section formwork trolley through detachable connecting rods. The two sides of the full cross-section formwork trolley are provided with lifting columns controlled to rise and drop through lifting cylinders. The lower ends of the lifting columns are connected with the invert formwork. The trestle type top opening full cross-section synchronous construction equipment can realize full cross-section one-time synchronous pouring construction of a tunnel without affecting excavation of the tunnel during construction and passing of construction equipmentvehicles in the tunnel, 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 upper 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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