Diameter expansion device for tunnel segment demolition

Abstract

The invention discloses a diameter expansion device for tunnel segment demolition. The device comprises a supporting steel structure and a sliding rail, wherein a motor vehicle is arranged at the lower end of the supporting steel structure, and wheels are installed at the lower end of the motor vehicle; the wheels are connected with sliding slots of movable tracks in a rolling way, and the movabletracks are fixedly installed on the surface of the lower end of a tunnel hole body by means of bolts; a battery compartment is fixedly installed in the front side of the supporting steel structure, and electric telescopic rods are fixedly installed on the outer surface of the battery compartment; a rotating shaft is rotatably connected with the middle of the rear end of the supporting steel structure; the ends, far away from the rotating shaft, of mechanical telescopic rods are respectively and fixedly provided with grinding blocks by means of support frames; the surface of the front end of the supporting steel structure is connected with a protective cover. After the diameter expansion device for the tunnel segment demolition is adopted, segments on the surface of the tunnel hole body can be conveniently removed and disassembled, the inner wall of the disassembled tunnel hole body is also conveniently ground, and the increment of the inner diameter of the tunnel hole body is facilitated; the diameter expansion device for the tunnel segment demolition is convenient to use.

Description

technical field [0001] The invention relates to the related technical field of tunnel segment removal, in particular to a diameter expanding device for tunnel segment removal. Background technique [0002] In recent years, municipal pipeline tunnels, rail transit tunnels and other types of tunnels have developed rapidly in recent years. So many various types of tunnel projects determine that we will gradually transition from the current period of large-scale construction and development of tunnel projects to the restoration of various types of tunnels. In the period of maintenance, reconstruction and expansion, general tunnel projects are relatively focused on new construction. For the maintenance of old tunnels or tunnel expansion due to increased traffic demand, the preparation and consideration are not sufficient. Due to the limitation of tunnel section space, the longitudinal and cross-sectional layout of the tunnel and the size of the construction equipment that can be ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a diameter expanding device for dismantling tunnel segments to solve the problem of general tunnel segment dismantling proposed in the above-mentioned background technology. The segment is manually cut and then disassembled. The work efficiency is low and the segment is damaged. The strength is relatively large, and it is inconvenient to polish the inner wall of the disassembled tunnel body, and it is inconvenient to increase the inner diameter of the tunnel body

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