Shield machine adapting to multi-standard segments

Abstract

The invention discloses a shield tunneling machine suitable for duct pieces of multiple specifications. The shield tunneling machine comprises a cutter head, a front shield, a middle shield and a tail shield which are sequentially arranged from front to back. A pushing oil cylinder is arranged on the inner side of the middle shield, the front end of the pushing oil cylinder is connected with the front shield, the tail shield comprises a tail shield body, a reinforcing ring is arranged on the inner side of the rear portion of the tail shield body, a supplementary reinforcing ring is arranged on the inner side of the reinforcing ring, a slurry stop plate is arranged at the rear end of the tail shield body and connected with the tail shield body in series, a metal supporting ring is arranged on the inner side of the tail shield body, a tail brush supporting ring is arranged on the inner side of the metal supporting ring, and a shield tail brush is arranged on the tail brush supporting ring. By the adoption of the shield tunneling machine suitable for the duct pieces of the multiple specifications, on the basis that an original shield tunneling main machine structure is not changed, the shield tunneling machine main machine tail shield is simply transformed, the tunnel supporting process is changed, a process and method for a shield tunneling main machine to be suitable for another small-diameter duct piece shield tunnel construction are provided, the transformation scheme is simple, operation is easy and convenient, and the shield tunneling machine is economical and practical.

Description

technical field [0001] The invention belongs to the technical field of excavation and construction of a tunnel shield machine, and specifically relates to a shield machine that adapts to another small shield machine by simply modifying the tail shield and changing the tunnel support process without changing the structure of the original shield machine. Technology and method of diameter segment shield tunnel construction. Background technique [0002] At present, subways are being constructed in many cities in China, and among the construction methods of subway tunnels, most of them adopt the shield tunneling method. In recent years, with the increasing number of shield tunneling projects, there are more and more tunnel shield segment diameter specifications. However, the same shield equipment can only be used for the construction of tunnels with one diameter segment. If the shield equipment is constructed in a city with different segment specifications, a large-scale transf...

AI Technical Summary

Problems solved by technology

According to the transformation method of conventional shield tunneling, it is necessary to remake the shield cutter head, front, middle and tail shields to meet the construction requirements of φ6600-sized segment tunnels. This will increase the cost of equipment transformation and the risk of transportation of large structural parts. Disadvantages such as extension of renovation period

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