Secondary lining trolley structure in standard section of tunnel and splicing method

Abstract

The invention discloses a secondary lining trolley structure in a standard section of a tunnel and a splicing method. The secondary lining trolley structure comprises a lining trolley which comprisesa plurality of portal frames, two lower longitudinal beams and a walking device arranged below the lower longitudinal beams; a track device is arranged below the walking device; a template device is arranged out of the lining trolley; a plurality of hanging devices and embedded parts are arranged on the outer side of the template device. The invention also provides a splicing method of the secondary lining trolley structure. Primary mounting work of the secondary lining trolley is performed by means of chain blocks. According to the secondary lining trolley structure disclosed by the invention, the plurality of hanging devices for assembling the secondary lining trolley and a plurality of embedded parts for fixing the hanging devices are arranged on the outer side of the template device, the chain blocks are hanged on the hanging devices, and the primary mounting work of the secondary lining trolley is performed by means of the chain blocks, so that use of large mechanical equipment isreduced to a great extent, the secondary lining trolley structure is simple to operate, the steps and workload are reduced, and normal construction of a tunnel is not affected, and the work efficiency is increased.

Description

technical field [0001] The invention relates to the technical field of tunnel construction equipment, in particular to a structure and an assembly method of a two-lined trolley in a standard section of a tunnel. Background technique [0002] With the development of tunnel construction projects, the lining construction of the second lining trolley has been very mature, and its construction technology is simple, so it has been widely used in tunnel construction. The assembly of the second lining trolley is an indispensable link before the construction of the second lining. The assembly of the second lining trolley is divided into the assembly of the second lining trolley outside the hole and the assembly of the second lining trolley inside the hole. The assembly of the second lining trolley outside the cave mainly adopts the method of crane hoisting and manual assembly, which is relatively simple. The second lining trolley in the tunnel mainly adopts the traditional method of...

AI Technical Summary

Problems solved by technology

[0003] In order to assemble the second lining trolley in the tunnel, the tunnel excavation section is expanded, which actually adds a new process, resulting in an increase in construction costs

When the tunnel excavation section is enlarged and the surrounding rock geological conditions in the construction area are poor, there is a very large safety risk

Moreover, in the subsequent process of assembling the second lining trolley, the cooperation of large machinery such as cranes, excavators, loaders, etc. is required, the process is cumbersome and the cost is high

The passage space of the tunnel is limited, and there are many large-scale machinery involved in the assembly of the second lining trolley, which causes road blockage in the tunnel and seriously affects the normal construction of the tunnel, resulting in delayed work.

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