Shield tunnel prefabricated mid-partition mounting device

Abstract

The invention discloses a shield tunnel prefabricated mid-partition mounting device. The shield tunnel prefabricated mid-partition mounting device comprises a main frame assembly, a mounting trolley assembly and a grabbing assembly, wherein one side of a mounting seat in the grabbing assembly is placed on a cylinder rod of a transverse adjusting oil cylinder; a connecting hinged support is arranged in the middle of the other side of the mounting seat; fine-adjustment hinged supports are separately arranged on the mounting seat and on two sides of the connecting hinged support; a rotary hydraulic motor mounting seat is fixedly hinged to the connecting hinged support; a rotary hydraulic motor is placed on the rotary hydraulic motor mounting seat; fine-adjustment oil cylinders are separately mounted on the fine-adjustment hinged supports on two sides of the connecting hinged support in a hinged manner; and the other ends of the fine-adjustment oil cylinders are fixedly hinged to the fine-adjustment hinged supports on two sides of the rotary hydraulic motor mounting seat. Various properties of a mechanical structure of the shield tunnel prefabricated mid-partition mounting device meet requirements of a construction site; and compared with a traditional construction mode, the shield tunnel prefabricated mid-partition mounting device has the advantages that the construction period can be greatly shortened, the construction stability is good, controllability of a construction process is high, the construction quality of a prefabricated mid-partition is improved effectively, and requirements on construction operation skills of workers are low.

Description

Technical field[0001]The present invention belongs to the technical field of mounting special machinery equipment in the tunnel, and in particular, the present invention relates to a shield tunnel prefabricated wall mounting device belonging to a shield tunnel construction equipment, particularly suitable for shield tunnel construction of large diameter.Background technique[0002]In the large-diameter shield tunnel, it is set up a large-scale double-line operation in a large diameter shield tunnel, which is a major technological innovation in the rail transit. However, in a relatively narrow tunnel space, it is a major problem for construction. In combination with the actual engineering, through simulation calculation and analysis, finding the construction crux and key points, the corresponding method of work is developed, and the prefabricated interlaced wall mounting device is developed, and the prefabrication wall in the narrow tunnel space is realized. Assembly, the quality of co...

AI Technical Summary

Problems solved by technology

This design has the following problems: First, the height of this type of prefabricated partition wall is relatively large, generally above 6m, and the thickness is generally not more than 500mm. It is very inconvenient to use the cast-in-place method to construct the vertical formwork, and the construction speed is also relatively slow. Second, the quality of concrete pouring at the junction of the prefabricated partition wall and the tunnel segment is difficult to guarantee; the third is that the prefabricated partition wall and the tunnel segment are fixed by planting bars, and the prefabricated partition wall limits the vertical deformation of the tunnel segment structure , changing the design force and deformation mode of the tunnel segment structure; Fourth, along the axis direction of the prefabricated partition wall structure of the tunnel, the sections of the prefabricated partition wall are longer, usually about 20m, and the width of the tunnel segment is between 1~ The existence of the prefabricated partition wall in this way increases the connection stiffness between adjacent tunnel segments, which violates the original design intention of the flexible connection between tunnel segments, and affects the seismic performance of the prefabricated partition wall structure of the tunnel. unfavorable

The current special installation equipment for the above-mentioned partition wall structure generally has the defects of complex structural design and relatively poor operation controllability, and requires relatively high construction operation skills for workers

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