Modular dismantling construction method of shield machine in confined and narrow space

Abstract

The invention discloses a modular disintegration construction method in a confined and narrow space of a shield machine. The components of the shield machine are sequentially removed, placed on a tunnel transport vehicle, and then transported to the shield tunnel by the tunnel transport vehicle. At the wellhead, it is finally hoisted out by a crane outside the wellhead under the shield. The invention is applicable to the working condition that there is no hoisting hole reserved at the receiving end of the shield tunnel and the conditions for hoisting the shield machine are not available. By placing the disassembled components on the tunnel transport vehicle, the tunnel transport vehicle carries the shield The various components of the tunneling machine go back and forth and go back to the lower wellhead of the shield machine to be hoisted out, which solves the technical and safety problems of the shield machine dismantling and constructing in a confined and narrow space, and realizes the shield machine entering and exiting at the same tunnel entrance . The designed auxiliary anti-moment guide beam movable door crane assists the dismantling of the shield machine, and the hoist on it can move within the range of the transverse and longitudinal beams, and the lifting range is wide, which can meet the lifting and transportation of the components of the shield machine.

Description

technical field [0001] The invention relates to the field of shield tunneling construction, in particular to a modular dismantling construction method in a confined space of a shield tunneling machine. Background technique [0002] With the development of the city, the subway has become one of the main ways to relieve traffic pressure, and the construction of the urban subway is also fully rolled out. As a modern underground engineering construction machine, the shield machine plays an irreplaceable role in subway construction. As an indispensable part of shield tunneling construction, the dismantling operation of the shield tunneling machine after the completion of the tunneling task has the characteristics of strong professionalism, high risk, and many limiting factors. [0003] Due to the large volume and self-weight of the shield machine, the conventional method of dismantling the shield machine at home and abroad is to enter the reserved wellhead of the station, disass...

AI Technical Summary

Problems solved by technology

However, with the large-scale development of urban infrastructure, limited by many conditions such as large-scale municipal pipelines, commercial compensation, and traffic guidance reforms, it is unbearable in terms of construction period and comprehensive cost to set up open-cut stations or shield tunneling wells in some special places. After the completion of the excavation task, since there is no reserved wellhead at the receiving end of the shield tunnel, there is no condition for the shield machine to be hoisted out, and the shield machine does not have the conditions for lifting and dismantling after the completion of the excavation task

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