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Construction device for in-situ maintenance or extension of highway tunnel

A technology for construction equipment and road tunnels, applied in tunnels, mining equipment, earthwork drilling and mining, etc., can solve traffic impact and other problems, achieve the effect of reducing traffic pressure, reducing adverse effects, and increasing construction difficulty

Inactive Publication Date: 2013-12-25
FUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a construction device for in-situ maintenance or expansion of highway tunnels, which helps to solve the problem of traffic impact caused by closed traffic restrictions in existing engineering construction

Method used

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  • Construction device for in-situ maintenance or extension of highway tunnel
  • Construction device for in-situ maintenance or extension of highway tunnel
  • Construction device for in-situ maintenance or extension of highway tunnel

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Embodiment Construction

[0018] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.

[0019] refer to Figure 1 to Figure 4 , the invention relates to a construction device for in-situ maintenance or expansion of a highway tunnel, comprising a steel shield for in-situ maintenance or in-situ expansion of the tunnel, the steel shield comprising a portal steel frame, a skin steel plate and The chute is composed together, and the geometric size of the steel shield should be comprehensively determined after optimization comparison and selection based on the clearance in the existing tunnel, the clearance required for the passage of traffic vehicles, and the clearance required for the operation of construction machinery.

[0020] The steel beams and steel columns of the above-mentioned portal steel frame are H-shaped steel; and the beam-column joints ...

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Abstract

The invention relates to a construction device for in-situ maintenance or extension of a highway tunnel. The construction device comprises a steel protective cover for the in-situ maintenance or the extension of the tunnel. The construction device is characterized in that the steel protective cover is commonly composed of portal frames, a skin covered steel plate and a slide groove; a plurality of the portal frames are arrayed along the longitudinal direction to form a framework of the steel protective cover; the skin covered steel plate is connected with an outer side flange plate of each frame by a skin covered steel plate bolt so as to form a closed inner space; traffic vehicles can pass in the closed space and construction machines can walk above the steel protective cover to carry out various types of maintenance work on tunnel linings; the slide groove is fixedly arranged on a previous road surface by an anchor bolt and each portal frame is connected into the slide groove by the bolt; and the slide groove provides a support pressure to the steel protective cover and also provides guiding orientation on the movement of the steel protective cover. According to the construction device for the in-situ maintenance or the extension of the highway tunnel, a traffic pressure caused by closed traffic controls is greatly relieved, and the adverse effects to public benefits and social benefits, caused by maintenance or extension engineering, are reduced greatly.

Description

technical field [0001] The invention relates to an in-situ maintenance or expansion project of a road tunnel, in particular to a construction device for the in-situ maintenance or expansion of a road tunnel. Background technique [0002] With the rapid development of the national economy and the rapid growth of road traffic volume, as people's service requirements for fast / comfortable services continue to increase, it is increasingly urgent to further improve and improve the road traffic environment. Tunnel engineering is often the bottleneck of the entire highway traffic engineering. In recent years, there have been many cases of large-scale inspection and maintenance of existing tunnels, and cases of widening and expansion of existing tunnels have also occurred from time to time. [0003] For the maintenance or expansion of existing tunnels, the method of temporarily closing single-lane traffic is currently adopted in China to provide enough space and time for construction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D19/00E21D9/01
Inventor 关振长邓涛黄明
Owner FUZHOU UNIV
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