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Self-propelled tunnel ultra-long inverted arch movable template steel box girder trestle

A mobile formwork and self-propelled technology, which is applied in tunnels, tunnel linings, pedestrian bridges, etc., can solve the problems of low walking efficiency of the main bridge, tilted trestle bridge, and large construction span, and achieves improved walking efficiency, easy work, and stable structure good sex effect

Pending Publication Date: 2017-09-08
CHINA RAILWAY ERJU 4TH ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the problem that in the prior art, during the trestle moving process, it is necessary to repeatedly operate the supporting chassis and track movement, and then repeatedly operate the main bridge to move, so that the moving efficiency of the main bridge is very low. The walking driving device of the trestle is set on the inverted arch concrete pouring surface at the rear. When the concrete pouring area in the rear and front is long and the length of the trestle is lengthened, there is a problem that a large counterweight needs to be configured to prevent the trestle from tipping over. A self-propelled Tunnel ultra-long inverted arch mobile formwork steel box girder trestle, the trestle has high walking efficiency, and the construction span is large, and no warping will occur

Method used

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  • Self-propelled tunnel ultra-long inverted arch movable template steel box girder trestle
  • Self-propelled tunnel ultra-long inverted arch movable template steel box girder trestle
  • Self-propelled tunnel ultra-long inverted arch movable template steel box girder trestle

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Embodiment 1

[0035] This embodiment is used in the occasion where the concrete construction area needs to be filled across the inverted arch during tunnel construction.

[0036] Such as figure 1 and figure 2 As shown, a self-propelled tunnel ultra-long inverted arch mobile formwork steel box girder trestle includes a front approach bridge 1, a rear approach bridge 2 and a main bridge 3, and also includes a walking device and a utility for moving the trestle under the main bridge 3. As a supporting device for bearing the working weight of the trestle bridge, the walking device includes a traveling drive device arranged in front of the main bridge 3 and a walking driven device arranged behind the main bridge 3, and the supporting device is arranged at the front and rear ends of the main bridge 3 , the running gear and the supporting gear are directly installed on the main bridge 3 . The front approach bridge 1 is used to overlap to form a transition between the excavation front and the b...

Embodiment 2

[0044] This embodiment is used in the occasion where the concrete construction area needs to be filled across the inverted arch during tunnel construction.

[0045] Such as image 3 and Figure 4 As shown, a self-propelled tunnel ultra-long inverted arch mobile formwork steel box girder trestle includes a front approach bridge 1, a rear approach bridge 2 and a main bridge 3, and also includes a walking device and a utility for moving the trestle under the main bridge 3. As a supporting device for bearing the working weight of the trestle bridge, the walking device includes a traveling drive device arranged in front of the main bridge 3 and a walking driven device arranged behind the main bridge 3, and the supporting device is arranged at the front and rear ends of the main bridge 3 , the running gear and the supporting gear are directly installed on the main bridge 3 . The front approach bridge 1 is used to overlap to form a transition between the excavation front and the br...

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Abstract

The invention discloses a tunnel construction device and concretely relates to a self-propelled tunnel ultra-long inverted arch movable template steel box girder trestle comprising a front approach bridge, a back approach bridge and a main bridge and further comprising a walking device arranged under the main bridge and moving the trestle and a supporting device bearing trestle work weight. The walking device comprises a walking driving device arranged in front of the main bridge and a walking driven device arranged behind the main axle; the supporting device is arranged on the front and back ends of the main bridge; and the walking device and the supporting device are directly mounted on the main bridge. A problem of poor walking efficiency due to repeated operations to a bottom rack and track movements and repeated operation to the main bridge is overcome and a problem of trestle cocking and overturning upon great spanning of the front approach bridge can be solved; the self-propelled tunnel ultra-long inverted arch movable template steel box girder trestle has great walking efficiency, great spanning and cannot cock and overturn.

Description

technical field [0001] The invention relates to a tunnel construction device, in particular to a self-propelled tunnel ultra-long inverted arch mobile formwork steel box girder trestle. Background technique [0002] During tunnel construction, when the front of the tunnel is excavated, the stones produced need to be transported out through the rear, followed by construction and filling with concrete. During the construction of the inverted arch to fill the concrete, the passage of the ballasting vehicle is blocked. At this time, it is necessary to use the trestle bridge to cross the inverted arch to fill the concrete construction area, so that the ballasting vehicle can pass through the trestle bridge, and at the same time, the engineers are working under the trestle bridge. [0003] At present, there are many types of trestle bridges used in tunnel construction. The relatively simple trestle bridge is a structure made of I-beam splicing. The arch formwork is separated, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10E01D15/10
CPCE21D11/102E01D15/10
Inventor 谢玉军杨洪平刘小波唐浩然戴煜洲靳连杰金洲谭宗翰吕光辉
Owner CHINA RAILWAY ERJU 4TH ENG
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