Moveable trestle with stepping type self-walking truss structure for large-section tunnel invert construction

A technology of truss structure and mobile trestle, applied in tunnels, tunnel linings, pedestrian bridges, etc., can solve the problems of difficult movement, small distance, cumbersome structure, etc., and achieve the effect of good operation synchronization, high equipment efficiency, and reduced equipment weight.

Inactive Publication Date: 2017-04-26
CHINA RAILWAY NO 5 ENG GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a step-type self-propelled truss structure mobile trestle for large-section tunnel inverted arch construction, and solve the traditional crawler-type mobile trestle bridge for large-section tunnel inverted arch construction step-by-step self-truss structure

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  • Moveable trestle with stepping type self-walking truss structure for large-section tunnel invert construction
  • Moveable trestle with stepping type self-walking truss structure for large-section tunnel invert construction
  • Moveable trestle with stepping type self-walking truss structure for large-section tunnel invert construction

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[0040] The invention will be further introduced below in conjunction with the drawings and specific embodiments:

[0041] Such as Figure 1-11 As shown, a stepping self-propelled truss structure mobile trestle for large section tunnel invert construction, including approach bridge 1, drive wheel 2, hydraulic system 3, electrical system 4, main bridge body 5, stepping mechanism 6, electric hoist 7 The main axle body 5 is composed of three sections of front axle, middle axle and rear axle. The front axle, middle axle and rear axle are all connected by steel structure high-strength bolts; The actions of mechanism 6 are all controlled by the remote controller.

[0042] Further, the main body of the inverted arch trestle is the main force-bearing part of the entire trestle to realize its functions. The combined structure of box girder and truss is adopted for force analysis and optimization. The overall length of the main bridge is nearly 30 meters, in order to facilitate transportatio...

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Abstract

The invention discloses a moveable trestle with a stepping type self-walking truss structure for large-section tunnel invert construction. The moveable trestle comprises an approach bridge (1), a driving wheel (2), a hydraulic system (3), an electric system (4), a main bridge body (5), a stepping mechanism (6), an electric hoist (7) and a supporting shifting mechanism (8). The moveable trestle is characterized in that the main bridge body (5) is composed of a front bridge, a middle bridge and a rear bridge; the front bridge, the middle bridge and the rear bridge are connected in pairs through high-strength bolts with steel structures; and the action of the stepping mechanism (6) is controlled by a remote controller. The moveable trestle can solve the problems that the traditional crawler type structure is unsuitable for large-span (24 meters) tunnel invert construction, the moving distance each time is short (limited by the rail length), the structure is heavy, the movement is difficult, all the operations are manual operations performed by the workers and the operation for local sections is limited.

Description

technical field [0001] The invention relates to a mobile trestle, in particular to a stepping self-propelled truss structure mobile trestle for large-section tunnel inverted arch construction, belonging to the field of construction engineering. Background technique [0002] Inverted arch trestles are widely used in tunnel construction. Before the research of this project, they were basically some traditional simple steel structures that required external force dragging, and some construction companies were modernizing them to make them self-propelled. And other automation functions, but it is basically in the stage of exploration and research, and is gradually being put into use during construction. One of the more successful ones is China Railway No. 5 New and other units, but due to reasons such as price and construction coordination, they have not been widely promoted and used. According to the driving mode, the self-propelled inverted arch trestle can be divided into tw...

Claims

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Application Information

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IPC IPC(8): E21D11/10E01D15/10
CPCE21D11/102E01D15/10
Inventor 陈祚进张家放李智刚侯连军邹绍龙罗成卢静孙志举
Owner CHINA RAILWAY NO 5 ENG GRP
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