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Large-span telescopic type moving trestle

A mobile trestle and telescopic technology, applied in bridges, bridge forms, pedestrian bridges and other directions, can solve the problems of affecting the construction progress of the inverted arch area, tunnel construction safety steps, etc., and achieve the effects of compact structure, convenient walking and low manufacturing cost.

Pending Publication Date: 2020-02-18
HAN JIANG HEAVY IND CO LTD 11TH BUREAU GRP CRCC +3
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Problems solved by technology

[0003] The purpose of the present invention is to provide a large-span telescopic mobile trestle for the above shortcomings, which can solve the technical problems affecting the construction progress of the inverted arch area and the safe step distance of tunnel construction, realize the flow operation and parallel operation of the interval process, and effectively improve the construction efficiency of the tunnel. construction efficiency

Method used

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  • Large-span telescopic type moving trestle
  • Large-span telescopic type moving trestle
  • Large-span telescopic type moving trestle

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with accompanying drawing.

[0031] Such as figure 1 As shown, a large-span telescopic mobile trestle in the present invention includes a main bridge assembly 1, a secondary bridge assembly 2, a formwork assembly 3, a hydraulic system 4 and an electrical system 5. Among them, the main bridge assembly 1 is the main bearing structure for the passage of various vehicles. The secondary bridge assembly 2 is mainly a load-bearing structure for transport vehicles. Formwork assembly 3 is mainly used for invert lining and invert filling. The hydraulic system 4 adopts an independent unit design, which is composed of auxiliary outrigger hydraulic system, front outrigger hydraulic system, middle outrigger hydraulic system and rear outrigger hydraulic system. It is the main execution system to realize the movement of the whole machine and components. Modular design, each executive system includes a hydraulic pum...

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Abstract

The invention discloses a large-span telescopic type moving trestle, and belongs to the technical field of tunnel construction. The related technical problems of the tunnel construction safety stepping distance, inverted arch construction related procedure layout and the like can be solved. The trestle is mainly characterized by comprising a main trestle assembly, a secondary trestle assembly, a template assembly and a hydraulic system. The template assembly is an inverted arch construction template assembly, and a telescopic mechanism capable of enabling the secondary trestle assembly to telescopically move relative to the main trestle assembly is arranged between the main trestle assembly and the secondary trestle assembly. The trestle has the advantages of being compact in structure, convenient to walk, low in manufacturing cost and the like. The trestle is mainly used for ensuring normal passage of various vehicles, reducing inverted arch construction procedure conflict and effectively quickening the tunnel construction proceed.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction, and relates to tunnel construction mechanized supporting equipment in a tunnel mechanized construction system, in particular to a large-span telescopic mobile trestle. Background technique [0002] As the mechanized rapid construction technology system has not been completed in tunnel construction, many key technical problems have not yet been broken through, resulting in great differences in construction progress and many hidden dangers of accidents. A comprehensive analysis of the main process of tunnel construction (tunnel excavation, initial support, inverted arch construction, waterproof board laying and hanging, secondary lining concrete pouring, and trench cable channel construction, etc.) found that the construction process at the mobile trestle took a long time, and some processes The inability to synchronize construction has seriously restricted the progress of tunnel constr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10E01D15/10
CPCE21D11/10E21D11/102E01D15/10
Inventor 郑心铭王鹏张旭东唐达昆王元清孔凡华李青郭吉祥张光明吕虎李勇
Owner HAN JIANG HEAVY IND CO LTD 11TH BUREAU GRP CRCC
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