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Underground line monolithic roadbed expansion joint form reinforcing device and construction method thereof

A technology of reinforcement device and integral track bed, applied in the directions of roads, tracks, ballast layers, etc., can solve the problems of affecting the appearance quality, prone to floating, and the bending of expansion joints is not straight, so as to achieve a simple and feasible combined structure, easy installation and The effect of dismantling and improving the appearance quality

Pending Publication Date: 2018-06-01
CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, according to the design requirements of the overall ballast bed of the underground line, expansion joint formwork is used. During the concrete pouring process of the ballast bed, the expansion joint formwork is easily deflected by the impact of concrete, and is prone to floating phenomenon
Under the different stress conditions of the concrete on both sides, the expansion joints are bent and not straight, which seriously affects the appearance quality
Later rectification and cleaning will increase the cost, and there are no better fixed methods and measures at present

Method used

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  • Underground line monolithic roadbed expansion joint form reinforcing device and construction method thereof
  • Underground line monolithic roadbed expansion joint form reinforcing device and construction method thereof

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Experimental program
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Effect test

Embodiment

[0027] The construction method of the expansion joint formwork reinforcement device is as follows:

[0028] First, determine the size of the angle iron according to the design drawings for cutting, and drill bolt holes at the corresponding positions.

[0029] Then, after the expansion joint flat steel welding is completed, the expansion joint formwork is placed at the construction position, and the angle iron structures are respectively placed and fixed on both sides of the expansion joint formwork.

[0030] Next, fix the angle iron structure on one side on the rail in the middle of the two sleepers with the rail fixing pressure plate and the rail fixing bolts, and adjust the position of the expansion joint template. After the position of the expansion joint template is fixed, fix the angle iron on the other side to the rail with the rail fixing plate and rail fixing bolts.

[0031] Finally, use the terminal fixing steel plate and the connecting terminal fixing bolt to fix th...

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Abstract

The invention relates to the technical field of engineering technical equipment and engineering approaches, in particular to an underground line monolithic roadbed expansion joint form reinforcing device and a construction method thereof. The reinforcing device comprises at least two angle iron structures which are in parallel arrangement and connected fixedly; an expansion joint form is arrangedbetween every two adjacent angle iron structures; connecting ends arranged below two ends of each angle iron structure are fixedly connected with the angle iron structure; the reinforcing device is arranged between sleepers and fixedly connected with steel rails through fixing structures. Compared with the prior art, the reinforcing device has the advantages that the reinforcing device which has combination structure is simple and feasible and is easy to mount and demount, has effect of enhancing control to the expansion joint forms, reducing deformation of the expansion joint forms, and improving appearance quality of expansion joints, and further is adaptable to ranges of various roadbeds, is easy and convenient, and enhances control to height of the connecting ends.

Description

[technical field] [0001] The invention relates to the technical field of engineering technical equipment and engineering methods, in particular to a reinforcing device and a construction method for an expansion joint formwork of an integral ballast bed of an underground line. [Background technique] [0002] At present, the overall ballast bed of the underground line adopts expansion joint formwork according to the design requirements. During the concrete pouring process of the ballast bed, the expansion joint formwork is easily deflected by the impact of concrete, and is prone to floating phenomenon. Under the different stress conditions of the concrete on both sides, the expansion joints are bent and not straight, which seriously affects the appearance quality. The late rectification and cleaning will increase the cost, and there are no better fixed methods and measures at present. Therefore, a new type of reinforcement device and construction method for the expansion join...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B29/00E01B1/00
CPCE01B1/00E01B29/00
Inventor 孟凡波范宝明王旭森刘习生钱琨
Owner CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP CO LTD
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