Construction method for continuous type construction auxiliary girder in jacking of railway box culvert and device for implementing construction method

A construction method and continuous technology, applied in the direction of road bottom, buildings, etc., can solve the problems of large impact of railway operation, long operation cycle, complicated procedures, etc., and achieve the effect of low input construction cost, high construction efficiency and reasonable design.

Inactive Publication Date: 2016-10-12
长沙楚泰建筑劳务有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

But there are also the following problems: the span combination is less selective and inflexible, and there are only the above four stereotyped spans; see figure 1 , during the jacking construction process of porous box culverts one by one, after the first overhead is completed, the first hole box culvert needs to be jacked, and then both sides and the top need to be backfilled, and the D-shaped beam overhead system is removed, restored and maintained The railway line reaches the standard, and then the position of the longitudinal beam is changed to be elevated again, and then the next hole

Method used

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  • Construction method for continuous type construction auxiliary girder in jacking of railway box culvert and device for implementing construction method
  • Construction method for continuous type construction auxiliary girder in jacking of railway box culvert and device for implementing construction method
  • Construction method for continuous type construction auxiliary girder in jacking of railway box culvert and device for implementing construction method

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with accompanying drawings and specific cases.

[0044] see figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 with Figure 12 , the construction method of the railway box culvert jacking continuous type construction convenience beam provided by the invention, comprises the following steps:

[0045] Step 1. Build the continuous construction beam foundation and excavate the prefabricated pit; box culvert prefabrication: prefabricate the box culvert in the prefabricated pit, and the box culvert is a separate box culvert. In this case, there are 4 box culvert segments, numbered 1 in sequence No. 4 box culvert segment.....4 box culvert segment has a net span of 10+11.5+11.5+7 meters, and the span of the box culvert segment is within the allowable range of the maximum span of the continuous construction beam Inside;

[0046] Step 2,

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Abstract

The invention discloses a construction method and device for jacking continuous construction beams for railway box culverts. Excavating and pouring continuous construction beams excavate hole pile foundations, excavating prefabricated pits; prefabricating box culverts; elevating existing railways and Reinforcement, that is, to erect crossbeams first, and then erect multi-section longitudinal beams connected together on both sides of the railway to form a longitudinal beam system. The longitudinal beam system is supported on On the ground, the longitudinal beam lifts and fixes the beam and the railway rail, and the longitudinal beam is bolted with high-strength bolt groups; the prefabricated box culvert is jacked, and the box culvert section is placed on the top of the box culvert section every time it is jacked. Set up temporary piers on the side with temporary excavated pile piers, and remove the temporary excavated pile piers on the side of the box culvert section, and carry out the jacking of the next box culvert section until all box culvert sections Jacking up to the designed position; backfill the top of the separated box culvert and goafs at both ends, remove the convenience beams and temporary buttresses, and restore the line.

Description

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Claims

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Application Information

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Owner 长沙楚泰建筑劳务有限公司
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