Settlement rectifying and integral lifting method for ballastless track using series pipeline grouting technology

A technology of ballastless track and grouting, which is applied in the direction of track, track laying, track maintenance, etc. It can solve the problems of good and bad lifting effect, large deviation of grouting parameters, and poor stability, so as to achieve the lifting effect Good, simple and fast construction, high lifting accuracy

Pending Publication Date: 2020-01-24
武汉比邻工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the fact that each grouting hole still adopts a relatively independent grouting method in this patented technology, the grouting parameters are prone to large deviations, resulting in the final lifting effect that is easy to be good and bad, and the stability is poor

Method used

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  • Settlement rectifying and integral lifting method for ballastless track using series pipeline grouting technology
  • Settlement rectifying and integral lifting method for ballastless track using series pipeline grouting technology
  • Settlement rectifying and integral lifting method for ballastless track using series pipeline grouting technology

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Experimental program
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Effect test

Embodiment 1

[0041] Such as Figure 1-4 As shown, the overall lifting method for ballastless track settlement correction using series pipeline grouting technology provided in this embodiment includes the following steps:

[0042] S1. Mark one water-stop curtain hole 2 along the rail direction on the outer side of the two rails 1, and mark 2 grouting holes 3 along the rail 1 direction on the inner side of the two rails 1. In the water-stop curtain hole 2 Mark a grouting hole 3 along the direction of the track 1 between the track 1 on the same side; drill a hole at the mark of the water-stop curtain hole 2 and the grouting hole 3 and bury the steel flower tube 4 vertically; the water-stop curtain The hole diameter of hole 2 and grouting hole 3 is 50mm, the hole distance is 800mm, and the hole depth is 2000mm. The actual drilled hole depth is 0.1m deeper than the designed hole. After the drilled hole meets the above-mentioned parameters, continue to drill steadily for 2 minutes. The purpose of ...

Embodiment 2

[0058] Such as Figure 5 As shown, the ballastless track settlement rectification and overall uplift method provided by this embodiment using the grouting technology in series uses a slightly different grouting network compared to Embodiment 1, specifically: 4 grouting holes 3 The corresponding steel flower tube 4 is connected with a steel tube 6 to form a complete series grouting network, and the end of the steel tube 6 is provided with an overflow valve 9.

[0059] In the tandem grouting network of this embodiment, the steel flower pipes corresponding to the four grouting holes are connected by the same steel pipe to form a complete steel pipe. In order to meet the requirements of simultaneous grouting of all steel flower pipes at the same pressure, all steel flower pipes should be closed first. On the upper valve, the second grouting pump injects grout into the steel pipe, and the grout flows out from the overflow valve along the steel pipe; when the grouting pressure of the se...

Embodiment 3

[0061] Such as Image 6 As shown, the ballastless track settlement rectification and overall lifting method using the serial pipeline grouting technology provided by this embodiment is different from the embodiment 2 as follows: There are a total of 3 marks on the inner side of the two tracks 1 along the direction of the track 1. Road grouting hole 3. The structure of the tandem grouting network in this embodiment is still similar to that of Embodiment 2. That is, the steel pipes 4 corresponding to the five grouting holes 3 are connected with the same steel pipe 6 to form a complete tandem grouting network. There is an overflow valve 9 at the end.

[0062] In the tandem grouting network of this embodiment, the steel flower pipes corresponding to the four grouting holes are connected by the same steel pipe to form a complete steel pipe. In order to meet the requirements of simultaneous grouting of all steel flower pipes at the same pressure, all steel flower pipes should be closed...

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Abstract

The invention discloses a settlement rectifying and integral lifting method for a ballastless track using a series pipeline grouting technology. A series grouting network is used to connect all grouting holes in the track to be lifted in series, and a unique grouting method is adopted to keep the grouting parameters of each grouting hole consistent, so the integral synchronous lifting of the trackis ensured to the greatest extent, the lifting precision is higher, and the lifting effect is better. Moreover, the construction is relatively simple. One skylight point can complete all the construction procedures, and the normal operation of a train is not affected at all.

Description

Technical field [0001] The invention belongs to the technical field of repairing high-speed railway ballastless track structures, and particularly relates to a method for overall lifting of ballastless track settlement correction using serial pipeline grouting technology. Background technique [0002] Ballastless track is a form of track structure composed of concrete or asphalt mortar instead of the bulk ballast bed. With the rapid development of my country's railways, the application of ballastless tracks has become increasingly widespread. Due to the uneven settlement after the construction of the foundation, differential settlement occurs at the junction of the roadbed and the culvert structure, resulting in damage to the track structure and function, which reduces the stability, smoothness, and durability of the track, and the ballastless track has offset and settlement. Not only directly affects the safety of the track structure, but also the violent jump of the train seri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B29/04
CPCE01B29/04E01B2203/10E01B2204/06E01B2204/09
Inventor 许国华贺军吴娟杨恒华杨峰熊传晟陆华文张长攀吴刚胡明明杜青
Owner 武汉比邻工程技术有限公司
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