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A non-excavation ballastless track mortar layer separation seam sealing method

A technology of ballastless track and non-excavation, which is applied in the direction of track, track laying, track maintenance, etc. It can solve the problems of low construction efficiency, subgrade disturbance, and heavy workload, so as to save construction cost, reduce construction intensity, and improve The effect of construction efficiency

Active Publication Date: 2019-06-04
中铁四院集团工程建设有限责任公司
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This construction method has a large workload, low construction efficiency, high cost, and it is easy to cause roadbed disturbance and damage the original roadbed structure.

Method used

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  • A non-excavation ballastless track mortar layer separation seam sealing method
  • A non-excavation ballastless track mortar layer separation seam sealing method
  • A non-excavation ballastless track mortar layer separation seam sealing method

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Embodiment Construction

[0015] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0016] This patent is a non-excavation type ballastless track mortar layer separation seam sealing treatment method, the specific construction method is described in detail as follows:

[0017] (1) Confirm the edge grouting area: Confirm the edge grouting area according to the grouting area of ​​the edge sealing, and the two ends of the grouting area of ​​the edge sealing are 100-200mm beyond the grouting area of ​​the edge.

[0018] (2) Hole layout: grouting holes are arranged on the closed layer of the track slab. The horizontal distance between the grouting holes and the edge of the track slab i...

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Abstract

The invention discloses a non-excavating type joint opening and joint sealing processing method for a mortar layer of a ballastless track. The non-excavating type joint opening and joint sealing processing method comprises the following steps of determining an edge sealing grouting region on a track plate closing layer according to a gap grouting region of the mortar layer; then forming grouting holes and pressure relief holes in the edge sealing grouting region; mounting a lining pipe in each grouting hole; and sequentially connecting each grouting hole through utilizing grout injection apparatus to complete grouting, so that a sealing heavy curtain located on the side of the mortar layer is formed. According to the non-excavating type joint opening and joint sealing processing method disclosed by the invention, the grouting holes are formed in the track plate closing layer, so that under the premise that the track plate closing layer is not removed, surface plugging is performed on gaps between side end surfaces of track layers (base plates) and side end surface of the mortar layer, the construction strength and the construction cost are effectively reduced, and the stability of a roadbed is maintained.

Description

technical field [0001] The invention relates to a treatment method for sealing a mortar layer separation seam, which belongs to the technical field of high-speed railway ballastless track maintenance and maintenance, and in particular to a non-excavation type ballastless track mortar layer separation seam sealing treatment method. Background technique [0002] The ballastless track needs to pass through the complex geological environment when it is laid, and it will be affected by various external factors, including geological factors, environmental factors and train dynamic loads, during the operation process, resulting in some diseases. Among them, the separation gap formed between the track slab or the base slab and the intermediate cement emulsified asphalt mortar layer is one of the main damage forms of the CRTS Ⅱ slab ballastless track. At present, the commonly used maintenance method for the separation gap is grouting and filling repair. The grouting equipment is used...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B31/00
CPCE01B31/00
Inventor 陈占崔国庆陈仕奇倪国章赵勇李丹何新辉李应平仲光伟曾国升
Owner 中铁四院集团工程建设有限责任公司
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