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Tunnel boot sleeving method replaceable supporting block ballastless track construction method

A ballastless track and construction method technology, applied in the direction of track, track laying, track maintenance, etc., can solve the problems of affecting the normal operation of the railway, long replacement construction period, and high replacement construction intensity.

Inactive Publication Date: 2020-10-20
中铁九局集团第六工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the subsequent operation process, the damage of the sleeper is an inevitable common phenomenon. After the sleeper is damaged, the sleeper needs to be replaced as a whole. The replacement construction is intensive and the replacement construction period is long, which affects the normal operation of the railway.

Method used

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  • Tunnel boot sleeving method replaceable supporting block ballastless track construction method
  • Tunnel boot sleeving method replaceable supporting block ballastless track construction method
  • Tunnel boot sleeving method replaceable supporting block ballastless track construction method

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Embodiment 1

[0095] The Gada Tunnel is located in Zha Nang County, Shannan District, on the left side of the Yarlung Zangbo River in the southeast of the Qinghai-Tibet Plateau. It is located in an inactive fault zone. The entrance mileage is DK73+503, the exit mileage is DK74+623, and the total length is 1120m. It is a single-hole passenger railway tunnel. Considering the difficulty of replacing sleepers during maintenance and maintenance of tunnels with long working space and long working space, we adopted the ballastless track with replaceable bearing blocks by the sheathing method in the structural construction of the tunnel line, and completed the repair of the damaged track during the renovation. The replacement of the support block ensures the good condition of the line

[0096] 1. Construction process

[0097] The main construction process of the elastic bearing block type ballastless track is: pre-embedded steel bars on the base - roughening or chiseling the base - implanting conne...

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Abstract

The invention discloses a tunnel boot sleeving method replaceable supporting block ballastless track construction method. The main construction process comprises the steps of pre-burying reinforcing steel bars in a base, roughening or chiseling the base, implanting connecting reinforcing steel bars, erecting a ballast bed lower-layer reinforcing mesh, assembling a track panel on site, erecting thetrack panel and roughly adjusting in place, erecting upper-layer longitudinal and transverse reinforcing steel bars, erecting a ballast bed template, finely adjusting and fixing the track panel, pouring ballast bed concrete and plastering, loosening fasteners after initial setting, curing concrete, dismounting and transferring the template. By means of the method, the technical problem in the prior art that a supporting block is difficult to replace is solved, and the replaceable supporting block is constructed through a boot sleeving method.

Description

technical field [0001] The invention relates to a construction method for a ballastless track of a support block, in particular to a real-time monitoring and alarm device for loosening and falling off of hob bolts of a shield machine based on Internet of Things technology. Background technique [0002] The existing support block construction in the tunnel generally adopts the construction method of integrally forming the sleeper. In the subsequent operation process, the breakage of the sleeper is an inevitable common phenomenon. After the sleeper is damaged, the sleeper needs to be replaced as a whole. The replacement construction is intensive and the replacement construction period is long, which affects the normal operation of the railway. Contents of the invention [0003] In view of the above problems, the present invention proposes a construction method of ballastless track with replaceable bearing block by tunnel boot method. The support block is directly separated ...

Claims

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Application Information

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IPC IPC(8): E01B1/00E01B29/00E01B29/02E01B9/30
CPCE01B1/002E01B29/005E01B29/02E01B9/303E01B2201/08E01B2204/09
Inventor 许庆君陈向利舒承兴贾进勇王颜辉金毓红李想
Owner 中铁九局集团第六工程有限公司
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