Rapid repairing method for sunken ballastless track through grouting lifting

A ballastless track and repair method technology, which is applied in the direction of track, track laying, track maintenance, etc., can solve the problems of unsuitable repair work, unfavorable repair work, high cost, etc., and achieve saving of repair material costs, significant technical and economic efficiency, and saving The effect of material cost
CN104153259AInactive Publication Date: 2014-11-19RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
6 Cites 22 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
Publication Date
2014-11-19
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a rapid repairing method for a sunken ballastless track through grouting lifting. According to the method, grouting materials, device tools and a construction technology are needed, and the method specifically comprises the steps that after lifting quantity of the ballastless track is determined, a high-pressure grouting device is adopted, and under certain grouting pressure, rapid-hardening grouting materials are grouted under a ballastless track base which is horizontally arranged in advance and in grouting bags in a graded broken stone surface layer through a grouting pipe in a certain sequence; in the grouting process, an electronic level precise measurement device is adopted to monitor elevation changes of the upper portion of the track in real time, when the elevation is close to or reaches the designed elevation, grouting lifting is stopped, then rapid-hardening grouting materials with high fluidity are directly grouted in the gap between the lifted base and the graded broken stone layer, the grouting materials rapidly and fully fill the gap and are solidified, the lifted base and the graded broken stone layer are integrally bonded, and the ballastless track is precisely lifted and firmly located.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of maintenance and repair of ballastless tracks of high-speed railways, and in particular relates to a rapid repair method for lifting ballastless tracks by grouting for subsidence. Background technique

[0002] Ballastless track is the most advanced track technology in the world today, and it is the main track structure type used in the construction of high-speed railways in my country. my country's new Beijing-Tianjin, Shanghai-Hangzhou, Shanghai-Nanjing, Wuhan intercity, Zhengxi, Wuhan-Guangzhou, Beijing-Shanghai, High-speed railways such as Harbin-Dalian, Jingshiwu, Hangzhou-Ningbo, Ninghang, Hefu, Jinqin, Shanghai-Kunming, Lanxin, Haqi, Ning'an, Zhengxu, Shendan all use ballastless track type. Ballastless track has technical advantages such as high smoothness, good stability, long service life, good durability, and less maintenance workload. Settlement requirements are very strict. The post-construction...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More