According to the condition of wide concrete sleeper line of ordinary speed railway, the overly thick adjusting pad is removed, and the method of ballasting is adopted to rectify the high and low, horizontal and triangle pit of the line.
1 the depth of ballast is lower than 20mm of sleepers bottom, and the width is less than 300mm from the pillow part.
2 track lifting device should be placed smoothly and firmly.
3. When padding the ballast track, the thickness of one pad should not exceed 20 mm, and the height of the lifting should not exceed 50 mm. The two lifters should rise and fall together. The length of each pry shall not exceed 6 sleepers, and fill with the cushion to tamp down the track bed.
4. All wide concrete ties shall be made of longitudinal ballast. The thickness of one ballast shall be in accordance with Article 4.4.4 of the Rules for Repair of Railway Lines, and the length along the slope shall be in accordance with Article 4.4.5 of the Rules for Repair of Railway Lines.
5 backfill ballast and tamping, track bed leveling.
6 Operating person in charge inspects and confirms that the line has reached the opening conditions, field protectors confirm that no person, machinery and materials have intruded into the limit, remove the moving stop signal, station keepers confirm that the track circuit is good or not, and station keepers register and apply for opening the line in accordance with the Rules for the Implementation of Safety Management of Business Line Construction.
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