Method for lifting end-beam-contained ballastless track structure under operation high-speed rail

The invention provides a method for lifting an end-beam-contained ballastless track structure of an operating high-speed rail, and relates to the technical field of railway ballastless track structure repair, comprising the following steps: determining the lifting range and target lifting amount of the end-beam-contained ballastless track structure; a plurality of grouting lifting holes are formed right above the end beam of the ballastless track containing the end beam, armpit feet on the two sides and the ballastless track of the front section and the rear section adjacent to the end beam; meanwhile, grouting materials are injected into the grouting lifting holes in the end beam area, and the ballastless track with the lower end beam is lifted; and after the grouting lifting hole is lifted to the target lifting amount, the grouting lifting hole is densified, and a high-fluidity low-expansibility grouting material is injected to complete filling. According to the method, the grouting lifting holes are formed