The invention belongs to the technical field of repair of high-speed railway ballastless tracks and particularly relates to a lifting
repair method for a ballastless track with a settled curved section. The lifting
repair method for the ballastless track with the settled curved section comprises the steps that after a lifting unit and the lifting quantity of the curved section of the ballastless track are determined, a high-
pressure grouting device is adopted, grouting is conducted on a lifting hole and a filling hole in sequence according to determined equipment parameters, hole positions, a grouting sequence, a grouting
rhythm and construction steps with a triangle balance lifting method at a certain pressure, grouting materials are injected into the position below the ballastless track through a grouting
pipe installed in the grouting hole in advance and are rapidly cured, longitudinal displacement change, transverse displacement change and
vertical displacement change of the track are monitored in real time through a measuring device, and then accurate lift, balance supporting and rapid repair are conducted on a settled ballastless track structure. According to the lifting
repair method for the ballastless track with the settled curved section, construction is rapid, practicability and reliability are achieved, cost is low, and the method which is rapid and convenient to implement, practical and economical is provided for solving of the problem of settlement of the ballastless track within
skylight time.