Line temporary overhead device and method for ballastless track disease treatment

The invention relates to a line temporary overhead device and method for ballastless track disease treatment, belonging to the technical field of railway ballastless track disease elimination. The temporary overhead device comprises a steel cushion beam, a support, a limiting device and a fastener. The longitudinal beam of the steel cushion beam is welded with a steel plate and has a box section.The upper flange of the longitudinal beam is provided with a plurality of fasteners for locking the rail and the longitudinal beam. The two ends of the longitudinal beam are also supported on the railconcrete support layer through bearings respectively. The connection between the longitudinal beam and the support is provided with a finite position device A. The joint of the longitudinal beam, thefirst small cross beam and the last small cross beam is respectively provided with a finite position device B. The line temporary overhead device for ballastless track disease treatment improves theintegrity and construction c