METHOD OF EXPANDING RAILROAD BED INTHE EXISTING RAILWAY BRIDGE AND A WATER JET APPARATUS OF CUTTING BALLAST PROTECTION

摘要

The present invention relates to a construction method for securing the image resistance of guided tracks in an existing railway bridge, and a water jet cutting device for the same. The cleaning by a ballast cleaner is continuously performed on the land and on the existing railway bridge. This is to ensure that the work is done, and that the continuous work is performed to improve the efficiency of the ballast cleaner and to improve the longitudinal and lateral resistance of the existing railroad bridges so that the train can run safely.;Its configuration consists of first installing an alternative gravel with a height approximately equal to the cutting line and having a width of at least 2.5 m from the center of the track, and then the nozzle portion of the water jet cutting device is matched to the cutting line so that the driving pulley The gravel is cut horizontally while being moved horizontally, and then the gravel is cut vertically and blocked, and then the new gravel is replaced with an alternative gravel to resemble an induction phase so that the existing gravel does not flow down to the alternative gravel. After that, it removes the blocks of the gravel and organizes the induction phase.;Induction phase, Balllast Cleaner, Water jet cutting device, Alternative gravel, Construction surface