CONSTRUCTION METHOD FOR TREATING OVER-LIMIT DISEASE AT CORNER OF HIGH-SPEED RAILWAY BRIDGE BEARING

The present invention relates to a construction method for treating the over-limit disease at the corner of high-speed railway bridge bearing, through the inspection and acceptance of the intelligent synchronous jacking equipment, the beam bottom and leveling a concrete base surface of and the top surface of a bearing pad stone, confirmation of the bridge vertices, install the jacking equipment at the vertices, the sliding support and monitoring feedback unit, installation and debugging of jacking equipment, bearing digging, pressure maintaining and jacking test, formal synchronous jacking, bearing removal, new bearing installation and alignment installation and fixation of the upper base plate of the original bearing and the lower base plate of the bearing, in the process of replacing the bearing, jacking up and supporting the position of the original bearing by connecting the upper base plate of the original bearing with the lower base plate of the bearing, the construction method can simple construction process operation, low operation difficulty, safety and quickness; the bearing structure under the original support can be well reserved, grouting is not needed again, and the working procedure time is greatly shortened; the single skylight can be realized to finish the treatment of the bearing diseases, and the normal operation of the existing railway is not influenced, also can shorten the construction period, reduce the safety risk and the labor intensity .