Abstract: The viaduct piers between Stations K92+670 and K107+550 as well as between Stations K108+790 and K111+320 of an intercityrailway were observed to be tilted by various degrees due to a municipal engineering construction project. The geometric dimensions of the high-speed railway track in both sections were deformed, which was seriously affected the smoothness and safety of the track alignments. In order to ensure the safety of railway operation, it is urgent to select appropriate measures to correct the piers. This paper presents a case history of correction tilted piers by using the jack-up and shifting box beam method. The principles, key installation aspects and construction monitoring of the box beam jackup and translation method are introduced in the paper.

Key words: High-Speed Rail in Operation, Jacking Up and Shifting Box Beam, Tilted Structure Correction