AUTOMATIC SUBSIDENCE CORRECTING APPARATUS FOR LOOSE SLEEPER BETWEEN DIFFERENT TRACK STRUCTURES, AND CONSTRUCTING METHOD THEREOF

摘要

Provided are automatic subsidence correcting apparatus for a sleeper of a track connection unit and a construction method of the apparatus, capable of: performing an automatic correction by the up and down mechanical interlocking of a housing and the expansive force of an air bag when ballast subsides; and easily coping with differential settlement occurring in the right and left side of the sleeper by automatic subsidence correcting devices, which are respectively arranged in the right and left side of the sleeper and independently operate for correcting subsidence.