专线 4245A道岔在运营中的常见病害及整治措施

遂成高铁在大英东、积金南、准口南站，正线通过的岔道，均采用专线4245A型道岔。营运3年以来发生了路基沉降、线位偏移、轨道框架失稳等病害。针对客专道岔（专线4245A）在遂成线运营中的常见病害进行分析，提出了遂成线道岔精调及病害整治的具体措施。

Study on Common Diseases of PDL 4245A Turnout in Operation and the Treatment Measures

As regards the Suining-Chengdu Express Railway, the crossings, through which the line goes, such as Daying (east), Jijin (south), and Zhunkou (south), adopt the PDL 4245A turnout. During 3 years operation, the diseases, such as subgrade settlement, line deviation, track frame failure, arose. In relation to the common diseases of PDL turnout (4245A) in operation of Suining-Chengdu Line, study and analysis were carried out, and the detailed measures treating these diseases and adjusting the turnout accurately were proposed.