依托哈大客运专线后张法预应力简支双线箱梁盆式橡胶支座安装和支座砂浆灌注,简述支座的选用、安装方法及固定支座位置的确定方法,分析客运专线简支箱梁直曲线和连续梁曲线段固定支座位置安装的区别,指出高速铁路或客运专线支座安装施工中易出现的问题。总结自流平砂浆灌注流程及冬季施工采取的措施,分析干缩裂纹产生原因,提出其解决方法。 Relying on post-tensioned post-tensioned prestressed double-line box girder basin rubber bearing installation and bearing mortar perfusion of Harbin-Dalian Passenger Dedicated Railway Line, the method of selecting and fixing the bearing and the method of determining the position of fixed bearing are briefly described. The difference between the straight curve of the box beam and the position of the fixed bearing in the curved section of the continuous beam, and points out the problems that may appear in the construction of the bearing of the high-speed railway or passenger dedicated line. The self-leveling mortar perfusion process and the measures taken in winter construction were summarized. The causes of shrinkage cracks were analyzed and the solutions were proposed.