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上海市地铁1号线南段建成通车至今,某些车站与区间结合部(地下线)出现了较严重的不均匀沉降,引起了轨道结构轨面很大的不平顺,危及行车安全。这一现象无疑给轨道工程专业提出了新的课题。对此,本文首先对调整部位进行了分析,进而提出了调整范围和调整量的计算方法,并且提出了一种新型的轨下基础——装配式轨下基础的构想,采用这种轨下基础的轨道结构不仅具备很大的调整量,且调整工艺简便,同时,能够保持整个轨道结构系统的协调性和统一性。
Since the opening of the southern section of Shanghai Metro Line 1 to the present day, there have been more serious non-uniform settlement of some stations and inter-section connections (underground lines), causing a great irregularity of orbital structure rails and endangering traffic safety. This phenomenon undoubtedly put forward a new subject to the track engineering profession. In this regard, this paper first analyzes the adjustment site, and then put forward the calculation method of adjustment range and adjustment, and put forward a new type of rail underbasis - The track structure not only has a large amount of adjustment, and adjust the process is simple, at the same time, to maintain the coordination and unity of the entire track structure system.