Abstract: the framework of existing in jacking bridge before construction, according to the actual situation of construction site make feasible construction method.
摘要：既有线框架桥顶进施工前，要根据施工现场实际情况制定切实可行的施工方法。
Skeleton frame bridge jacking method is a frequently adopted practice in the construction of existing railway lines.
框架桥顶进在既有线施工中是较常见的一种施工方式，已经在铁路工程施工中广泛应用。
In view of old bridge bearing needed to be replaced, the paper expounds how to research and develop intelligent automation engineering equipment for Bridges synchronous jacking up.
针对桥梁支座日久老化急需更换的问题，提出了研制智能化、自动化桥梁同步顶升工程装备。
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