接触轨电连接板式膨胀接头初始滑动力研究

以广州地铁四号线为例,针对广州地铁四号线开通运营十多年以来频繁出现的接触轨膨胀接头不能实时补偿问题,做了详细介绍。并就其与膨胀接头初始滑动力关系进行了阐述与研究,提出针对电连接板式膨胀接头初始滑动力过大问题的解决方法。

Taking Guangzhou Metro Line 4 as an exemplar, this paper gives a detailed introduction to the problem that the con-tact rail expansion joint frequently appears in more than ten years of operation of Guangzhou Metro Line can not be compensated inreal time. The relationship between the initial sliding force and the expansion joint is described and studied, and the solution to theproblem of excessive initial sliding force of the expansion joint is put forward.