小“天窗”改造九跨式电分相施工模式探讨

Discussion of Nine-span Neutral Section Reconstruction Mode under Minor "Window"

既有九跨式双断口电分相因不能满足第6次铁路大提速要求而需对其进行改造。本文通过对新、旧电分相的对比及分析,提出了九跨式电分相原位置改造施工的模式,该模式不仅能克服天窗点短对施工的制约,而且能将施工对运输的影响降至最低。

Since the nine-span double open neutral section is unable to satisfy the requirements of the 6^th raising of speed in large scale, so the reconstruction of it is needed. The paper puts forward the reconstruction mode of modification of original location of nine-span neutral section by comparison and analysis of new and old neutral sections, not only this mode can prevent the construction constraints caused by the short ＂window＂ time, but also can it minimize the influences to the transportation caused by the reconstruction.