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沪宁线南翔至昆山间因受4.0米线间距制约而限速160km/h,为了实现沪宁线开行200km/h准高速列车的目标,对线间距为4.0m的区段进行线间距改造,使其达到4.4m线间距以适应200km/h提速的需要。本文就线路轨道部分拨道施工中如何控制几项关键点以实现改造后的线路快速优质稳定作一简要论述。
In order to achieve the goal of 200km / h quasi-high-speed trains running from Shanghai-Nanjing line to Nanning-Kunshan line due to the 4.0-meter line spacing restriction, the line-to-line distance was reconstructed in the section with line spacing of 4.0m. 4.4m line spacing to meet the needs of 200km / h speed. This article on the track part of track construction how to control several key points in order to achieve a rapid transformation of high quality and stability of a brief discussion.