结合增建复线谈既有线的改造

Discussion on the Reconstruction of the Exiting Line Connecting with Addition of Double Line

既有线改造在我国铁路发展上起着非常重要的作用。以"北同蒲铁路朔州至宁武增建二线工程"为例,讨论了关于既有线改造的若干技术问题,包括改建方案的确定、平面的改造、纵断面的改造以及施工与过渡等问题。

The reconstruction the exiting railway line plays an important role in the development history of Chinese railway. Taking the addition of double line project from Shuozhou to Ningwu on Beitongpu Railway Line as an example, this paper discusses some technical problems about the reconstruction of the existing line, which include the determination of the reconstruction scheme, the transformation of the plane, the transformation of the longitudinal section, the construction and the transition.