Abstract: This paper introduces the general situation of the newly-built main line, connecting line, highway and railway bridge which shared section with the existing line of Hefei-Hangzhou high-speed railway. It also proposes the key points and difficulties in the design of Hefei-Hangzhou high-speed railway. Then, by choosing three typical shared sections, including Hehang high-speed railway, the existing Xuanhang railway, the existing Hefu high-speed railway and Yangtze River highway and railway bridge connecting Wuhu hub, this paper proposes the specific wireless design solution to solve the problems in GSM-R system design and optimization, such as difficult frequency point planning, inconsistent construction period and poor quality caused by wireless interference, and the solution has been well proved in the integration test and commissioning. In the end of this paper, the experiences of this project and the suggestions for the solution design of similar railway section are summarized.

Key words: high-speed railway, shared section, GSM-R system, network optimization

摘要： 介绍合杭高铁新建正线、联络线及公铁两用大桥与既有线交叉并线的工程概况，提出合杭高铁的设计重点和难点。选取合杭高铁与既有宣杭铁路、既有合福高速铁路以及接入芜湖枢纽长江公铁两用大桥3处典型的并线区段，对GSM-R系统方案设计与优化过程中，遇到频点规划难、建设工期不一致、无线干扰引起质差的相关情景，给出具体的无线设计解决方案，这些方法在联调联试中得到了很好的印证。最后总结此次工程的经验，以及对类似区段铁路方案设计时的建议。

关键词: 高速铁路, 并线区段, 铁路数字移动通信系统, 网络优化