山区既有线GSM-R改造方案及施工探讨

Transformation Scheme of GSM-R System in Existing Mountain Railway

山区铁路既有线GSM-R改造存在地形条件复杂、无线电波传播困难、改造成本高,以及施工难度大、工期长、行车干扰大等难点。本文以成昆铁路广通-昆明(温泉)段单线电气化铁路既有线GSM-R改造工程为例,探讨如何利用数字光纤直放站、远程供电、天线覆盖等技术实现系统组网,以减少工程造价、降低施工难度和缩短工程周期,为其他类似工程提供借鉴。

The reconstruction of GSM-R in existing mountain railways is a tough task, lacing complex topographic conditions, difficulties in the transmission of radio wave, high cost, harsh construction conditions, long construction period and severe interference to train operation. Take the reconstruction of existing GSM-R for the Guangtong--Kunming （Wenquan） section of elec- trified single track railway as example, how to use digital optical fiber repeater, remote power supply, antenna coverage and other technologies in system networking to reduce cost and difficul- ties and to shorten construction period is explored, providing reference for similar project.