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武九铁路设计速度200公里/小时,电气化改造隧道多,隧道长,绝大多数隧道均在曲线上,且线间距较小,对施工要求特别高。既有双线200公里/小时隧道电气化改造要点难、邻线行车密度大、是整个施工中的重点、难点,接触网任何带电体以及吊柱本体或者吊柱上的金属部件等在受电弓极限晃动情况下均要满足绝缘距离。结合武九线隧道施工的原理与特征,对隧道吊柱安装调整中的问题进行简单分析,为以后类似的隧道施工提供技术指导和参考。
Wuhan-Kowloon Railway design speed of 200 km / h, electrification of tunnels and tunnels, long tunnel, most of the tunnels are in the curve, and the line spacing is small, the construction requirements are particularly high. The existing two-lane 200 km / h tunnel electrification point difficult, adjacent lane traffic density, is the focus of the construction, difficulties, contact with any charged body and the main body or the gondola on the metal parts in the pantograph The limit of shaking to meet the insulation distance. Combined with the principle and characteristics of the construction of Wujiu Tunnel, the problems in the installation and adjustment of tunnel gondola are analyzed briefly to provide technical guidance and reference for similar tunnel construction in the future.