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安全线是铁路的重要安全设备,是保障铁路运输安全的重要措施之一。高速铁路速度目标值达250~350 km/h,线路纵坡达20‰及以上,进站信号机前制动距离内超过6‰坡度的情况较多,按《高速铁路设计规范(试行)》(TB 10621-2009)要求,在接车线末端需设置安全线。文中对此进行了较为详细的分析、探讨,提出该安全线设置必要性不足,从列车运行控制模式、站场设计及列车运行舒适度等方面考虑,建议取消。
Safety line is an important safety equipment of the railway and one of the important measures to ensure the safety of railway transportation. The target speed of high-speed railway is 250-350 km / h, the vertical line of the line reaches 20 ‰ and above, and there are many cases where the slope of the inbound signal is more than 6 ‰ within the braking distance. According to the Design Specification of High Speed Railway (Trial) (TB 10621-2009) requires that a safety wire be provided at the end of the service lanes. This article has carried on a more detailed analysis, the discussion, proposed that the safety line has the necessary establishment, from the train control pattern, the station yard design and the train movement comfort consideration and so on, proposed cancel.