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铁路已经有150年历史,但在技术高度发达的今天,却对自然界一年一度的秋天落叶灾害问题没有完全解决。每逢秋季,钢轨上的落叶被列车碾压成黑色粘滑的叶渣,从而影响列车的正常运行。如果这时列车进行制动,车轮被闸瓦抱死沿着钢轨滑行,会导致轮轨严重磨损,造成巨大的经济损失。在山区铁路的坡道上,薄如纸张的落叶能使几百吨列车的牵引力全部耗尽,造成坡停事故。
The railway has a history of 150 years. However, at a time when the technology is highly developed, the issue of the annual autumn deciduous disasters in nature has not been completely solved. Every fall, the fallen leaves on the rails are rolled by the train into black, sticky and slippery leaf residue, thus affecting the normal operation of the train. If the train is braked at this time, the wheel is locked by a brake shoe and slides along the rail, resulting in serious wheel-rail wear and a huge economic loss. On the mountain railway ramps, thin paper-like fallen leaves can exhaust hundreds of tons of train trains and cause hill-stop incidents.