Recently, North China has ushered in a wide range of snowfall, and what should I do if the high-speed rail slips on the smooth rails on snowy days?
In order to prevent the wheels of the high-speed railway from slipping, two methods are generally used: sand scattering and timely snow removal.
It turns out that the high-speed rail is equipped with a special sand box to store non-slip sand, which is not an ordinary "sand", but a quartz particle made of quartz stone through crushing and processing.
In case of rain, snow and freezing weather, in order to prevent the wheels from idling and slipping, the driver will start the sand spreading system according to the actual situation in operation.
In addition, when the EMU brake control system independently judges that the wheelset is idling or coasting, it will automatically scatter sand.
*It can be seen that the sand is sprinkled on the rail surface at the front end of the wheel running direction along the sand pipe under the action of compressed air, and the wheel rolling over the sand will increase the friction between the wheel and the rail, so as to effectively solve the problem of wheel slippage and ensure that the moving EMU stops within the specified braking distance.
In addition to spreading sand, the railway department uses snow plows to remove snow from key areas of the railway line, including slope line sections and turnouts.
Today, many high-speed rail lines are equipped with high-tech automatic snow melting devices that assist in manual snow and ice removal of turnouts.