Conceptions of Railway Mine Tracks
The rail track gauge, which refers to the distance between the two rail heads or the rail track centerline on the railway line, is a critical parameter in railway track design and maintenance. Here are some key points related to measuring, spacing, and allowable errors of rail track gauge.
- Measuring Point of Track Gauge
The measurement of rail track gauge takes into account the circular arc on both sides of the rail head and the wheel flange. The contact point between the wheel rim and the rail varies depending on the rail type.
For narrow rail moments, the gauge is measured at a specific point, typically 13mm below the rail top.
- Spacing
Spacing refers to the gap between the rail and the wheel flange to prevent the wheel from getting stuck along the rails and to reduce friction between the wheel and rail.
Maintaining a certain amount of spacing helps ensure smooth and safe operation of railway vehicles.
- Allowable Error of Rail Track Gauge
Due to the significant pressure and impact on the railway caused by cart operations, maintaining the rail track gauge at the nominal value specified in standards is challenging.
Errors in rail track gauge can also occur during construction activities. According to Coal Mine Safety Regulations, allowable errors are specified to ensure safe railway operations.
After construction activities such as widening of straight or curved sections, the width of the railway track gauge should not exceed 5mm and should not narrow by more than 2mm.