Question
Download Solution PDFTo prevent the change in gauge and creep, the steel sleepers are fixed by clips, bolts and ______________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Creep of rail:
- Creep of rails is the forward movement of rails in the direction of dominant traffic over a period of time.
- Creep is undesirable because it disturbs the gauge of the track and the position of sleepers.
- Creep is adjusted by pulling back the rail after loosening the fish plates and fastenings.
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Creep can be avoided by providing creep anchors which grip the rail at the sleepers and prevent it from moving forward.
Rail Anchors:
- The rail anchor is used to restrain the longitudinal movements of rails during thermal changes and wave action.
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The number of anchor keys required for a sleeper to restrain it against creep is 4.
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