Search Forum
Blog Entry# 826690
Posted: Aug 13 2013 (12:19)
19 Responses
Last Response: Aug 14 2013 (07:31)
19 Responses
Last Response: Aug 14 2013 (07:31)
in school days we used to have a question on thermal expansion...why is there gap between two rail tracks? the answer would be to allow expansion of tracks during summers and prevent tracks from bending...
thanks to terrorist activities and fish plate removals, now railtracks are long welded. kilometres of tracks without fishplates and junctions. has the heat stopped increasing the length of tracks or has the coefficient of thermal expansion for iron decreased?
thanks to terrorist activities and fish plate removals, now railtracks are long welded. kilometres of tracks without fishplates and junctions. has the heat stopped increasing the length of tracks or has the coefficient of thermal expansion for iron decreased?
15 Public Posts - Tue Aug 13, 2013
also
Wooden sleepers are used on bridges and turnouts because they are very easily cut and sized on site to fit the peculiarities of the particular stretch of track. Wooden sleepers were also preferred for bridges because they are lighter compared to the concrete sleepers, and provide additional damping for vibrations. A small number of wooden sleepers are procured for these reasons while the manufacture of steel channel sleepers and their special damping pads lags
Source : IRFCA click here
Wooden sleepers are used on bridges and turnouts because they are very easily cut and sized on site to fit the peculiarities of the particular stretch of track. Wooden sleepers were also preferred for bridges because they are lighter compared to the concrete sleepers, and provide additional damping for vibrations. A small number of wooden sleepers are procured for these reasons while the manufacture of steel channel sleepers and their special damping pads lags
Source : IRFCA click here
3 Public Posts - Wed Aug 14, 2013