RAIL RESTRAINING METHOD AND RAIL RESTRAINING DEVICE

摘要

A rail restraining method for restraining a hot-rolled rail in an upright position at a time of forced cooling of a head portion and a foot portion of the rail includes defining a predetermined position within 2 meters from each of both end faces of the rail along a longitudinal direction of the rail as a first restraining position, defining a predetermined position 3 to 10 meters from the first restraining position in a direction toward center of the rail along the longitudinal direction of the rail as a second restraining position at the time of forced cooling, and restraining displacement of the rail in a vertical direction at the first restraining position and the second restraining position by a restraining force F (kN) that satisfies following Expression (1):;F≧100/L2  (1);where L2 (m) is a distance between the first restraining position and the second restraining position.

主权项

1. A rail restraining method for restraining a hot-rolled rail in an upright position at a time of forced cooling of a head portion and a foot portion of the rail, the rail restraining method comprising:
defining a predetermined position within 2 meters from each of both end faces of the rail along a longitudinal direction of the rail as a first restraining position; defining a predetermined position 3 to 10 meters from the first restraining position in a direction toward center of the rail along the longitudinal direction of the rail as a second restraining position at the time of forced cooling; and restraining displacement of the rail in a vertical direction at the first restraining position and the second restraining position by a restraining force F (kN) that satisfies following Expression (1):
F≧100/L2  (1)where L2 (m) is a distance between the first restraining position and the second restraining position.