| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a prestressed ballast track capable of maintaining a track subsidence suppression effect over a long period. <P>SOLUTION: In a prestressed ballast track 100 for applying prestress to ballast 3 between a sleeper 4 and a subgrade 1 by a prestressing member 10 arranged across the subgrade 1 and the sleeper 4 of the track, the prestressing member 10 structurally has elasticity in a prestressing direction. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
