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Çѱ¹Áö¹Ý°øÇÐȸ / v.24, no.2, 2008³â, pp.45-57
ºÐ±â±â ¸Á°£ Å©·Î½ÌºÎ ³ë¹Ý°Åµ¿
( Roadbed Behavior in Managanese Crossing of Turnout System )
Àü»ó¼ö;¾ö±â¿µ;±èÀç¹Î; ÀÎÁ¦´ëÇб³ Åä¸ñ°øÇаú;Çѱ¹Ã¶µµ±â¼ú¿¬±¸¿ø;ÀÎÁ¦´ëÇб³ Åä¸ñ°øÇаú;
 
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The improved turnout system is developed to speed-up the pre-existing railroad. The research has been actively carried out far the improved turnout system and the impact factor is estimated using the data sets achieved from the dynamic wheel-load field tests in both the conventional and the improved turnout system. In this study, the track performance and roadbed behavior are examined for the conventional and improved turnout system using the estimated impact factor. Dynamic wheel load and rail pressure are evaluated to assess the track performance. Roadbed stress and settlements are estimated using numerical analysis. Additionally, the stability of roadbed is estimated in soft roadbed condition influenced by the weather effects and cyclic train loading. The results show that dynamic wheel load, rail pressure, roadbed stress, and roadbed settlements in the improved turnout system substantially decrease compared with those in the conventional turnout system.
 
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Dynamic wheel load;Impact factor;Numerical analysis;Rail pressure;Roadbed settlement;Turnout system;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.24, no.2, 2008³â, pp.45-57
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200814364033538)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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