Abstract
The freezing water around the tunnel lining, which is caused by the external temperature during winter, damages portions of tunnel structures, such as the lining and concrete slab track. To investigate the influence of freezing temperature, a total of 50 temperature gauges were installed from the tunnel entrance to 3,270 m. The total length of the tunnel was 8,293 m. The variation in temperature along the tunnel was measured during winter. The correlation between the variation in temperature and the influence of train operation at a speed of 130-150 km/h was analyzed. The duration of the increasing freezing temperature range influenced by train operation was also analyzed and displayed in the results. The results demonstrated that the variation in temperature according to the train operation could be recovered in 30 min. Therefore, when considering the freezing range of a tunnel where trains are travelling at intervals of approximately 30 min, it was judged that the influence factor will be negligible owing to the train operation.
| Translated title of the contribution | Temperature Distribution of Railway Tunnels in Winter |
|---|---|
| Original language | Korean |
| Pages (from-to) | 199-205 |
| Number of pages | 7 |
| Journal | 한국방재학회논문집 |
| Volume | 21 |
| Issue number | 1 |
| DOIs | |
| State | Published - Feb 2021 |