Research Article
Study of a Space-Time Monitoring of High-Speed Railway Underline Structure Using Distributed Optical Vibration Sensing Technology
Table 6
Left track line on-site measurement conditions.
| | Locomotive | Date | Track condition | Train passing time | Direction |
| | 1st train | 2015.9.23 | Before repair | 18:04:20 | Left track (upward) | | 2015.9.24 | After repair | 18:04:09 | Left track (upward) |
| | 2nd train | 2015.9.23 | Before repair | 18:19:00 | Left track (upward) | | 2015.9.24 | After repair | 18:15:45 | Left track (upward) |
| | 3rd train | 2015.9.23 | Before repair | 19:03:51 | Left track (upward) | | 2015.9.24 | After repair | 18:05:45 | Left track (upward) |
| | 4th train | 2015.9.23 | Before repair | 19:15:30 | Left track (upward) | | 2015.9.24 | After repair | 19:14:36 | Left track (upward) |
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