Abstract
In this study, a test-bed system simulated a tunnel and concrete track is tested on cite and invested an allowed limit of multi-layered sound absorbing panel for reducing noise reflected on the concrete track in train tunnel considering the criteria and limitation on the theoretical back ground. The studied results are an effective evaluating system of the sound absorbing coefficient influenced fluid effects depending on the vehicle speed in the urban train tunnel and measuring not only structural behaviors of maximum displacement and acceleration of the panel but also dynamic characteristics of damping ratio and natural frequency.
| Translated title of the contribution | Developments of monitoring system to measure sound absorbing coefficient and structural stability of sound absorbing panel on the concrete track in the urban train tunnel |
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| Original language | Korean |
| Pages (from-to) | 1-9 |
| Number of pages | 9 |
| Journal | 한국터널지하공간학회 논문집 |
| Volume | 19 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2017 |