Abstract
In water pressure-relieved rail tunnels, calcium carbonate scaling occurs in tunnel drain pipes. This scaling is caused by the surrounding geology, groundwater or the use of building materials containing cement. If the amount of scale becomes excessive, the drains have to be be cleaned to prevent an increase of the water pressure on the tunnel lining, which can cause damage to the tunnel structure or water ingress. At the moment, the growth of scale in tunnel drainage can only be monitored by camera surveys. This requires closure of the track or the whole tunnel and causes a massive operational restriction. Therefore the ÖBB-Infrastruktur AG project “Task Force Drainage” is looking for ways to monitor the growth of scale without any operating restrictions. Among other measures, an FFG project has been launched, and international knowledge transfer is taking place in the context of Shift2Rail. Various sensors and measuring methods are currently being examined regarding their suitability for this research question, examples including the measurement of differences in electrical resistance and acoustic measurement methods.
| Translated title of the contribution | Current research by ÖBB Infrastruktur AG on scale monitoring without track closures |
|---|---|
| Original language | German (Austria) |
| Pages (from-to) | 277 - 285 |
| Number of pages | 9 |
| Journal | Geomechanik und Tunnelbau |
| Volume | 11 |
| Issue number | 3 |
| Publication status | Published - Jun 2018 |
Fields of science
- 202012 Electrical measurement technology
- 202 Electrical Engineering, Electronics, Information Engineering
- 202015 Electronics
- 202016 Electrical engineering
- 202027 Mechatronics
- 202037 Signal processing
JKU Focus areas
- Mechatronics and Information Processing