 |
| Titel |
Frost damage of bricks composing a railway tunnel monument in Central Japan: field monitoring and laboratory simulation |
| VerfasserIn |
C. Thomachot, N. Matsuoka, N. Kuchitsu, M. Morii |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 5, no. 4 ; Nr. 5, no. 4 (2005-07-14), S.465-476 |
| Datensatznummer |
250002644
|
| Publikation (Nr.) |
 copernicus.org/nhess-5-465-2005.pdf |
|
|
|
|
|
| Zusammenfassung |
| Bricks of tunnels and bridges of Usui Pass railway (Japan) exposed to north
are subject to frost damage. Average depth of erosion due to detachment of
angular blocks is around 1-1.5 cm. In order to assess this weathering and
to
understand its mechanism, an experimental study was carried out in the field
and laboratory. Field monitoring showed the combination of seasonal and
diurnal freezing with a maximum of heave when the freezing front reached
5 cm depth. Bricks taken from the site were submitted to unidirectional
freezing at capillary and vacuum saturation in the laboratory. Results
showed that frost damage of bricks was favoured by high saturation level and
repetition of freeze-thaw cycles. |
| |
|
| Teil von |
|
|
|
|
|
|
|