 |
| Titel |
Climate-induced landslide reactivation at the edge of the Most Basin (Czech Republic) – progress towards better landslide prediction |
| VerfasserIn |
J. Burda, F. Hartvich, J. Valenta, V. Smítka, J. Rybar |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 13, no. 2 ; Nr. 13, no. 2 (2013-02-15), S.361-374 |
| Datensatznummer |
250017573
|
| Publikation (Nr.) |
 copernicus.org/nhess-13-361-2013.pdf |
|
|
|
|
|
| Zusammenfassung |
| The catastrophic landslide at Eisenberg in North Bohemia was reactivated
during January 2011. This study integrates a range of geoscientific evidence
in order to constrain the spatial and temporal development of this
reactivation. It has investigated long-term geodetic measurements to assess
the morphological development of the site over the last two decades. There is
evidence to suggest that, over this period, the site had been subjected to
progressive deformation caused by the collapse of an old mine gallery.
However, climatic data show that the reactivation itself was triggered by a
dramatic rise in the water table induced by rapid snowmelt during a period
of winter warming. Furthermore, geomorphological mapping has been used to
characterise the morphology of the reactivated landslide and geophysical
profiling has been used to analyse its internal structure. The results show
that fissures are continuing to develop above the reactivated landslide
scarp while highly saturated stiff-fissured claystones provide an incipient
slide plane. The application of laser scanning has shown minimal evidence
for ongoing landslide activity. It is, however, clear that future landslide
events will occur here due to the favourable lithological, structural, and
geotechnical conditions. Finally, we propose that future landslide activity
at the site may be predicted by the height of water table as this defines
theoretical pore pressure at the depth of the shear plane. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|