Landslide In A Catchment Area Of A Torrent
And The Consequences For
The Technical Mitigation Concept
Author(s)
F. J. Riedl
Abstract
The focus of the following lies on the identification of the practical solutions by
taking into account the theoretical background. A translational landslide occurred
on October 2008 within an area of about 2.5 ha on the topographical left side of
the torrent \“Wattenbach” in Tyrol/Austria.
In the summer of 1965 a large debris flow event of the torrent \“Wattenbach”
happened and the underlying city of Wattens was completely destroyed. After
this event several technical protection measurements were implemented to
guarantee a certain factor of safety for the city of Wattens.
After the landslide event of 2008, the most important question concerned the
interaction of the torrent \“Wattenbach”, the landslide and which reaction could
be expected by a flooding event in the future.
To obtain certain quantitative and qualitative data, several analyses
(modelling of the landslide by regarding different scenarios, laser scans, field
works) were implemented and some of them are still going on.
Keywords: landslide, debris flow, torrent, Austrian Federal Service for Torrent,
Erosion and Avalanche Control, technical protection measurements, natural
hazards.
1 Introduction
1.1 Austrian Federal Service for Torrent, Erosion and Avalanche Control,
District Office \“Middle Inn Valley”
The main tasks of the Austrian Federal Service for Torrent, Erosion and
Avalanche Control are divided into hazard zone planning (risk prevention),
Keywords
landslide, debris flow, torrent, Austrian Federal Service for Torrent,
Erosion and Avalanche Control, technical protection measurements, natural
hazards
Related Book
Other papers in this volume
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