Risk assessment of rock falls released from the former quarry near spitz (Austria)

Autor(en)

Rainer Poisel, Nikolaus Hoedlmoser, Bernhard Grasemann

Abstrakt

In the former quarry near Spitz an der Donau (Austria), many rockfalls have occurred during operation as well as after closure. They have endangered a railway, the Wachau bicycle route, an important road, and the left Danube riverbank. Thus, future detachment scenarios were investigated and, in addition, weather and occurrence statistics were analyzed to determine the occurrence probabilities of these scenarios. Simulations of possible future rockslides were performed using the Distinct Element Code 3DEC in order to estimate the damage caused by these events. Based on these results, the risks of the scenarios were calculated according to the definition of risk as the product of damage and occurrence probability. By this means, the profitability of mitigation measures (e.g., a massive retaining structure fixed to the ground by bored piles) can be evaluated.

Organisation(en)

Institut für Geologie

Externe Organisation(en)

Technische Universität Wien

Journal

Geosciences (Switzerland)

Band

10

Seiten

1-13

Anzahl der Seiten

13

DOI

https://doi.org/10.3390/geosciences10110432

Publikationsdatum

11-2020

Peer-reviewed

Ja

ÖFOS 2012

105124 Tektonik

Schlagwörter

ASJC Scopus Sachgebiete

Allgemeine Erdkunde und Planetologie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/8727eed1-20bd-41b2-8a42-64419cd7a33c