Anticipating an imminent large rock slope failure at the Hochvogel (Allgäu Alps)

Johannes Leinauer, Benjamin Jacobs, Michael Krautblatter

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

8 Zitate (Scopus)


Costs for installation and maintenance of protective structures are increasing while alpine hazards progressively threaten alpine communities, infrastructure and economics. Thus, reliable process-based anticipation and early warning strategies offer a cost-effective and smart solution for alpine societies in the near future. However, only few comprehensive pre-failure observations of alpine rock slopes have been reported so far. This paper demonstrates pre-failure observations of a rapidly deforming rock mass (potentially 260,000 m3) at the Hochvogel (Allgäu Alps, 2,592 m a.s.l.) and a geotechnical monitoring and warning concept. This is implemented in the complementary multi-method approach of the AlpSenseBench project and the basis for an effective and reliable early warning system. Since 2014, overall displacement rates in the range of 2 to 10 mm/month in the main decametre deep fracture are observed. It is expected that predictive acceleration patterns will appear in the final pre-failure stage. A detailed knowledge of multiple anticipative signals in correlation with accelerating rock slope deformations will contribute to an advance in accuracy and reliability of rock slide early warning.

Seiten (von - bis)597-603
FachzeitschriftGeomechanik und Tunnelbau
PublikationsstatusVeröffentlicht - Dez. 2020


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