Anzeige
Erschienen in:
2013 | OriginalPaper | Buchkapitel
Monitoring Displacement on the Mannen Rockslide in Western Norway
verfasst von : Lene Kristensen, Lars Harald Blikra
Erschienen in: Landslide Science and Practice
Verlag: Springer Berlin Heidelberg
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Abstract
In Norway, four large rock slides are considered high-risk objects and equipped with real time early warning system. The mountain Mannen is the most recently instrumented of those. Construction and instrumentation was started in 2009 and was almost completed in 2010. To ensure redundancy, several types of instruments are used, such as lasers, realtime DGPS, extensometers, ground based InSAR system, borehole instrumentation and a meteorological station. The surface displacement is about 3 cm/year, with the largest velocity in the upper part, where the annual probability of failure estimated to 1/100. Strong subsurface deformation is measured in a 120 m borehole, suggesting a complex movement in a graben structure at the back-crack.