Numerical Analysis of the 650,000 m2 Åknes Rock Slope based on Measured Displacements and Geotechnical Data

Kveldsvik, Vidar; Einstein, Herbert H.; Nilsen, Bjørn; Blikra, Lars Harald

doi:10.1007/s00603-008-0005-1

Cited by 35 publications

(20 citation statements)

References 23 publications

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“…Geological conditions contributing to slope instability and potential failure at the Åknes rockslide area are: (1) a steep slope angle averaging approximately 35°and (2) foliation oriented parallel to the slope, dipping steeply S-SE along the back scarp (Ganerød et al 2008;Braathen et al 2004). The great impact of groundwater pressure on stability conditions and displacement for the Åknes slope has been confirmed by recent numerical analysis (Kveldsvik et al 2009). …”

Section: Introductionmentioning

confidence: 62%

Meteorological effects on seasonal displacements of the Åknes rockslide, western Norway

Grøneng

Christiansen²,

Nilsen

et al. 2010

Landslides

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In the alpine topography along one of the long fjords with steep and high mountain sides in western Norway the large Åknes rockslide area is defined by a distinct back scarp rising from 800 to 1,000 m a.s.l. In 2004, an extensive monitoring program started, including establishment of a meteorological station above the upper tension crack, 900 m a.s.l. This paper evaluates the significance of meteorological conditions affecting the displacements recorded by five extensometers and two laser sensors in the tension crack from November 2004 to August 2008. Meteorological factors of importance for the recorded activity in the tension crack are found to be melt water in spring and large temperature fluctuations around the freezing point in spring, autumn, and early winter. The records show less acceleration phases in the measured distance across the tension crack in the second half of the analyzed period even though annual displacements are increasing, indicating that other processes, like disintegration of irregularities along unfilled joints and disintegration of intact rock bridges in the sliding plane have become more important.

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Section: Introductionmentioning

confidence: 62%

Meteorological effects on seasonal displacements of the Åknes rockslide, western Norway

Grøneng

Christiansen²,

Nilsen

et al. 2010

Landslides

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“…These simulations are able to reproduce kinematic behavior based on appropriate input of rock mechanical properties and detailed structural data (e.g. Starfield and Cundall, 1988;Bhasin and Kaynia, 2004;Kveldsvik et al, 2008). Although such models remain conceptual to some degree, they can provide important insights into processes acting within the rock mass.…”

Section: Introductionmentioning

confidence: 98%

Composite rock slope kinematics at the current Randa instability, Switzerland, based on remote sensing and numerical modeling

Gischig

Amann

Moore

et al. 2011

Engineering Geology

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“…Blue broken line: profile for numerical modelling. Modified after Kveldsvik et al (2008) Fig. 2 was the same at Å knes, but levelled up, representing higher order of magnitudes.…”

Section: Hazardmentioning

confidence: 99%

“…Use of site dependent data Recent studies by Kveldsvik et al (2008) show that about 650,000 m 2 of the Å knes rockslide is potentially unstable (Fig. 3).…”

Section: Hazardmentioning

confidence: 99%

Risk assessment of a tsunamigenic rockslide at Åknes

et al. 2009

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This paper introduces the application of a simple and practical method for estimating the risk associated with a potential tsunamigenic rockslide, by assessing quantitatively hazard, vulnerability, and elements at risk. The proposed method introduces empirical relations between the risk components and illustrates the uncertainty propagation through the steps in the risk analysis. A case study is presented, showing the applicability of the method for estimating the risk associated with the tsunamigenic Å knes rockslope in Stranda municipality in western Norway. Results show, preliminary risk estimates that will be of significant value for future policy and decision making.

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Numerical Analysis of the 650,000 m2 Åknes Rock Slope based on Measured Displacements and Geotechnical Data

Cited by 35 publications

References 23 publications

Meteorological effects on seasonal displacements of the Åknes rockslide, western Norway

Meteorological effects on seasonal displacements of the Åknes rockslide, western Norway

Composite rock slope kinematics at the current Randa instability, Switzerland, based on remote sensing and numerical modeling

Risk assessment of a tsunamigenic rockslide at Åknes

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