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Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Volume 4, issue 2
Nat. Hazards Earth Syst. Sci., 4, 187–196, 2004
https://doi.org/10.5194/nhess-4-187-2004
© Author(s) 2004. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

Special issue: Geo-databases for Natural Hazards and Risk Assessment

Nat. Hazards Earth Syst. Sci., 4, 187–196, 2004
https://doi.org/10.5194/nhess-4-187-2004
© Author(s) 2004. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

  15 Apr 2004

15 Apr 2004

Design of a geodetic database and associated tools for monitoring rock-slope movements: the example of the top of Randa rockfall scar

M. Jaboyedoff1,2, P. Ornstein2, and J.-D. Rouiller2 M. Jaboyedoff et al.
  • 1Quanterra, Ch. de la Tour Grise 28, 1007 Lausanne, Switzerland
  • 2Centre de Recherches sur l’Environnement Alpin, 1950 Sion, Switzerland

Abstract. The need for monitoring slope movements increases with the increasing need for new areas to inhabit and new land management requirements. Rock-slope monitoring implies the use of a database, but also the use of other tools to facilitate the analysis of movements. The experience and the philosophy of monitoring the top of the Randa rockfall scar which is sliding down into the valley near Randa village in Switzerland are presented. The database includes data correction tools, display facilities and information about benchmarks. Tools for analysing the movement acceleration and spatial changes and forecasting movement are also presented. Using the database and its tools it was possible to discriminate errors from critical slope movement. This demonstrates the efficiency of these tools in monitoring the Randa scar.

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