Continuous monitoring of landslides using GPS and fiber optic sensors

Natural catastrophes caused by landslides occur frequently in alpine regions. The aim of this project is the detailed investigation of landslide motions to discover possible precursors of mass movements. For this purpose, a monitoring system was developed and installed on a slope, which captures both the slope movements, as well as their influencing factors. The monitoring at Gradenbach consists of the three components:
  • Geodetic Deformation Monitoring
  • Seismic Monitoring
  • Climate / Hydrology Monitoring
The results of the continuous mass movements show periods of accelerated movements followed by a calming down process of the displacements. This requires further research on deep-seated mass movements using other sensors as well.

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Acknowledgements
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This project is funded by the Austrian Academy of Sciences (OEAW) in the project ISDR-2008.
Related publications
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Schönberger C, Lienhart W, Lang E, Stary U: Erfahrungen aus 20 Jahre GPS Monitoring der Massenbewegung Gradenbach. Proc.: Geomonitoring 2020: 149-162. doi

Lienhart W. (2015) Case studies of high-sensitivity monitoring of natural and engineered slopes. Journal of Rock Mechanics and Geotechnical Engineering 7: 379-384. PDF

Brückl E., Brunner F.K., Lang E., Mertl S., Müller M., Stary U. (2013) The Gradenbach Observatory - monitoring deep-seated gravitational slope deformation by geodetic, hydrological, and seismological methods. Landslides. June 2013. PDF

Lienhart W. (2013) Die Bedeutung von faseroptischen Messsystemen für ingenieurgeodätische Überwachungsmessungen. Proc. 2. Darmstädter Ingenieurkongress - Bau und Umwelt, Darmstadt: 591-595. PDF

Lienhart W., Brunner, F.K. (2013) Geodätische Überwachung von gravitativen Massenbewegungen am Beispiel des Gradenbach-Observatoriums. ZfV 138: 64-74. Reprint

Brunner F.K., Woschitz H. (2011) Über die Erweiterung des ingenieurgeodätischen Monitorings. Allg. Verm. Nachr. 118: 212-218. Reprint

Lang E., Stary U. (2011) Multifunctional Monitoring in Torrent Catchments. Die Bodenkultur, Journal for Land Management, Food and Environment. Universität für Bodenkultur Wien, Heft 1-4, Jahrgang 62, S. 71-76. Reprint

Müller M., Brunner F.K., Lang E. (2011) Long term Measurement and Analysis of a Deep-Seated Mass Movement. 8th Int. Symp. Field Measurements in GeoMechanics - FMGM, Berlin, Germany. 18 p. PDF

Weidner S., Moser M., Lang E. (2011) Geotechnische und kinematische Analyse des Talzuschubes Gradenbach (Kärnten/Österreich). Jahrbuch der Geologischen Bundesanstalt, Wien, 151(1-2): 17-60. Reprint

Woschitz H., Macheiner K., Brunner F.K. (2011) In-situ Strainmessungen mit langarmigen faseroptischen Sensoren. Allg. Verm. Nachr. 118: 242-251. Reprint

Wöllner J., Woschitz H., Brunner F.K. (2011) Testing a large fiber optic strain-rosette, embedded in a landslide area. 8th Int. Symp. Field Measurements in GeoMechanics - FMGM, Berlin, Germany. 18 p. PDF

Woschitz H. (2010) Entwicklung einer langarmigen faseroptischen Strain-Rosette zum Monitoring eines Rutschhanges. Öst. Z. f. Vermessung und Geoinformation 98: 29-39. PDF

Brückl E. and Brückl J. (2006) Geophysical models of the Lesachriegel and Gradenbach deap seated mass movements (Schober range, Austria). Engineering Geology 83: 254-272. Reprint

Brückl E., Brunner F.K., Kraus K. (2006) Kinematics of a deep-seated landslide derived from photogrammetric, GPS and geophysical data. Engineering Geology 88: 149-159. Reprint

Hagen K., Lang E. (2000) Schneehydrologische Untersuchungen im Einzugsgebiet des Gradenbaches (Kärnten). FBVA-Berichte 116, Wien. 68p. Reprint

Weidner S. (2000) Kinematik und Mechanismus tiefgreifender Hangdeformationen unter besonderer Berücksichtigung der hydrologischen Verhältnisse. PhD thesis. Friedrich-Alexander-Universität Erlangen/Nürnberg. 246p. Reprint

Lang E., Hagen K. (1999) Wildbacheinzugsgebiet Gradenbach. Analyse des Niederschlag- und Abflußgeschehens 1968-1996. FBVA-Berichte 108, Wien. 109p. Reprint