Abstract
This paper deals with the inverse problem of using time-displacement monitoring data to determine the material parameters of a numerical model of a large-scale mass movement. A finite element model for simulating the mechanical behavior is presented for the Gradenbach landslide in Carinthia, Austria. Particular attention is paid to the calibration of the constitutive relationships, which represent a prerequisite for a realistic quantitative analysis. After a short introduction to the concept of model-parameter identification, this paper demonstrates how to apply the proposed model identification strategy to determine model parameters for the Gradenbach example. The impact of the amount of reference data available for the inverse model-parameter analysis is evaluated by means of artificial reference data. Subsequently, the numerical model is calibrated using field measurement data. The results obtained are presented, and the benefits and drawbacks of the proposed concept are evaluated.
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Acknowledgments
The presented results have been achieved within the framework of the DFG research project “Geotechnical modeling of deep-seated slope movements”. The authors wish to express their gratitude for the financial support by the German Research Association DFG (Deutsche Forschungsgemeinschaft), funded by the sponsoring program SCHA 675/11-2 and MO 248/18-2. M. Datcheva acknowledges the support of the Bulgarian Science Fund under the grant DSAB 02/6. The authors would like to thank Stephen Allen and Marcel Regelous for checking and correcting the English in this paper. The anonymous reviewers are gratefully acknowledged for their valuable remarks and suggestions yielding a significant improvement of the paper.
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Meier, J., Moser, M., Datcheva, M. et al. Numerical modeling and inverse parameter estimation of the large-scale mass movement Gradenbach in Carinthia (Austria). Acta Geotech. 8, 355–371 (2013). https://doi.org/10.1007/s11440-013-0211-1
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DOI: https://doi.org/10.1007/s11440-013-0211-1