A calibration of rockfall propagation model based on a full-scale test performed in the Richmond Hill area after the 2011 Christchurch earthquake is presented. Two quantitative accuracy measures have been used to guide the calibration process: (1) the mean distance between the location of arrest of actual blocks and the location of all simulated blocks; (2) the difference between the velocity of simulated blocks and the velocity of actual rockfalls along the propagation path. While the first measure did not provide a sensitive response between the different simulations, the second allowed calibrating the model through a number of trial and error repetitions with progressively improved parameters. This measure is objective, repeatable, and could be integrated within an optimization procedure for an automated calibration of rockfall model. .

Valagussa, A., Crosta, G., Frattini, P., Zenoni, S., Massey, C. (2015). Rockfall runout simulation fine-tuning in Christchurch, New Zealand. In Engineering Geology for Society and Territory - Volume 2: Landslide Processes (pp.1913-1917). Springer International Publishing [10.1007/978-3-319-09057-3_339].

Rockfall runout simulation fine-tuning in Christchurch, New Zealand

VALAGUSSA, ANDREA
Primo
;
CROSTA, GIOVANNI
Secondo
;
FRATTINI, PAOLO
Penultimo
;
2015

Abstract

A calibration of rockfall propagation model based on a full-scale test performed in the Richmond Hill area after the 2011 Christchurch earthquake is presented. Two quantitative accuracy measures have been used to guide the calibration process: (1) the mean distance between the location of arrest of actual blocks and the location of all simulated blocks; (2) the difference between the velocity of simulated blocks and the velocity of actual rockfalls along the propagation path. While the first measure did not provide a sensitive response between the different simulations, the second allowed calibrating the model through a number of trial and error repetitions with progressively improved parameters. This measure is objective, repeatable, and could be integrated within an optimization procedure for an automated calibration of rockfall model. .
Si
slide + paper
3D Simulation; Calibration; Christchurch; Rockfall; Earth and Planetary Sciences (all); 2300
English
IAEG 2014
9783319090566
10.1007/978-3-319-09057-3
Valagussa, A., Crosta, G., Frattini, P., Zenoni, S., Massey, C. (2015). Rockfall runout simulation fine-tuning in Christchurch, New Zealand. In Engineering Geology for Society and Territory - Volume 2: Landslide Processes (pp.1913-1917). Springer International Publishing [10.1007/978-3-319-09057-3_339].
Valagussa, A; Crosta, G; Frattini, P; Zenoni, S; Massey, C
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/105905
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