A rapid approach to estimate the rockfall energies and distances at the base of rock cliffs |
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| Authors: | Federica Ferrari Klaus Thoeni Anna Giacomini Cedric Lambert |
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| Institution: | 1. Centre for Geotechnical and Materials Modelling, School of Engineering, Faculty of Engineering and Built Environment, The University of Newcastle, Callaghan, NSW, Australia;2. Golder Associates (NZ) Limited, Christchurch, New Zealand |
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| Abstract: | This paper presents a new methodology for estimating the expected energies and first impact distances at the base of a rock cliff, subject to the geometry and properties of the cliff and the representative block being known. The method is based on a sensitivity analysis, conducted by means of kinematic simulations and carried out for a large range of input parameters and their combinations, taking into account the uncertainty associated with their estimate. The proposed approach is validated by comparing predictions to experimental data and shows great potential for a quick qualitative hazard assessment. |
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| Keywords: | Rockfalls probabilistic modelling sensitivity analysis translational energy impact distance |
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