Risk-based characterisation of an urban building site |
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| Authors: | Maximilian Huber Fabrizio Marconi Massimiliano Moscatelli |
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| Institution: | 1. Unit GEO-Department of Dike Safety, Deltares, Delft, the Netherlands;2. Consiglio Nazionale delle Ricerche, Istituto di Geologia Ambientale e Geoingegneria (IGAG), Rome, Italy |
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| Abstract: | The evaluation of the underground soil stratigraphy is a key aspect in geotechnical site characterisation. However, these means of site exploration are only pinholing subsoil conditions and expert knowledge is needed to understand subsoil conditions in order to build a reliable geological-geotechnical model. This contribution employs a geostatistical simulation methodology for the simulation of random fields representing geological uncertainty. This combines borehole data and expert knowledge via a mathematical framework. Moreover a risk-based site characterisation scheme is developed for urban site characterisation. This novel characterisation scheme offers additional insight into the effects of large-scale, geological spatial variability by using fragility curves to quantify these effects. |
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| Keywords: | heterogeneity fragility curves Pluri-Gaussian simulation approach risk-based site characterisation soil variability spatial variability |
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