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Multi-hazard Risk Assessment

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Desiderata Geotechnica

Part of the book series: Springer Series in Geomechanics and Geoengineering ((SSGG))

Abstract

This paper presents a brief summary of multi-hazard risk assessment, focusing on cascading landslide hazards. It starts by presenting the multi-hazard processes an engineering system may face, and possible interactions among the separate hazards and between the vulnerabilities of elements at risk to these hazards. Then a framework for analyzing the flooding, landslide and debris flow processes in a rainstorm is introduced. Multi-hazard risk assessment requires more comprehensive physical analyses than what are needed in conventional geotechnical design. Stability analysis, flow analysis and impact analysis are all required. The outcomes of such physical analyses form the basis for evaluating the risks associated with these multi-hazardous processes. The multi-risk analysis can be performed using a HKUST five-step procedure, which describes the hazardous processes in an explicit probabilistic framework and identifies key parameters that govern the success of a risk mitigation effort. Rational engineering decisions and emergency management policies can be made based on such physically-based risk analysis.

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Acknowledgments

I would like to thank Prof. Gerd Gudehus on the special occasion of his 80th birthday, for hosting me as a senior visiting scholar in 1995 at Institute for Soil and Rock Mechanics of Karlsruhe University, and for his insight in teaching and research in soil mechanics and geotechnical engineering. The research reported in this paper was supported by the Research Grants Council of the Hong Kong SAR Government (Projects No. C6012-15G, T22-603/15N and 16206217).

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Authors and Affiliations

  1. Hong Kong University of Science and Technology, Kowloon, Hong Kong

    Limin Zhang

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  1. Limin Zhang
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Correspondence to Limin Zhang .

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Editors and Affiliations

  1. Institut für Geotechnik, Universität für Bodenkultur, Vienna, Austria

    Wei Wu

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Zhang, L. (2019). Multi-hazard Risk Assessment. In: Wu, W. (eds) Desiderata Geotechnica. Springer Series in Geomechanics and Geoengineering. Springer, Cham. https://doi.org/10.1007/978-3-030-14987-1_27

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  • DOI: https://doi.org/10.1007/978-3-030-14987-1_27

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-14986-4

  • Online ISBN: 978-3-030-14987-1

  • eBook Packages: EngineeringEngineering (R0)

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