A Depth-Integrated SPH Model for Debris Floods: Application to Lo Wai (Hong Kong) Debris Flood of August 2005

Lin, Chuan and Pastor Pérez, Manuel Tomás and García Yagüe, Ángel and Moussavi Tayyebi, Saeid and Martín Stickle, Miguel and Manzanal, Diego Guillermo and Li, Tongchun and Liu, Xiaoqing (2019). A Depth-Integrated SPH Model for Debris Floods: Application to Lo Wai (Hong Kong) Debris Flood of August 2005. "Géotechnique", v. 69 (n. 12); pp. 1035-1055. ISSN 0016-8505 | 1751-7656. https://doi.org/10.1680/jgeot.17.P.267.

Description

Title: A Depth-Integrated SPH Model for Debris Floods: Application to Lo Wai (Hong Kong) Debris Flood of August 2005
Author/s:
  • Lin, Chuan
  • Pastor Pérez, Manuel Tomás
  • García Yagüe, Ángel
  • Moussavi Tayyebi, Saeid
  • Martín Stickle, Miguel
  • Manzanal, Diego Guillermo
  • Li, Tongchun
  • Liu, Xiaoqing
Item Type: Article
Título de Revista/Publicación: Géotechnique
Date: 19 November 2019
ISSN: 0016-8505 | 1751-7656
Volume: 69
Subjects:
Freetext Keywords: Landslides, Numerical Modelling, Water Flow
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Matemática e Informática Aplicadas a la Ingenierías Civil y Naval
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In this work an approach to representing debris floods and flows is proposed, based on a depth-integrated mathematical model and smooth particle hydrodynamics numerical technique. The main contributions of the present work are twofold: (a) an improved rheological Bingham model where solid fraction concentration can change as solids are entrained by the current and (b) implementation of boundary conditions describing the injection process of water from channel weirs into the domain. The model has been applied to the case of Lo Wai debris flood (Hong Kong, August 2005). Numerical results obtained with the proposed model are in reasonable agreement with field observation.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainBIA2016-76253-PMINECOUnspecifiedModelización avanzada de deslizamientos de ladera

More information

Item ID: 67009
DC Identifier: https://oa.upm.es/67009/
OAI Identifier: oai:oa.upm.es:67009
DOI: 10.1680/jgeot.17.P.267
Official URL: https://www.icevirtuallibrary.com/doi/full/10.1680/jgeot.17.P.267
Deposited by: Memoria Investigacion
Deposited on: 11 May 2021 14:33
Last Modified: 11 May 2021 14:33
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