5 landslide causes and triggering mechanisms€¦ · Landslide Causes and Triggering Mechanisms...
Transcript of 5 landslide causes and triggering mechanisms€¦ · Landslide Causes and Triggering Mechanisms...
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LANDSLIDE CAUSES AND TRIGGERING
MECHANISMS
Addis Ababa University, EthiopiaOctober / November 2013
Jan Novotný
Charles University in Prague, Faculty of Science, Czech Republic ARCADIS CZ a.s., division Geotechnika, Czech Republic
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Landslide Causes and Triggering Mechanisms
Highland, L.M., and Bobrowsky, Peter, 2008, The landslide handbook—A guide to understanding landslides: Reston, Virginia, U.S. Geological Survey Circular 1325, 129 p.
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Landslide Causes and Triggering Mechanisms
D8-LOVOSICEPhoto: J. Novotný
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Landslide Causes and Triggering Mechanisms
D8-LOVOSICED8-LOVOSICEPhoto: J. Novotný
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Landslide Causes and Triggering Mechanisms
D8-LOVOSICED8-LOVOSICEPhoto: J. Novotný
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Landslide Causes and Triggering Mechanisms
D8-LOVOSICED8-LOVOSICEPhoto: J. Novotný
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Landslide Causes and Triggering Mechanisms
D8-LOVOSICED8-LOVOSICEPhoto: J. Novotný
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Landslide Causes and Triggering Mechanisms
D8-LOVOSICED8-LOVOSICE
PrecipitationHRADEC U STODA
Switzerland
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Landslide Causes and Triggering Mechanisms
D8-LOVOSICED8-LOVOSICE
Precipitation
Photo: M.Šedivý
HRADEC U STODA
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Landslide Causes and Triggering Mechanisms
D8-LOVOSICED8-LOVOSICE
PrecipitationHRADEC U STODA
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Landslide Causes and Triggering Mechanisms
Precipitation x hydrogeological regime
Třebenice landslide (Cretaceous claystones)
After J. Novotný 2005
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Landslide Causes and Triggering Mechanisms
SeismicityHRADEC U STODA
Anchorage, Alaska 1964
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Landslide Causes and Triggering Mechanisms
Weathering
Photo: J. Novotný
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Landslide Causes and Triggering Mechanisms
Tectonic disturbance (relict joints)Tectonic disturbance (relict joints)Tectonic disturbance (relict joints)Tectonic disturbance (relict joints)Brazil, Rio de Janeiro vicinity
saprolites
Photo: J. Novotný
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Landslide Causes and Triggering Mechanisms
Brazil, Rio de Janeiro vicinity
saprolitesTectonic disturbance (relict joints)Tectonic disturbance (relict joints)Tectonic disturbance (relict joints)Tectonic disturbance (relict joints)
Photo: J. Novotný
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Landslide Causes and Triggering Mechanisms
Saprolites without relict jointsSaprolites without relict jointsSaprolites without relict jointsSaprolites without relict jointsBrazil, Rio de Janeiro vicinity
Photo: J. Novotný
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Landslide Causes and Triggering Mechanisms
Karlovy Vary
J. Novotný (2009)
TectonicTectonicTectonicTectonic / / / / gravitationalgravitationalgravitationalgravitational disturbance (relict joints)disturbance (relict joints)disturbance (relict joints)disturbance (relict joints)
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Landslide Causes and Triggering Mechanisms
Karlovy VaryTectonic / gravitationalTectonic / gravitationalTectonic / gravitationalTectonic / gravitational disturbance (relict joints)disturbance (relict joints)disturbance (relict joints)disturbance (relict joints)
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Landslide Causes and Triggering Mechanisms
Karlovy VaryTectonic / gravitationalTectonic / gravitationalTectonic / gravitationalTectonic / gravitational disturbance (relict joints)disturbance (relict joints)disturbance (relict joints)disturbance (relict joints)
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Landslide Causes and Triggering Mechanisms
Karlovy VaryTectonicTectonicTectonicTectonic / / / / gravitationalgravitationalgravitationalgravitational disturbance (relict joints)disturbance (relict joints)disturbance (relict joints)disturbance (relict joints)
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Landslide Causes and Triggering Mechanisms
Highland, L.M., and Bobrowsky, Peter, 2008, The landslide handbook—A guide to understanding landslides: Reston, Virginia, U.S. Geological Survey Circular 1325, 129 p.
![Page 22: 5 landslide causes and triggering mechanisms€¦ · Landslide Causes and Triggering Mechanisms Highland, L.M., and Bobrowsky, Peter, 2008, The landslide handbook—A guide to understanding](https://reader034.fdocuments.in/reader034/viewer/2022052008/601cb075111b4a782e53ee4f/html5/thumbnails/22.jpg)
Landslide Causes and Triggering Mechanisms
4m12m
Photo: J. Novotný
Undercutting of the toe of the slope
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Landslide Causes and Triggering Mechanisms
Load at the top of the slope
Photo: J. Novotný
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Landslide Causes and Triggering Mechanisms
Load at the top of the slope
J. NovotnýPhoto: J. Novotný
Photo: J. Novotný
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Landslide Causes and Triggering Mechanisms
Piping by rapid opening of the cut in fully saturat ed sands
Photo: J. Novotný