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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
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.
Landslide Causes and Triggering Mechanisms
D8-LOVOSICEPhoto: J. Novotný
Landslide Causes and Triggering Mechanisms
D8-LOVOSICED8-LOVOSICEPhoto: J. Novotný
Landslide Causes and Triggering Mechanisms
D8-LOVOSICED8-LOVOSICEPhoto: J. Novotný
Landslide Causes and Triggering Mechanisms
D8-LOVOSICED8-LOVOSICEPhoto: J. Novotný
Landslide Causes and Triggering Mechanisms
D8-LOVOSICED8-LOVOSICEPhoto: J. Novotný
Landslide Causes and Triggering Mechanisms
D8-LOVOSICED8-LOVOSICE
PrecipitationHRADEC U STODA
Switzerland
Landslide Causes and Triggering Mechanisms
D8-LOVOSICED8-LOVOSICE
Precipitation
Photo: M.Šedivý
HRADEC U STODA
Landslide Causes and Triggering Mechanisms
D8-LOVOSICED8-LOVOSICE
PrecipitationHRADEC U STODA
Landslide Causes and Triggering Mechanisms
Precipitation x hydrogeological regime
Třebenice landslide (Cretaceous claystones)
After J. Novotný 2005
Landslide Causes and Triggering Mechanisms
SeismicityHRADEC U STODA
Anchorage, Alaska 1964
Landslide Causes and Triggering Mechanisms
Weathering
Photo: J. Novotný
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
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
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
Landslide Causes and Triggering Mechanisms
Karlovy Vary
J. Novotný (2009)
TectonicTectonicTectonicTectonic / / / / gravitationalgravitationalgravitationalgravitational disturbance (relict joints)disturbance (relict joints)disturbance (relict joints)disturbance (relict joints)
Landslide Causes and Triggering Mechanisms
Karlovy VaryTectonic / gravitationalTectonic / gravitationalTectonic / gravitationalTectonic / gravitational disturbance (relict joints)disturbance (relict joints)disturbance (relict joints)disturbance (relict joints)
Landslide Causes and Triggering Mechanisms
Karlovy VaryTectonic / gravitationalTectonic / gravitationalTectonic / gravitationalTectonic / gravitational disturbance (relict joints)disturbance (relict joints)disturbance (relict joints)disturbance (relict joints)
Landslide Causes and Triggering Mechanisms
Karlovy VaryTectonicTectonicTectonicTectonic / / / / gravitationalgravitationalgravitationalgravitational disturbance (relict joints)disturbance (relict joints)disturbance (relict joints)disturbance (relict joints)
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.
Landslide Causes and Triggering Mechanisms
4m12m
Photo: J. Novotný
Undercutting of the toe of the slope
Landslide Causes and Triggering Mechanisms
Load at the top of the slope
Photo: J. Novotný
Landslide Causes and Triggering Mechanisms
Load at the top of the slope
J. NovotnýPhoto: J. Novotný
Photo: J. Novotný
Landslide Causes and Triggering Mechanisms
Piping by rapid opening of the cut in fully saturat ed sands
Photo: J. Novotný