Laserfiche WebLink
<br />Velocity "Description Velocity Typical - <br />Class (mm/sec) Velocity <br />T <br />ble 3 <br />S <br /> a <br />- <br /> Definition of Probable Destructive Significance of Landslides of Different <br />7 Extremely VeloatyClasses <br /> Rapid <br /> 5x103 5 m/sec LSNDSLIDE <br /> VELOCITY <br />6 Very Rapid CI,q~ PRGBABLE DEStxvctrvE SIGNIFICANCE <br /> Sx 101 3 m/min 7 Catastrophe of major violence; buildings destoyed by <br /> impact of displaced material; many deaths; escape unlikely <br />S Rapid 6 Some lives los veloci too <br />q c9 great to permit all persons to <br /> Sx1D'1 1.6 m/hr ~ escape <br /> 5 , Escape evacuation possible; stmctures, possessions, and <br />4 Moderate equipmentdes[royed <br /> Sx 10'3 - 13 m/month ~ 4 - Some temporary and insensitive scuctures can be <br /> 1.42 Ft/day temporarily maintained - <br />3 Slow 3 Remedial construction can be undertaken during <br /> movement; insensitive structures can be maintained with <br /> Sx 10"S 1.6 m/year frequent maintenance work if total movement is not lazge <br /> .14 Ft/day during a partiadar acceleration phase <br />2 Very Siaw <br />2 <br />Some permanent scuctures undamaged by movement <br /> 10"7 <br />S mf <br />ear <br />16 1 - Impetceptible.without instruments, constmction possible <br /> x y <br />m - <br /> .00014 Ft/day <br />~ with precautions <br />1 Extremely ~ _ _ <br /> Stow <br />~ble 3-6 <br />~ mples of Landslide Velodty and Damage <br />LANDSLmE LANDSLIDE - EsrmuTED - ~ . <br />VELOCCIY NAME OR LANDSLIDE <br />GLASS LOCATION REFERIIdCE ~ VELOCITY DAMAGE <br />7 Elm Heim (1932) 70 m/sec <br />7 Goklau Heim (1932) 70 m/sec <br />7 Jupille Bishop (1973) 31 mJsec <br />7 Frank McConnell and Brack (1904) 28 m/sec <br />7 Vaiont Mueller (1964) 25 m/sec <br />7 Ikuta Engineering News Retard (1971) 18 m/sec <br />7 St Jean Vianney Tavenas et aL (1971) 7 m/sec <br />6 Aberfan Bishop (1973) 45 m/sec <br />5 Panama Canal Cross (1924) 1 m/min <br />4 Handlova Zaruba and Mencl (1969) 6 m/daq <br />3 Schudets Huder(1976) 10 mJyeaz <br />3 Wind Mountain Palmer (1977) 10 m/year <br /> <br />2 Lugnez Huder (1976) . 03T m/year <br />2 Licde Smoky Thomson and Hayley (1975) 0.25 m/year <br />2 IUosters Haefeli (1965) 0.02 m/yeaz <br />• <br />2 Ft Peck Spillway Wilson (1970) 0.02 m%year <br />115 deaths <br />457 deaths <br />11 drachs, ha~se<de~nyed <br />70 deaths <br />1,900 deaths by indirect damage <br />15 deaths, equipment destroyed <br />14 deaths, scuctures destroyed <br />144 deaths, some buildings <br />damaged <br />Equipment capped, people <br />escaped <br />150 houses destroyed, complete <br />evacuation <br />Road maintained with difficulty <br />Road and railway require frequent <br />maintenance, buildings.adjusted <br />periodicallq <br />Six villages an slope undisturbed <br />Bridge protected by slip joint <br />Tunnel maintaiaed, bridge <br />protected by slip joint <br />Movements unacceptable, <br />slooe fla¢ened <br />Figure 6 <br />LANDSLIDE VELOCITY CLASS CHARTS <br />