Landslide Generated Tsunami
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Landslide Generated Tsunami Dr. Hermann M. Fritz Georgia Institute of Technology, Savannah
Transcript of Landslide Generated Tsunami
Experimental set-up
• pneumatic landslide generator ◊ controlled initial conditions• 2 laser distance sensors LDS ◊ slide profiles ξ(t)• 7 capacitance wave gauges CWG ◊ wave profiles η(t)• digital particle image velocimetry PIV ◊ velocity vector fields vp
Slide-Granulate (PP-BaSO4)dg = 4 mmρg = 2.64 t/m3
n = 39 %ρs = 1.62 t/m3
φ' = 43°δ = 24° IGT
Slide profiles
raw PIV-sequenceTotal area of view (AOV) = 1.6 m � 0.8 m
2 adjacent AOV´s from repeated runs mounted
F = 1.9, ms = 108 kg, h = 450 mm
Initial Mechanisms ofTsunamigenic Landslides
Shear Band Propagation
0 l
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lf
d v0
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τ
p
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0 1 2 3 4 5 6 7 8r δ
τ, kPa
δ, mm
r
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Puzrin and Germanovich, GT (2004)