Numerical Modeling of Debris Flow during a Rainfall Induced Landslide at Malin in India
Publication: Geo-Extreme 2021
ABSTRACT
On 30th July 2014, a devastating rainfall induced landslide happened in Malin located 110 km from Pune in West Maharashtra (India) wiping out an entire village along with a school building and causing nearly 160 casualties. The debris flow from the rainfall at Malin is numerically modeled by distinct element analysis (DEM) using the Particle Flow Code (PFC2D) computer software. The results of the numerical analysis in terms of the extent of the debris flow, depth of debris at different locations, movement of debris from different locations, and velocity of the debris flow are presented and compared with the information available from field measurements and observations. A reasonably good match between the numerical results and the field observations indicates that the developed numerical methodology may be effectively used to predict the areas affected by debris flows during a landslide.
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Geo-Extreme 2021
Pages: 129 - 138
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© 2021 American Society of Civil Engineers.
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Published online: Nov 4, 2021
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