Title: Debris Flow Deposition Prediction based on Numerical Simulation: a Case study of Mozi Gully, Wenchuan County, Sichuan Province, China
Abstract:Wenchuan Earthquake triggered large numbers of collapses and landslides which provided abundant loose solid materials for debris flow. Debris flows were very active and caused great damages in the ear...Wenchuan Earthquake triggered large numbers of collapses and landslides which provided abundant loose solid materials for debris flow. Debris flows were very active and caused great damages in the earthquake-hit area. Many important facilities had been constructed on debris flow alluvial fan and thus will be threatened by debris flows inevitably after the post-disaster reconstruction. Therefore, it is necessary to study the deposition prediction which can provide basis for the prevention and reduction of debris flows. This paper presented a case study on the debris flow deposition prediction based on numerical simulation by using Kanako 2D. The deposition ranges were simulated under the 1%, 2% and 10% debris flow frequencies. The simulation results show that debris flows will continue to block the Min River and raise the water level of the upstream barrier lake. A channel was suggested to be constructed on the alluvial fan to change the debris flow direction and avoid blocking the Min River based on the simulation results.Read More
Publication Year: 2012
Publication Date: 2012-10-01
Language: en
Type: article
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