Application of flexible ring net barriers technology for debris flow control in San Martin torrent – Ayacucho - Peru

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Joel Oré Iwanaga

Wednesday 1 july 2015

12:39 - 12:42h at North America (level 0)

Themes: (T) Extreme events, natural variability and climate change, (ST) Hydrological extremes: floods and droughts, Poster pitches

Parallel session: Poster pitches: 9I. Extreme - Flood Drought

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In December 2009 in Ayacucho, heavy rainfall were recorded in Killari and Emadi stations, with a time interval of 1 minute, reaching intensities of the order of 182.80 mm/hr and 164.60 mm/hr and total rainfall of 52.80 mm and 34.00 mm in just 115 minutes, respectively, the same that caused the transit of the excessive hydrograph generating the transport of mud and stones to the historic downtown on San Martin Avenue. In the present investigation the model FLOW2D is used, which will determine the volume of sediment transport, allowing determine the spacing of flexible barriers along the torrent San Martin.