Title: Study on Characteristics of Accumulation Fan of“8.13”Extraordinarily Debris Flow in Longchi Area
Abstract:In order to understand the harm level of debris flow accumulation fan in Longchi area of Dujiangyan City, we get geometric data of debris flow accumulation fan with field measurement of 36ditches whic...In order to understand the harm level of debris flow accumulation fan in Longchi area of Dujiangyan City, we get geometric data of debris flow accumulation fan with field measurement of 36ditches which has broken out debris flow,analyze its causes and characteristics.And then the stress characteristics of debris flow accumulation fan is studied during the process of accumulation.Finally,it obtains the prediction model of deposition length,thickness and stacking width of debris flow accumulation fan.Meanwhile,the calculation of yield stress of debris flow in this area is about 241 Pa,the silting depth of debris flow in gully is about 2.4m,which consists with the filed observation data.Thus,it provides reference for debris flow hazards risk assessment in strong earthquake zone.Read More
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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