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[1]HUANG Hai,SHI Shengwei,LIU Jiankang.Characteristics and Countermeasures of Debris Flow of Ganqiao Gully in the Upper Dadu River[J].Research of Soil and Water Conservation,2015,22(05):354-357.

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Characteristics and Countermeasures of Debris Flow of Ganqiao Gully in the Upper Dadu River

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 05 Page number: 354-357 Column: Public date: 2015-10-28

Title:: Characteristics and Countermeasures of Debris Flow of Ganqiao Gully in the Upper Dadu River

Author(s):: HUANG Hai^1,2, SHI Shengwei^1,2, LIU Jiankang^1,2; 1. Institute of Exploration Technology, CAGS, Chengdu 611734, China;
2. Technical Center for Geological Hazard Prevention and Control, CGS, Chengdu 611734, China

Keywords:: debris flow; activity characteristics; microtopography; evolutionary process; countermeasures

CLC:: P642

DOI:: -

Abstract:: Based on investigation of the formation conditions and activity characteristics of debris flow by surveys, researches were conducted to examine the hazard causes and the motion parameters, and countermeasures for debris flow mitigation were also proposed. Analysis suggested that debris flows were characterized by high frequency, high speed, short process, large-size and severe risks. And the scale of disaster was influenced by microtopography of the gully. In normal situation, the frequencies and scales of debris flows can decrease gradually in Ganqiao gully, but, because of the evolutionary process which can amplify the scale of debris flow, large-size disaster can occur. In order to mitigate this debris flow, the countermeasures such as building check dams, channel, and warning system of Baigayi landslide wear put forward in this paper.

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