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Geological Characteristics and Risk Assessment of Yinshan Gully Debris Flow in Zhouqu County

Date: 2017-09-25      View counts: 383    

Label:

Language
Chinese
Author
Lv qiuping; Shi hongfei
Journal
GANSU WATER RESOURCES AND HYDROPOWER TECHNOLOGY
Class
Post-disaster assessment
Year
2015
Paper Keyword
Yinshan ditch; debris flow; risk assessment
Abstract
The Yinshangou debris flow gully in the town of Fengzhe County, Zhouqu County is located in the southwest side of Fengding New District, Zhouqu County, the main channel length is 2.3 km, the terrain is narrow, the steep valley is deep and the gully is developed and the cutting is strong. "V" shape, is more serious damage to the debris flow gully. The formation conditions, development characteristics and fluid characteristics of debris flow were identified by investigation and investigation, and the debris flow rate was 1.65 t / m3, and the debris flow rate (1%) was determined by the combination of field test and sampling indoor test. For the 55.34 m3 / s, Yinshan ditch solid material out of a maximum of 18,500 m3 and other debris flow characteristics, to identify the Yinshan ditch debris flow gully is like porridge, is a heavy rain, landslide debris flow, prone to ease Hair, the scale is medium, the frequency of high frequency, the formation of debris flow of solid material supply to landslides, slope erosion erosion mainly.

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