Analysis of Benefits of Debris Flow Control Projects in Southwest Mountain Areas of China
详细信息
- 责任者：Chen Ningsheng (Key Lab. of Mountain Hazards and Surface Process ; Institute of Mountain Hazards and Environment ; Chinese Academy of Sciences ; Chengdu 610041 ; China) ; Zhou Haibo
- 刊名：Journal of Chengdu University of Technology
- 出版年：2013
- 卷期：40(1)
- 关键词：泥石流 ; debris flows ; 西南地区 ; Southwest China
- 页码：p.50-58
- 图表：illus., 9 tables, 11 refs.
- 分类号：1800
- issnNo：ISSN1671-9727
- isbnNo：CN51-1634/N
摘要
The main features of most small watersheds in the southwest mountain areas of China include special landform,abundant rainfall and rich loose solid materials,thereby debris flows in these areas are always high frequency characteristics and natural calamities are extraordinary serious. To combine geotechnical engineering with bioengineering is a main control measure.The direct effectiveness of geotechnical engineering is to retain sediments and reduce the debris flow magnitude,and the indirect effectiveness of geotechnical engineering is to reduce bed erosion,keep the slope stable,reduce gully gradients,the debris flow velocity and peak discharge,the debris flow density,and increase the basal level of erosion,etc.
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