- 责任者：Wang Xiaoqun (State Key Laboratory of Geohazard Prevention and Geoenvironment Protection ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Shen Junhui
- 刊名：Journal of Chengdu University of Technology
- 出版年：2011
- 卷期：38(4)
- 关键词：泥石流 ; debris flows ; 工程地质条件 ; engineering geological conditions ; 四川 ; Sichuan Province
- 页码：p.422-429
- 图表：3 illus., 5 tables, 12 refs/
- 分类号：1702
- issnNo：ISSN1671-9727
- isbnNo：CN51-1634/N
The prediction of the debris flow disaster prevention for the project is of important practical significance. Taking the Yanwangqu ditch debris flow on the west side in the Partridge Hill Tunnel of Sichuan for example and using the field investigation method, this paper studies the basic characteristics and the formation of debris flow conditions in detail. Based on the formation mechanism and evolution of the debris flow, two methods (the extent of debris flow-prone and debris flow risk alone ditch) are used to predict the debris flow. The results show that the Yanwangqu main gully debris flow is still the possibility of the outbreak, and the most likely way is caused by the outbreak of the upper basin tributary debris flow. The risk is mild to moderate outbreak degree and moderate risk of debris flow. The Yanwangqu tributary debris flow (the second tributary) will more likely outbreak. It will be the moderate to easy outbreak degree and moderate risk of debris flow.