Discriminance of the Possibility of Debris-Flow Blocked the Main River by Grey Correlation Degree—a case strudy on the upper reaches of the Min River
Intensity and range of damage caused by debris-flow which blocks up river are much larger than debris-flow which doesnt block up river, study of this type of debris-flow may provide reference for evaluation, region partition of degree of risk, prevention and cure and etc of debris-flow disaster, and possesses important significance in practice of disaster mitigation and prevention. Grey correlation degree analysis, a potent tool for disposal of uncertain system of small sample or poor information, is applied to analyze possibility of river block by debris-flow in this paper, and four debris-flow ravines of riverblock type, each two debris-flow ravines of block type and nonblock type at upper reaches of the Min River are selected as sample. A typical debris-flow ravine of river-block type is selected with its characteristic parameter as canonical sequence, degree of association between characteristic parameter and canonical sequence of other sample of debris-flow ravine is calculated. The result manifests basically that the higher degree of river block by debris-flow ravine, the more grey correlation degree with canonical sequence, therefore possibility of river block by debris-flow can be analyzed by grey correlation degree.
ZHANG Jinshan SHEN Xingju
Key Laboratory of Mountain Hazard and Surface Processes,Institute of mountain Hazards and Environmen College of Tourism and History Culture Southwest University for Nationalities Chengdu, China
国际会议
International Conference on Management and Service Science(2011年第五届管理与服务科学国际会议 MASS 2011)
武汉
英文
1-4
2011-08-12（万方平台首次上网日期，不代表论文的发表时间）