| Self－organization criticality of debris flow rheology |
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| 引用本文： | WANGYuyi JANChyandeng CHENXiaoqing HANwenliang. Self－organization criticality of debris flow rheology[J]. 科学通报(英文版), 2003, 48(17): 1857-1861. DOI: 10.1007/BF03184068 |
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| 作者姓名： | WANGYuyi JANChyandeng CHENXiaoqing HANwenliang |
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| 作者单位： | WANG Yuyi,Chen Xiaoqing(Chengdu Institute of Mountain Hazards & Environment, Chinese Academy of Sciences (CAS), Donchuan Debris Flow Observation & Research Station, CAS, Chengdu 610041, China);JAN Chyandeng(Department of Hydraulics & Ocean Engineering, Cheng Kung University, Tainan 70101, Taiwan, China);Han Wenliang(Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, China) |
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| 基金项目： | 中国科学院资助项目，国家自然科学基金 |
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| 摘 要： | Based on the viewpoint of stress and strain serf-organization criticality of debris flow mass, this paper probes into inter-nonlinear action between different factors in the thixotropic liquefaction system of loose clastic soil on slope to make clastic soil in slope develop naturally towards critical stress status, and slope debris flow finally occurs under trigging by rainstorm. Also according to observation and analysis of self-organization criticality of sediment runoff system of viscous debris flow surges in ravines and power relation between magnitude and frequency of debris flows,this paper expounds similarity of the self-organized structure of debris flow mass. The self-organized critical system is a weak chaotic system. Debris flow occurrences can be predicted accordingly by means of observation at certain time scale and analysis of self-organization criticality of magnitude, frequency and time interval of debris flows.
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| 关 键 词： | 泥石流 流变学 自组织危险程度 触变液化系统 |
| 收稿时间： | 2002-07-08 |
| 修稿时间： | 2003-02-18 |
Self-organization criticality of debris flow rheology |
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| Yuyi Wang,Chyandeng Jan,Xiaoqing Chen,Wenliang Han. Self-organization criticality of debris flow rheology[J]. Chinese science bulletin, 2003, 48(17): 1857-1861. DOI: 10.1007/BF03184068 |
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| Authors: | Yuyi Wang Chyandeng Jan Xiaoqing Chen Wenliang Han |
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| Abstract: | Based on the viewpoint of stress and strain self-organization criticality of debris flow mass, this paper probes into inter-nonlinear action between different factors in the thixotropic liquefaction system of loose clastic soil on slope to make clastic soil in slope develop naturally towards critical stress status, and slope debris flow finally occurs under trigging by rainstorm. Also according to observation and analysis of self-organization criticality of sediment run-off system of viscous debris flow surges in ravines and power relation between magnitude and frequency of debris flows, this paper expounds similarity of the self-organized structure of debris flow mass. The self-organized critical system is a weak chaotic system. Debris flow occurrences can be pre-dicted accordingly by means of observation at certain time scale and analysis of self-organization criticality of magni-tude, frequency and time interval of debris flows. |
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| Keywords: | debris flow self-organization criticality prediction. |
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