Determination of the suspension competence of debris flows based on particle size analysis
文献类型：期刊论文
| 作者 | Yang, Hong-juan1,2 ; Wei, Fang-qiang2; Hu, Kai-heng2; Wang, Chuan-chang2
|
| 刊名 | INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH
 |
| 出版日期 | 2014-03-01 |
| 卷号 | 29期号:1页码:73-81 |
| 关键词 | Debris flow Suspension competence Particle size analysis Critical particle size Particle suspension mechanism |
| ISSN号 | 1001-6279 |
| 通讯作者 | Fang-qiang WEI |
| 英文摘要 | The determination of the critical particle size between solid and fluid phases, i.e., the suspension competence, is fundamental for debris flow. A method for determining suspension competence based on particle size analysis is presented in this paper. Suspension competence of static experimental water-debris mixtures prepared with the sediment of Jiangjia Gully is 0.025 mm if the bulk density is less than 1,800 kg m-3 and it increases with bulk density of more concentrated mixtures. Suspension competence of natural debris flows in Jiangjia Gully increases exponentially with the bulk density. These two data sets are compared in order to understand the suspension mechanism It is concluded that turbulence may play a leading role in particle suspension in non-viscous and sub-viscous debris flows, while in viscous debris flows both matrix strength and excess pore water pressure play important roles. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| 学科主题 | 自然地理学 |
| 类目[WOS] | Environmental Sciences ; Water Resources |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Water Resources |
| 关键词[WOS] | GRANULAR-MATERIALS |
| 收录类别 | SCI |
| 原文出处 | http://www.sciencedirect.com/science/article/pii/S1001627914600238 |
| 语种 | 英语 |
| WOS记录号 | WOS:000335125400007 |
| 公开日期 | 2014-12-15 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/7549]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Hong-juan,Wei, Fang-qiang,Hu, Kai-heng,et al. Determination of the suspension competence of debris flows based on particle size analysis[J]. INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH,2014,29(1):73-81. |
| APA | Yang, Hong-juan,Wei, Fang-qiang,Hu, Kai-heng,&Wang, Chuan-chang.(2014).Determination of the suspension competence of debris flows based on particle size analysis.INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH,29(1),73-81. |
| MLA | Yang, Hong-juan,et al."Determination of the suspension competence of debris flows based on particle size analysis".INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH 29.1(2014):73-81. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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