Debris flow entrainment rates in non-uniform channels with convex and concave slopes
文献类型：期刊论文
| 作者 | Li, Pu1,2,3,4 ; Hu, Kaiheng2,3,4; Wang, Xiekang5
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| 刊名 | JOURNAL OF HYDRAULIC RESEARCH
 |
| 出版日期 | 2018 |
| 卷号 | 56期号:2页码:156-167 |
| 关键词 | Concave slopes convex slopes debris flow entrainment impact erosion non-uniform channel |
| ISSN号 | 0022-1686 |
| DOI | 10.1080/00221686.2017.1313321 |
| 英文摘要 | Channel topography plays an important role in debris flow entrainment processes. Field observations and flume experiments have demonstrated two notable erosion effects: abrasion on convex slopes resulting from layer-by-layer shearing and impact erosion on concave slopes. Most existing formulas for debris flow entrainment rates are derived from the uniform slope assumption and do not account for the two erosion effects. In order to take abrasion and impact erosion into consideration, this study incorporated two channel curvature functions into the entrainment formula that is based on equilibrium between flow frictional forces and basal resistance forces. The two functions control the effects of entrainment on different slope types and are based on empirical relationships with curvature obtained in flume experiments. The revised formula provides a unified procedure for debris flow entrainment rates in non-uniform channels. |
| 语种 | 英语 |
| WOS记录号 | WOS:000428198200002 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 源URL | [http://ir.imde.ac.cn/handle/131551/22981]  |
| 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 |
| 通讯作者 | Hu, Kaiheng |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China 4.Minist Water Conservancy & Power, Chengdu 610041, Sichuan, Peoples R China 5.Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Pu,Hu, Kaiheng,Wang, Xiekang. Debris flow entrainment rates in non-uniform channels with convex and concave slopes[J]. JOURNAL OF HYDRAULIC RESEARCH,2018,56(2):156-167. |
| APA | Li, Pu,Hu, Kaiheng,&Wang, Xiekang.(2018).Debris flow entrainment rates in non-uniform channels with convex and concave slopes.JOURNAL OF HYDRAULIC RESEARCH,56(2),156-167. |
| MLA | Li, Pu,et al."Debris flow entrainment rates in non-uniform channels with convex and concave slopes".JOURNAL OF HYDRAULIC RESEARCH 56.2(2018):156-167. |
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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