| Debris flow entrainment rates in non-uniform channels with convex and concave slopes | |
Li, Pu1,2,3,4 ; Hu, Kaiheng2,3,4; Wang, Xiekang5
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| 2018 | |
| Source Publication | JOURNAL OF HYDRAULIC RESEARCH
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| ISSN | 0022-1686 |
| EISSN | 1814-2079 |
| Volume | 56Issue:2Pages:156-167 |
| Subtype | Article |
| Contribution Rank | 1 |
| Abstract | 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. |
| Keyword | Concave slopes convex slopes debris flow entrainment impact erosion non-uniform channel |
| DOI | 10.1080/00221686.2017.1313321 |
| Indexed By | SCI |
| WOS Keyword | RAINFALL-INDUCED LANDSLIDES ; 3-DIMENSIONAL TERRAIN ; SNOW AVALANCHES ; GRANULAR AVALANCHES ; EARTHQUAKE ; EROSION ; MODEL ; IMPACT ; RUNOUT ; MOTION |
| Language | 英语 |
| Quartile | 3区 |
| Funding Project | National Natural Science Foundation of China[41371039] ; National Basic Research Program of China (973 Program)[2015CB452704] ; Open Foundation of State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University[SKHL1426] |
| TOP | 否 |
| WOS Research Area | Engineering ; Water Resources |
| WOS Subject | Engineering, Civil ; Water Resources |
| WOS ID | WOS:000428198200002 |
| Funding Organization | National Natural Science Foundation of China ; National Basic Research Program of China (973 Program) ; Open Foundation of State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University |
| Publisher | TAYLOR & FRANCIS LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/22982 |
| Collection | 山地灾害与地表过程重点实验室 |
| Corresponding Author | Hu, Kaiheng |
| Affiliation | 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 |
| First Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Corresponding Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Recommended Citation 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. |
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| Debris flow entrainm（2331KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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