Energy Dissipation of Debris Flows over Stepped Gradients and Erodible Beds in Open Channel
文献类型：期刊论文
| 作者 | Li, Pu1; Hu, Kaiheng2,3 ; Zhao, Jinheng
|
| 刊名 | JOURNAL OF HYDRAULIC ENGINEERING
 |
| 出版日期 | 2020-07-01 |
| 卷号 | 146期号:7页码:6020008 |
| 关键词 | Energy dissipation Debris flow Erodible bed Entrainment Velocity profile Stepped gradient |
| ISSN号 | 0733-9429 |
| DOI | 10.1061/(ASCE)HY.1943-7900.0001766 |
| 产权排序 | 2 |
| 通讯作者 | Hu, Kaiheng(khhu@imde.ac.cn) |
| 文献子类 | Article |
| 英文摘要 | Energy of debris flows in steep mountainous channels is mostly consumed by erosion, collision, and hydraulic jumps due to abrupt topographic changes. In this study, flume experiments were performed to study the energy dissipation of debris flows over stepped gradients and erodible beds. A power law relationship between the depth-averaged velocity and flow depth was used to calculate the kinetic energy of debris flows. The experimental data indicate that the energy loss of entrainment per unit volume of bed sediment has an approximately linear relationship with transition angle and porosity. The net resistance coefficient also demonstrates more energy dissipation when debris flows move downward on slopes with a greater gradient change. |
| 电子版国际标准刊号 | 1943-7900 |
| WOS关键词 | ENTRAINMENT |
| 资助项目 | National Natural Science Foundation of China[41371039] ; National Natural Science Foundation of China[41801002] ; 8.8 Jiuzhaigou Earthquake Stricken Area Ecological Disaster Prevention and Control of Key Scientific and Technological Support Project of Land and Resources Department of Sichuan Province[KJ-2018-23] |
| WOS研究方向 | Engineering ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000536104300004 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 资助机构 | National Natural Science Foundation of China ; 8.8 Jiuzhaigou Earthquake Stricken Area Ecological Disaster Prevention and Control of Key Scientific and Technological Support Project of Land and Resources Department of Sichuan Province |
| 源URL | [http://ir.imde.ac.cn/handle/131551/34768]  |
| 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.Northwest Univ, State Key Lab Continental Dynam, Dept Geol, Xian 710069, Shanxi, Peoples R China; 2.Elect Power Co Training Ctr, Dept Water Hydropower & Construct Engn, Chengdu 610072, Sichuan, Peoples R China 3.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China;Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China & Minist Water Conservancy & Power, Chengdu 610041, Sichuan, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Li, Pu,Hu, Kaiheng,Zhao, Jinheng. Energy Dissipation of Debris Flows over Stepped Gradients and Erodible Beds in Open Channel[J]. JOURNAL OF HYDRAULIC ENGINEERING,2020,146(7):6020008. |
| APA | Li, Pu,Hu, Kaiheng,&Zhao, Jinheng.(2020).Energy Dissipation of Debris Flows over Stepped Gradients and Erodible Beds in Open Channel.JOURNAL OF HYDRAULIC ENGINEERING,146(7),6020008. |
| MLA | Li, Pu,et al."Energy Dissipation of Debris Flows over Stepped Gradients and Erodible Beds in Open Channel".JOURNAL OF HYDRAULIC ENGINEERING 146.7(2020):6020008. |
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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