Abrasion Behavior and Anti-Wear Measures of Debris Flow Drainage Channel with Large Gradient
文献类型：期刊论文
| 作者 | Yang Dongxu1,2,3 ; You Yong1; Zhao Wanyu1; Huang Hai3; Sun Hao1,2; Liu Yang1,2
|
| 刊名 | WATER
 |
| 出版日期 | 2020 |
| 卷号 | 12期号:7页码:2105 |
| 关键词 | debris flow drainage channel large gradient energy dissipation scour and abrasion |
| DOI | 10.3390/rs12132105 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Debris flow gullies have high potential energy and geomorphic characteristics including a steep longitudinal slope and abundant loose material sources. They often experience debris flow with a strong impact force and a large instantaneous flow. Drainage engineering measures are most commonly used for mitigation in these gullies. However, the abrasion of drainage channels with large gradients (DCLG) is complex and strong because of the high-speed flushing of debris. In this study, the abrasion behavior of debris flow in DCLG is analyzed based on the kinematic characteristics and the theory of composite abrasive wear. Energy dissipation and anti-wear measures are suggested, and their effects are summarized with reference to a case study and in situ observation. The results show that there are four main types of wear morphology in drainage channels. The abrasion system of drainage channels shows the characteristics of system dependency, time dependency and multidisciplinary coupling. Energy dissipation and anti-wear measures include prefabricated reinforced concrete boxes as substrate, transverse roughening belts, adding a wear-resistant admixture, etc. The flow velocity of the debris flow is reduced by 5.7-37.1% after passing through the energy dissipation section. The distribution of abrasion and the mud depth show that the variation trend of the flow velocity in the channel is acceleration -> deceleration -> reacceleration. According to tracking observations during two flood seasons, the energy dissipation and anti-wear measures are the most effective. |
| 电子版国际标准刊号 | 2072-4292 |
| 语种 | 英语 |
| WOS记录号 | WOS:000550591500001 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/35363]  |
| 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, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Geol Sci, Inst Explorat Technol, Chengdu 611734, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Yang Dongxu,You Yong,Zhao Wanyu,et al. Abrasion Behavior and Anti-Wear Measures of Debris Flow Drainage Channel with Large Gradient[J]. WATER,2020,12(7):2105. |
| APA | Yang Dongxu,You Yong,Zhao Wanyu,Huang Hai,Sun Hao,&Liu Yang.(2020).Abrasion Behavior and Anti-Wear Measures of Debris Flow Drainage Channel with Large Gradient.WATER,12(7),2105. |
| MLA | Yang Dongxu,et al."Abrasion Behavior and Anti-Wear Measures of Debris Flow Drainage Channel with Large Gradient".WATER 12.7(2020):2105. |
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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