The influence of materials on the breaching process of natural dams
文献类型：期刊论文
| 作者 | Jiang Xiangang1,2,3 ; Huang Jiahua4; Wei Yunwei1; Niu Zhipan5,6; Chen Fenghui1,2; Zou Zuyin1; Zhu Zhanyuan1
|
| 刊名 | LANDSLIDES
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 15期号:2页码:243-255 |
| 关键词 | Natural dams Materials Breaching process Breach |
| ISSN号 | 1612-510X |
| DOI | 10.1007/s10346-017-0877-9 |
| 英文摘要 | In this study, a series of natural dam overtopping laboratory tests are reported. In these tests, the effect of seven different sediment mixtures on the breaching process was investigated. According to the test results, three stages of the breaching process of natural dams made of different materials were observed. Backward erosion was the primary cause for the incising slopes. The effects of backward erosion became stronger with the larger fines contents of the materials. With an increase in the median diameter (d (50)) of particles, the breaching time became longer. However, the peak discharge became smaller. With an increase in the fines contents (p), the median diameter of the particles and the void ratio were changed, which resulted in a decrease in the breaching time and an increase in the peak discharge. The breaching time and peak discharge were more sensitive to the median diameter than to the fines contents. The relation between breach width and depth was found to follow a logistic function . The parameters zeta, k, and D (0) are defined by a linear relationship with the median diameter and fines content. A breach of the side slope occurred as a tensile failure when the fines contents of the materials were large; otherwise, shear failure occurred. Furthermore, when the materials had fewer fines contents, the volume of the collapsed breach side slope became larger. |
| 语种 | 英语 |
| WOS记录号 | WOS:000423999700005 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://ir.imde.ac.cn/handle/131551/20880]  |
| 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 | Jiang Xiangang |
| 作者单位 | 1.Sichuan Agr Univ, Coll Civil Engn, Chengdu 611830, Sichuan, Peoples R China 2.Sichuan Agr Univ, Sichuan Higher Educ Engn Res Ctr Disaster Prevent, Chengdu 611830, Sichuan, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610044, Sichuan, Peoples R China 4.Univ Duisburg Essen, Dept Civil Engn, D-47057 Duisburg, Germany 5.Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Sichuan, Peoples R China 6.China Three Gorges Projects Dev Co Ltd, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang Xiangang,Huang Jiahua,Wei Yunwei,et al. The influence of materials on the breaching process of natural dams[J]. LANDSLIDES,2018,15(2):243-255. |
| APA | Jiang Xiangang.,Huang Jiahua.,Wei Yunwei.,Niu Zhipan.,Chen Fenghui.,...&Zhu Zhanyuan.(2018).The influence of materials on the breaching process of natural dams.LANDSLIDES,15(2),243-255. |
| MLA | Jiang Xiangang,et al."The influence of materials on the breaching process of natural dams".LANDSLIDES 15.2(2018):243-255. |
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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