Experimental investigation of failure modes and breaching characteristics of natural dams
文献类型：期刊论文
| 作者 | Jiang, Xiangang1,2,3; Wei, Yunwei1,2; Wu, Lei1,2; Lei, Yu3 |
| 刊名 | GEOMATICS NATURAL HAZARDS & RISK
 |
| 出版日期 | 2018 |
| 卷号 | 9期号:1页码:33-48 |
| 关键词 | Natural dam failure mode breaching time |
| ISSN号 | 1947-5705 |
| DOI | 10.1080/19475705.2017.1407367 |
| 英文摘要 | The failure mode and breaching time of a natural dam are affected by many factors. To comprehensively analyse the effects of these factors on dam failure modes, 159 runs of laboratory experiments were performed with 11 channel bed slopes, 4 dam geometric shapes, 3 construction materials, and 8 inflow rates. Through these experiments, two types of failure modes were identified. The results show that for lower permeability coefficients of the dam material, the overtopping failure mode will more likely occur. When the permeability coefficient and angle between the downstream slope and the horizontal plane are both high, slope failure occurs. When other conditions are unchanged, an increase in the channel bed slope and a decrease in the inflow discharge will result in slope failure. As the channel bed slope increases, the failure mode will change from the overtopping failure mode to the slope failure mode and back to the overtopping failure mode. A new parameter, Cig, (an abbreviation corresponding to channel, inflow, and geometric) is defined to reflect the influences of these factors on breaching time. Under the two types of failure modes, breaching time is an exponential function of the lake volume and is a power function of Cig. |
| 语种 | 英语 |
| WOS记录号 | WOS:000428252700003 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 源URL | [http://ir.imde.ac.cn/handle/131551/22872]  |
| 专题 | 中国科学院水利部成都山地灾害与环境研究所 |
| 通讯作者 | Jiang, Xiangang |
| 作者单位 | 1.Sichuan Agr Univ, Dept Geotech Engn, Coll Civil Engn, Chengdu, Sichuan, Peoples R China 2.Sichuan Agr Univ, Sichuan Higher Educ Engn Res Ctr Disaster Prevent, Chengdu, Sichuan, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Dept Debris Flow, Key Lab Mt Hazards & Surface Proc, Chengdu, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Xiangang,Wei, Yunwei,Wu, Lei,et al. Experimental investigation of failure modes and breaching characteristics of natural dams[J]. GEOMATICS NATURAL HAZARDS & RISK,2018,9(1):33-48. |
| APA | Jiang, Xiangang,Wei, Yunwei,Wu, Lei,&Lei, Yu.(2018).Experimental investigation of failure modes and breaching characteristics of natural dams.GEOMATICS NATURAL HAZARDS & RISK,9(1),33-48. |
| MLA | Jiang, Xiangang,et al."Experimental investigation of failure modes and breaching characteristics of natural dams".GEOMATICS NATURAL HAZARDS & RISK 9.1(2018):33-48. |
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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