| Influence of Ice Content on the Run-Out of Rock-Ice Avalanches | |
| Language | 英语 |
| Qingqing Yang1; Zhiman Su2; Zhihao Li1 | |
| Corresponding Author | Zhiman Su |
| 2017 | |
| Source Publication | ADVANCING CULTURE OF LIVING WITH LANDSLIDES, VOL 2: ADVANCES IN LANDSLIDE SCIENCE |
| Author of Source | Mikos, M ; Tiwari, B ; Yin, Y ; Sassa, K |
| Pages | 587-591 |
| meeting | 4th World Landslide Forum |
| Conference Date | MAY 29-JUN 02, 2017 |
| Conference Place | Ljubljana |
| Country | SLOVENIA |
| Contribution Rank | 2 |
| Abstract | Rock-ice avalanches in cold high mountain areas can have an extremely high mobility and an enormous destructive potential. As a result of a warming climate, these catastrophic rock-ice avalanches and rock-ice avalanche induced secondary disasters significantly increase and thus have attracted much attention from researchers. Ice is often subject to a critical role to enhance the mobility of rock-ice avalanches. However, the role of ice during the propagation process of rock-ice avalanches has not been systematically investigated and its influencing mechanism on the typically extremely long run-out of such events is poorly understood. In this paper, a series of small flume tests was carried out to simulate the propagation process of rock-ice avalanches and to quantify the influence of ice content on the run-out of such events. Experimental results show that ice particles were involved in the front mass of mixtures of rock and ice particles during their whole movement. The involved granular ice significantly enhanced the mobility of these mixtures. With excess granular ice, however, the run-out decreased because ice particles bonded together to be larger ones and were difficult to involve inside the mass of granular avalanches. This indicates that the mixing of ice and rock particles played an important role to enhance the mobility of rock-ice avalanches. The smaller size ratio of ice particles and rock particles, the easier ice particles entered into the mass of the mixtures, the farther the mixtures moved. This work contributes to a better understanding of the role of granular ice in enhancing the mobility of rock-ice avalanches. |
| Keyword | Rock-ice avalanche Run-out Ice content Small flume test |
| DOI | 10.1007/978-3-319-53498-5_68 |
| ISBN | 978-3-319-53498-5; 978-3-319-53497-8 |
| Indexed By | SCI |
| WOS ID | WOS:000438665000068 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/23475 |
| Collection | 山地灾害与地表过程重点实验室 |
| Affiliation | 1.Southwest Jiaotong Univ, Sch Earth Sci & Environm Engn, Chengdu 610031, Sichuan, Peoples R China; 2.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China |
| Recommended Citation GB/T 7714 | Qingqing Yang,Zhiman Su,Zhihao Li. Influence of Ice Content on the Run-Out of Rock-Ice Avalanches[C]//Mikos, M, Tiwari, B, Yin, Y, Sassa, K,2017:587-591. |
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| File Name/Size | DocType | Version | Access | License | ||
| Influence of Ice Con（165KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Application Full Text | ||
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