| A study on the properties of the 12 May Wenchuan earthquake-induced debris flow | |
| Language | 英语 |
Han, Y.S.1; Han, J.2; Zhu, Y.Y.2 ; Kong, Y.P.3; Su, F.H.2; Li, L.W.1; Huang, P.1
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| 2011 | |
| Source Publication | 5th International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment |
| Author of Source | R. Genevos ; D.L. Hamlion ; A. Prestinuizi |
| Pages | 865-873 |
| meeting | 5th International Conference on Debris-Flow Hazard Mitigation: Mechanics, Prediction, and Assessment |
| Conference Date | 2011 |
| Conference Place | Padua |
| Country | Italy |
| Publisher | American Society of Civil Engineers (ASCE) |
| Contribution Rank | 1 |
| Abstract | Debris flows triggered by earthquakes are recognized globally for their huge destructive power. Studies on the development features of debris flow are essential for disaster prevention and mitigation and the results can be used as a scientific basis for assuring public security, preventing debris-flow disasters and reconstructing the afflicted areas by earthquake. Taking the, Niujuan Gully, as the case study area, this paper discusses field observations of the initiation and path of debris flows in the epicentral area of the 12 May, 2008 Wenchuan Earthquake. Based on the natural conditions and debris flow distribution in the study area, a field control network was established to monitor the gully bed, typical slopes and channel sections of different kinds of debris flows that initiated from hillslopes and gullies. We observed debris flows and their change under different rainfall circumstances, surveyed slope, section, channel and gully bed by means of GPS, GPT-3002 total-station instrument and 3D laser scanning system and drew digital topographic maps, sectional maps and profile maps with a 1:50 scale. Based on the observed data, we probed into the erosion laws and development features(including erosion, transportation, deposition, etc) of different kinds of debris flows and analyzed debris flow discharge, erosion-deposition variation and destructive magnitude. The findings provided data support for debris flow risk assessment and monitoring systems. © 2011 Casa Editrice Universita La Sapienza. |
| Keyword | Debris flows Flow depth Residual layers Roll waves Velocity profiles |
| DOI | 10.4408/IJEGE.2011-03.B-025 |
| ISBN | 9788895814469 |
| Indexed By | EI |
| Accession number | Accession number:20122315082235 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/24068 |
| Collection | 山地灾害与地表过程重点实验室 |
| Corresponding Author | Han, Y.S. |
| Affiliation | 1.School of Architecture and Urban Planning, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China; 2.Institute of Mountain Hazards and Environment, CAS, Chengdu 610065, Sichuan, China; 3.China Academy of Transportation Sciences, Ministry of Communications, Beijing 100029, China |
| Recommended Citation GB/T 7714 | Han, Y.S.,Han, J.,Zhu, Y.Y.,et al. A study on the properties of the 12 May Wenchuan earthquake-induced debris flow[C]//R. Genevos, D.L. Hamlion, A. Prestinuizi:American Society of Civil Engineers (ASCE),2011:865-873. |
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| A study on the prope（432KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Application Full Text | ||
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