A study on the properties of the 12 May Wenchuan earthquake-induced debris flow

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部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

	A study on the properties of the 12 May Wenchuan earthquake-induced debris flow
	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
	2011
会议名称	5th International Conference on Debris-Flow Hazard Mitigation: Mechanics, Prediction, and Assessment
会议日期	June 14, 2011 - June 17, 2011
会议地点	Padua, Italy
关键词	debris- flow field observation development feature Niujuan Gully
页码	865-873
通讯作者	Han, Y.S.
英文摘要	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.
收录类别	EI
会议主办者	American Society of Civil Engineers (ASCE)
会议录	International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment, Proceedings
会议录出版者	American Society of Civil Engineers (ASCE), 1801 Alexander Graham Bell Drive, Reston, VA 20191-4400, United States
语种	英语
ISBN号	9788895814469
内容类型	会议论文
源URL	[http://ir.imde.ac.cn/handle/131551/14141]
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.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
推荐引用方式 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]. 见:5th International Conference on Debris-Flow Hazard Mitigation: Mechanics, Prediction, and Assessment. Padua, Italy. June 14, 2011 - June 17, 2011.