Forecast method of multimode system for debris flow risk assessment in Qingping Town, Sichuan Province, China

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

	Forecast method of multimode system for debris flow risk assessment in Qingping Town, Sichuan Province, China
	Tian Shujun 1,2; Kong Jiming1,3 ; Li Xiuzhen1,3
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2011-08-01
卷号	8 期号:4 页码:592-602
关键词	Multimode System Risk assessment Debris flow Landslide Wenchuan Earthquake Qingping Town
ISSN号	1672-6316
通讯作者	Kong, JM （孔纪名）
英文摘要	The Wenchuan Earthquake of May 12, 2008 triggered large numbers of geo-hazards. The heavy rain on 13 August 2010 triggered debris flows with total volume of more than 6 million cubic meters and the debris flows destroyed 500 houses and infrastructure built after the Wenchuan Earthquake. The study area Qingping Town was located in the northwestern part of the Sichuan Basin of China, which needs the second reconstructions and the critical evaluation of debris flow. This study takes basin as the study unit and defines collapse, landslide and debris flow hazard as a geo-hazard system. A multimode system composed of principal series system and secondary parallel system were established to evaluate the hazard grade of debris flow in 138 drainage basins of Qingping Town. The evaluation result shows that 30.43% of study basins (42 basins) and 24.58% of study area, are in extremely high or high hazard grades, and both percentage of basin quantity and percentage of area in different hazard grades decrease with the increase of hazard grade. According to the geo-hazard data from the interpretation of unmanned plane image with a 0.5-m resolution and field investigation after the Wenchuan Earthquake and 8.13 Big Debris Flow, the ratio of landslides and collapses increased after the Wenchuan Earthquake and the ratios of extremely high or high hazard grades were more than moderate or low hazard grades obviously. 23 geo-hazards after 8.13 Big Debris Flow in Qingping town region all occurred in basins with extremely high or high hazard grades, and 9 debris flows were in basins with extremely high hazard grade. The model of multimode system for critical evaluation could forecast not only the collapse and landslide but also the debris flow precisely when the basin was taken as the study unit.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	LANDSLIDE SUSCEPTIBILITY ; WENCHUAN EARTHQUAKE ; SLOPE STABILITY ; HAZARD ; MODEL ; SCALE ; BASIN ; INDIA ; AREA ; GIS
收录类别	SCI
语种	英语
WOS记录号	WOS:000293027700011
公开日期	2013-06-25
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/5496]
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.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China 2.SW Univ Sci & Technol, Sch Civil Engn & Architecture, Mianyang 621010, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Tian Shujun,Kong Jiming,Li Xiuzhen. Forecast method of multimode system for debris flow risk assessment in Qingping Town, Sichuan Province, China[J]. JOURNAL OF MOUNTAIN SCIENCE,2011,8(4):592-602.
APA	Tian Shujun,Kong Jiming,&Li Xiuzhen.(2011).Forecast method of multimode system for debris flow risk assessment in Qingping Town, Sichuan Province, China.JOURNAL OF MOUNTAIN SCIENCE,8(4),592-602.
MLA	Tian Shujun,et al."Forecast method of multimode system for debris flow risk assessment in Qingping Town, Sichuan Province, China".JOURNAL OF MOUNTAIN SCIENCE 8.4(2011):592-602.