Effect assessment of debris flow mitigation works based on numerical simulation by using Kanako 2D

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

	Effect assessment of debris flow mitigation works based on numerical simulation by using Kanako 2D
	Liu, Jinfeng1 ; Nakatani, Kana 2; Mizuyama, Takahisa 2
刊名	LANDSLIDES
	2013-04-01
卷号	10 期号:2 页码:161-173
关键词	Effect assessment Debris flow Mitigation measures Numerical simulation Kanako
ISSN号	1612-510X
通讯作者	Liu Jinfeng（柳金峰）
英文摘要	Mitigation works are very essential for mitigation of debris-flow hazards in mountainous areas. Usually, it is difficult to assess the effectiveness of existing mitigation works in a catchment. This paper presented a method for quantitative assessment of debris flow mitigation measures by using Kanako system, a user-friendly GUI-equipped debris flow simulator that allows good visualization and easy interpretation. Kanako 2D (Ver. 2.04) was applied to a case study at Caijia Gully, Sichuan Province, China. Mitigation works including check dams, drainage channel, and deposition basin were constructed in the gully in 2001 and 2006. Kanako 2D can simulate debris flow from steep area to alluvial fan. 1D simulation was applied for assessing the effect of the check dams at the lower part of the gully, and 2D simulation was applied for the effect of the drainage channel and deposition basin on the alluvial fan. The simulation results indicate that debris flow will cause great damage to residential area on the alluvial fan if mitigation measures were not implemented in the gully. For old dams which have been filled up with deposits of previous debris flows, the results show that they still have the function for controlling debris flow due to the gradient reduction of the channel bed in front of the dams by the trapped debris flow deposition. After the comprehensive control of debris flow including trapping, drainage, and deposition in the gully, the simulation results indicate that the risk on the alluvial fan can be reduced to an acceptable level.
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Engineering, Geological ; Geosciences, Multidisciplinary
研究领域[WOS]	Engineering ; Geology
关键词[WOS]	CHECK-DAM
收录类别	SCI
语种	英语
WOS记录号	WOS:000317141600004
公开日期	2012-12-10
内容类型	期刊论文
源URL	[http://192.168.143.20:8080/handle/131551/4398]
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 Surface Proc & Hazards, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Kyoto Univ, Dept Eros Control Engn, Kyoto 6068502, Japan
推荐引用方式 GB/T 7714	Liu, Jinfeng,Nakatani, Kana,Mizuyama, Takahisa. Effect assessment of debris flow mitigation works based on numerical simulation by using Kanako 2D[J]. LANDSLIDES,2013,10(2):161-173.
APA	Liu, Jinfeng,Nakatani, Kana,&Mizuyama, Takahisa.(2013).Effect assessment of debris flow mitigation works based on numerical simulation by using Kanako 2D.LANDSLIDES,10(2),161-173.
MLA	Liu, Jinfeng,et al."Effect assessment of debris flow mitigation works based on numerical simulation by using Kanako 2D".LANDSLIDES 10.2(2013):161-173.