IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2014  > Vol11 No.6
Types and Causes of Debris Flow Damage to Drainage Channels in the Wenchuan Earthquake Area
Chen Jian-gang1,2,3; Chen Xiao-qing1,2,3; Wang Tao1,2,3; Zou Yu-hua1,2,3; Zhong Wei1,2,3
Corresponding AuthorCHEN Xiao-qing
2014
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
EISSN1993-0321
Volume11Issue:6Pages:1406-1419
SubtypeArticle
AbstractDebris flows are among the most common geological disasters in China, and have been particularly frequent in Sichuan Province since the Wenchuan earthquake on 12 May 2008. The construction of debris flow drainage channels is a countermeasure used to distribute debris flow fans, and these channels play a critical role in the mitigation and prevention of damage resulting from debris flows. Under field conditions, the useful life of drainage channels can be greatly shortened as a result of strong abrasions to the drainage structure caused by the debris flow. Field investigations have shown that the types of damage to drainage channels include (a) erosion caused by hyper-concentrated silt flow, (b) impact fractures and foundation scour at the ground-sills of the drainage channel, (c) destruction of the drainage channel outlet, and (d) destruction of the drainage channel caused by debris flow abrasion. In addition, based on the destruction of the drainage channel during the debris flow drainage process, a new type of drainage channel with energy dissipation components was proposed and applied in a steep, narrow gully for debris flow mitigation. Moreover, design and engineering repair recommendations for drainage channels are provided as a reference for repairing the damage to the channel. The results can provide an important reference for the effective repair and optimal design of drainage channels.
KeywordDebris Flow Drainage Channel Damage Type Wenchuan Earthquake Geological Disaster
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s11629-014-3045-x
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS Keyword13 AUGUST 2010 ; CHECK-DAM ; CHINA ; LANDSLIDES ; MOBILIZATION ; ZHOUQU
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences
WOS IDWOS:000345621100004
Funding OrganizationChinese Academy of Sciences(KZZD-EW-05-01) ; Natural Science Foundation of China(41302283) ; Institute of Mountain Hazards and Environment, CAS(SDS-QN-1305) ; Young Science Foundation of Key Laboratory of Mountain Hazards and Earth Surface Processes, CAS
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Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/7409
CollectionJournal of Mountain Science_Journal of Mountain Science-2014_Vol11 No.6
山地灾害与地表过程重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
3.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Chen Jian-gang,Chen Xiao-qing,Wang Tao,et al. Types and Causes of Debris Flow Damage to Drainage Channels in the Wenchuan Earthquake Area[J]. JOURNAL OF MOUNTAIN SCIENCE,2014,11(6):1406-1419.
APA Chen Jian-gang,Chen Xiao-qing,Wang Tao,Zou Yu-hua,&Zhong Wei.(2014).Types and Causes of Debris Flow Damage to Drainage Channels in the Wenchuan Earthquake Area.JOURNAL OF MOUNTAIN SCIENCE,11(6),1406-1419.
MLA Chen Jian-gang,et al."Types and Causes of Debris Flow Damage to Drainage Channels in the Wenchuan Earthquake Area".JOURNAL OF MOUNTAIN SCIENCE 11.6(2014):1406-1419.
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