Article: Functions of check dam against debris flow: Comparison of two watersheds of Jiangjia Gully, Yunnan, China

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Title	Functions of check dam against debris flow: Comparison of two watersheds of Jiangjia Gully, Yunnan, China
Authors	Zeng, QL2 Yue, ZQ1 Yang, ZF2 Zhang, XJ3
Keywords	Channel Erosion Check Dam Debris-Flow Countermeasure Rock And Soil Mechanics Water And Soil Conservation
Issue Date	2005
Citation	Yanshilixue Yu Gongcheng Xuebao/Chinese Journal Of Rock Mechanics And Engineering, 2005, v. 24 n. 17, p. 3137-3145 [How to Cite?]
Abstract	Debris flow activity has recently caused serious property damage as well as loss of life in Yunnan, Southwest China. Moreover, ground failure caused by debris flow needs a long time to be recovered. The hazards of debris flow can be prevented or released by some engineering countermeasures such as erosion control. The check dam is one of the most effective structures to control the debris flow in the original area. Based on the examination of architectonic geology, engineering geology, rock mechanics and remote sensing geology, two major tributary gullies (one with check dams but the other without) of Jiangjia Gully in Yunnan Province, are compared in three aspects (channel longitudinal gradient, stability of lateral slopes and trailing edge of channel, soil erosion by debris flow) to prove that check dam or check dam series can: (1) effectively uplift the basic level of erosion of debris-flow channel; (2) reduce the longitudinal gradient of the debris-flow channel, and accordingly velocity slowed down and energy dissipated; (3) fix the channel and stabilize the slope so as to facilitate or restore the growth of the vegetation. In addition, several problems, needed to be taken into account during the design of check dam, are also discussed.
ISSN	1000-6915 2011 SCImago Journal Rankings: 0.048
References	References in Scopus

DC Field	Value
dc.contributor.author	Zeng, QL
dc.contributor.author	Yue, ZQ
dc.contributor.author	Yang, ZF
dc.contributor.author	Zhang, XJ
dc.date.accessioned	2012-06-26T06:03:18Z
dc.date.available	2012-06-26T06:03:18Z
dc.date.issued	2005
dc.description.abstract	Debris flow activity has recently caused serious property damage as well as loss of life in Yunnan, Southwest China. Moreover, ground failure caused by debris flow needs a long time to be recovered. The hazards of debris flow can be prevented or released by some engineering countermeasures such as erosion control. The check dam is one of the most effective structures to control the debris flow in the original area. Based on the examination of architectonic geology, engineering geology, rock mechanics and remote sensing geology, two major tributary gullies (one with check dams but the other without) of Jiangjia Gully in Yunnan Province, are compared in three aspects (channel longitudinal gradient, stability of lateral slopes and trailing edge of channel, soil erosion by debris flow) to prove that check dam or check dam series can: (1) effectively uplift the basic level of erosion of debris-flow channel; (2) reduce the longitudinal gradient of the debris-flow channel, and accordingly velocity slowed down and energy dissipated; (3) fix the channel and stabilize the slope so as to facilitate or restore the growth of the vegetation. In addition, several problems, needed to be taken into account during the design of check dam, are also discussed.
dc.description.nature	Link_to_subscribed_fulltext
dc.identifier.citation	Yanshilixue Yu Gongcheng Xuebao/Chinese Journal Of Rock Mechanics And Engineering, 2005, v. 24 n. 17, p. 3137-3145 [How to Cite?]
dc.identifier.epage	3145
dc.identifier.hkuros	108141
dc.identifier.issn	1000-6915 2011 SCImago Journal Rankings: 0.048
dc.identifier.issue	17
dc.identifier.scopus	eid_2-s2.0-25144472687
dc.identifier.spage	3137
dc.identifier.uri	http://hdl.handle.net/10722/150320
dc.identifier.volume	24
dc.language	eng
dc.publisher.place	China
dc.relation.ispartof	Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering
dc.relation.references	References in Scopus
dc.subject	Channel Erosion
dc.subject	Check Dam
dc.subject	Debris-Flow Countermeasure
dc.subject	Rock And Soil Mechanics
dc.subject	Water And Soil Conservation
dc.title	Functions of check dam against debris flow: Comparison of two watersheds of Jiangjia Gully, Yunnan, China
dc.type	Article

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Author Affiliations

The University of Hong Kong
Institute of Geology and Geophysics Chinese Academy of Sciences
Chinese Academy of Geological Sciences

Article: Functions of check dam against debris flow: Comparison of two watersheds of Jiangjia Gully, Yunnan, China

The HKU Scholars Hub has contact details for these author(s).