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Article: Functions of check dam against debris flow: Comparison of two watersheds of Jiangjia Gully, Yunnan, China
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TitleFunctions of check dam against debris flow: Comparison of two watersheds of Jiangjia Gully, Yunnan, China
 
AuthorsZeng, QL2
Yue, ZQ1
Yang, ZF2
Zhang, XJ3
 
KeywordsChannel Erosion
Check Dam
Debris-Flow Countermeasure
Rock And Soil Mechanics
Water And Soil Conservation
 
Issue Date2005
 
CitationYanshilixue Yu Gongcheng Xuebao/Chinese Journal Of Rock Mechanics And Engineering, 2005, v. 24 n. 17, p. 3137-3145 [How to Cite?]
 
AbstractDebris 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.
 
ISSN1000-6915
2013 SCImago Journal Rankings: 1.100
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorZeng, QL
 
dc.contributor.authorYue, ZQ
 
dc.contributor.authorYang, ZF
 
dc.contributor.authorZhang, XJ
 
dc.date.accessioned2012-06-26T06:03:18Z
 
dc.date.available2012-06-26T06:03:18Z
 
dc.date.issued2005
 
dc.description.abstractDebris 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.naturelink_to_subscribed_fulltext
 
dc.identifier.citationYanshilixue Yu Gongcheng Xuebao/Chinese Journal Of Rock Mechanics And Engineering, 2005, v. 24 n. 17, p. 3137-3145 [How to Cite?]
 
dc.identifier.epage3145
 
dc.identifier.hkuros108141
 
dc.identifier.issn1000-6915
2013 SCImago Journal Rankings: 1.100
 
dc.identifier.issue17
 
dc.identifier.scopuseid_2-s2.0-25144472687
 
dc.identifier.spage3137
 
dc.identifier.urihttp://hdl.handle.net/10722/150320
 
dc.identifier.volume24
 
dc.languageeng
 
dc.publisher.placeChina
 
dc.relation.ispartofYanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering
 
dc.relation.referencesReferences in Scopus
 
dc.subjectChannel Erosion
 
dc.subjectCheck Dam
 
dc.subjectDebris-Flow Countermeasure
 
dc.subjectRock And Soil Mechanics
 
dc.subjectWater And Soil Conservation
 
dc.titleFunctions of check dam against debris flow: Comparison of two watersheds of Jiangjia Gully, Yunnan, China
 
dc.typeArticle
 
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<contributor.author>Yang, ZF</contributor.author>
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Author Affiliations
  1. The University of Hong Kong
  2. Institute of Geology and Geophysics Chinese Academy of Sciences
  3. Chinese Academy of Geological Sciences