IMHE OpenIR  > 山地灾害与地表过程重点实验室
Mechanism of Cross-feed Action between Check Dam Structure and Upper Shallow Landslide
Zhong Wei1,2; Chen Xiao-Qing1,2
Corresponding AuthorZhong Wei
2013
Source PublicationICMTMA '13 Proceedings of the 2013 Fifth International Conference on Measuring Technology and Mechatronics Automation ; Proceedings - 2013 5th Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2013
ISSN978-0-7695-4932-3
Pages688-690
Abstract
Check dam engineering is usually arranged in channel of deformation zones of debris flow. And it plays a role of retaining sediment, raising erosive base, slowdown slope of gully bed and stabilizing slope and fixing bed. Combined limit equilibrium method, the mechanism of cross-feed action between check dam and debris flow, upper shallow landslide is discussed in this paper. The influence of different trapped sediment thickness, the erosion of debris flow to slope toe and different height of water storage after dam on upper shallow landslide is calculated and analyzed. Stability of landslide at different location in the direction of trapped sediment is briefly described. The results show as follows. ¡ð1The trapped sediment after dam can stabilize slope, but the influence on increasing stability is little. On the other hand, slope mass sheared and shear opening elevation decrease landslide scale, and to some extent decrease the sediment source of debris flow. ¡ð2The most dangerous slip surface has great changes after water storage. The shear opening gradually reduces from slope surface to water level below. This leads to landslide scale increase and further increase sediment source in the debris flow gully. So the occurring scale of debris flow increases. ¡ð3The location of landslide is different in the direction of trapped sediment, gully erosion and trapped sediment thickness have different response to it. The nearer to check dam, the bigger trapped sediment, and the better landslide stability. Inversely, the farther away from it, the bigger possibility of erosion is, and the weaker stability.

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KeywordDebris Flow Check Dam Engineering Shallow Landslide Cross-feed Action
DOI10.1109/ICMTMA.2013.172
Indexed ByEI
Language英语
Funding OrganizationICMTMA
PublisherIEEE Computer Society
Accession numberAccession number:20131816286275
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18238
Collection山地灾害与地表过程重点实验室
Affiliation1.Key Laboratory of Mountain Hazards and Surface Process , Chinese Academy of Sciences, Chengdu 610041, China
2.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Cheng du 610041, 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
Zhong Wei,Chen Xiao-Qing. Mechanism of Cross-feed Action between Check Dam Structure and Upper Shallow Landslide[J]. ICMTMA '13 Proceedings of the 2013 Fifth International Conference on Measuring Technology and Mechatronics Automation, Proceedings - 2013 5th Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2013,2013:688-690.
APA Zhong Wei,&Chen Xiao-Qing.(2013).Mechanism of Cross-feed Action between Check Dam Structure and Upper Shallow Landslide.ICMTMA '13 Proceedings of the 2013 Fifth International Conference on Measuring Technology and Mechatronics Automation,688-690.
MLA Zhong Wei,et al."Mechanism of Cross-feed Action between Check Dam Structure and Upper Shallow Landslide".ICMTMA '13 Proceedings of the 2013 Fifth International Conference on Measuring Technology and Mechatronics Automation (2013):688-690.
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