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Experimental Investigation on Failure Modes and Progressive Failure Process of Earthen Check Dam Triggered by Upstream Flow

文献类型：期刊论文

作者Zhu, Yanbo2; Li, Futong2; Yang, Fanfan2; Zhang, Yuxuan2; Tian, Wanghui2; Lan, Hengxing1,2
刊名FRONTIERS IN EARTH SCIENCE
出版日期2022-01-27
卷号10页码:19
关键词earthen check dam loess gully seepage sliding overtopping creep
DOI10.3389/feart.2022.818508
通讯作者Zhu, Yanbo(zhuyanbo@chd.edu.cn) ; Lan, Hengxing(Lanhx@igsnrr.ac.cn)
英文摘要The progressive failure of earthen check dams triggered by upstream flow is common in loess gullies on the Loess Plateau of China. However, studies on the formation mechanism of progressive failure are still unclear. To investigate the failure modes and progressive failure process of earthen check dams, a physical model test on an earthen dam influenced by upstream flow was conducted by monitoring and analyzing hydrologic and mechanical parameters, including water content, pore water pressure, soil stress, and displacement. The test results indicate that the progressive failure process of earthen dams is induced by seepage water discharged on the downstream slope, including slope slide and overtopping. Continuous seepage results in the occurrence of creep at the toe, gradually driving the deformation and sliding of the dam slope. The progressive failure begins in the downstream slopes, and this study focuses on analyzing the initiation mechanism of slope slide. The slope failure presents retrogressive sliding, including four repeated slip failures, and each sliding presents a long-time progressive process. This physical model test reproduces the entire life cycle of earthen check dams and reveals the traction sliding mechanism of dams, which is consistent with field observation. The aforementioned results provide an important reference for understanding the failure mechanism of earthen check dams triggered by upstream flow.
WOS关键词LOESS PLATEAU ; LANDSLIDE DAM ; RESPONSES ; EROSION
资助项目National Natural Science Foundation of China[41877247] ; National Natural Science Foundation of China[41790443] ; National Natural Science Foundation of China[42041006]
WOS研究方向Geology
语种英语
WOS记录号WOS:000753184100001
出版者FRONTIERS MEDIA SA
资助机构National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/170750]  
专题中国科学院地理科学与资源研究所
通讯作者Zhu, Yanbo; Lan, Hengxing
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China
2.Changan Univ, Coll Geol Engn & Geomat, Xian, Peoples R China
推荐引用方式
GB/T 7714		 Zhu, Yanbo,Li, Futong,Yang, Fanfan,et al. Experimental Investigation on Failure Modes and Progressive Failure Process of Earthen Check Dam Triggered by Upstream Flow[J]. FRONTIERS IN EARTH SCIENCE,2022,10:19.
APA Zhu, Yanbo,Li, Futong,Yang, Fanfan,Zhang, Yuxuan,Tian, Wanghui,&Lan, Hengxing.(2022).Experimental Investigation on Failure Modes and Progressive Failure Process of Earthen Check Dam Triggered by Upstream Flow.FRONTIERS IN EARTH SCIENCE,10,19.
MLA Zhu, Yanbo,et al."Experimental Investigation on Failure Modes and Progressive Failure Process of Earthen Check Dam Triggered by Upstream Flow".FRONTIERS IN EARTH SCIENCE 10(2022):19.

入库方式： OAI收割

来源：地理科学与资源研究所

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