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A rapid loess mudflow triggered by the check dam failure in a bulldoze mountain area, Lanzhou, China
Zhang, Fanyu1; Yan, Binbin1; Feng, Xiaoming1; Lan, Hengxing2,3; Kang, Chao4; Lin, Xishan1; Zhu, Xinghua3; Ma, Wenguo5
2019-10-01
Source PublicationLANDSLIDES
ISSN1612-510X
Volume16Issue:10Pages:1981-1992
Corresponding AuthorZhang, Fanyu(Zhangfy@lzu.edu.cn) ; Lan, Hengxing(Lanhx@igsnrr.ac.cn)
AbstractUrban expansion results in a large number of land creation projects in the Chinese Loess Plateau. This has strikingly catalyzed hilltops being cut and valleys or low lands being filled by bulldozed mountain. Meanwhile, a large number of check dams were built into the loess gully to store soil and water. This paper studied a case of check dam failure, which resulted in rapid loess mudflow in a bulldozed mountain area. To investigate kinematic characteristics of the mudflow and trigger mechanism of the dam failure, in situ feature measurements, physical property tests, triaxial tests, and groundwater simulations were carried out. The field investigation revealed that moisture content of the loess in the filled area was very high and that the dam failure was most likely due to groundwater seepage. The VS2DI simulation of the check dam showed that its material was over saturated due to moisture migration in it, which significantly affected its stability. The simulation results are consistent with those of the field investigation. Rapid mobility of the mudflow could be attributed to liquefaction of the loess behind the dams. Meanwhile, the movement velocities calculated from by in situ mud splash height are related to the deposited volume of the mobilized materials at corresponding sites.
KeywordLoess mudflow Check dam failure VS2DI simulation Bulldozed mountain area
DOI10.1007/s10346-019-01219-2
WOS KeywordDEBRIS FLOW ; LANDSLIDE ; GROUNDWATER ; WASHINGTON ; PLATEAU ; SYSTEMS ; IRRIGATION ; FLOWSLIDE ; BEHAVIOR ; SEATTLE
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41790443] ; National Natural Science Foundation of China[41525010] ; National Key Research and Development Program of China[2018YFC504702] ; Opening Fund of State Key Laboratory of Geohazard Prevention and Geoenvironment Protection[SKLGP2016K020] ; Fundamental Research Funds for the Central Universities[lzujbky-2019-kb46]
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Program of China ; Opening Fund of State Key Laboratory of Geohazard Prevention and Geoenvironment Protection ; Fundamental Research Funds for the Central Universities
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000487283900010
PublisherSPRINGER HEIDELBERG
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/69582
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhang, Fanyu; Lan, Hengxing
Affiliation1.Lanzhou Univ, Dept Geol Engn, MOE Key Lab Mech Disaster & Environm Western Chin, Lanzhou 730000, Gansu, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
3.Changan Univ, Sch Geol Engn & Geomat, Xian 710064, Shaanxi, Peoples R China
4.Univ Alberta, Dept Civil & Environm Engn, Edmonton, AB T6G 2W2, Canada
5.Ningxia Univ, Sch Phys & Elect Elect Engn, Yinchuan 750021, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Fanyu,Yan, Binbin,Feng, Xiaoming,et al. A rapid loess mudflow triggered by the check dam failure in a bulldoze mountain area, Lanzhou, China[J]. LANDSLIDES,2019,16(10):1981-1992.
APA Zhang, Fanyu.,Yan, Binbin.,Feng, Xiaoming.,Lan, Hengxing.,Kang, Chao.,...&Ma, Wenguo.(2019).A rapid loess mudflow triggered by the check dam failure in a bulldoze mountain area, Lanzhou, China.LANDSLIDES,16(10),1981-1992.
MLA Zhang, Fanyu,et al."A rapid loess mudflow triggered by the check dam failure in a bulldoze mountain area, Lanzhou, China".LANDSLIDES 16.10(2019):1981-1992.
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