IGGCAS OpenIR  > 页岩气与地质工程院重点实验室
Numerical simulation of the Rongcharong paleolandslide river-blocking event: implication for the longevity of the landslide dam
Yan, Jianhua1; Chen, Jianping1; Zhou, Fujun2; Li, Yongchao3; Zhang, Yiwei1; Gu, Feifan1; Zhang, Yansong1; Li, Yuchao1; Li, Zhihai1; Bao, Yiding4; Wang, Qing1
2022-03-17
Source PublicationLANDSLIDES
ISSN1612-510X
Pages18
AbstractNumerous paleolandslide dams are distributed along the upper reaches of the Jinsha River under the special geological setting of the Tibetan Plateau. A field investigation revealed that the Rongcharong paleoriver-blocking event formed one such dam. Optically stimulated luminescence results show that the paleolandslide occurred in 2.2 +/- 0.1 Ka BP and blocked the Jinsha River for approximately 800 years. The failure mechanism of the paleolandslide is the steeply inclined antidip rock topple under self-gravity. A distinct element method-based numerical landslide model is constructed using the topography restoration method. The parameter sensitivity results show that microparameters have important effects on the peak particle velocity and morphology of landslide dams. The optimal microparameters are determined by adopting back analysis based on the geomorphic parameters of the landslide dam. The numerical simulation results show that the sliding process lasts for 65 s; the corresponding peak velocity and runout distance are 28.2 m/s and 742.5 m, respectively; and the landslide forms a dam 1129 m long, 967 m wide, and 105 m high. The genetic mechanism of the paleolandslide is reflected in the calibration process of the microparameters and load type of the numerical simulation. Finally, the implications of microparameters for the longevity of the landslide dam are presented.
KeywordPaleolandslide river-blocking event Numerical simulation Topography restoration Distinct element method Landslide dam longevity
DOI10.1007/s10346-022-01872-0
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China
WOS KeywordSE TIBETAN PLATEAU ; UPPER JINSHA RIVER ; DEPOSIT CHARACTERISTICS ; MODEL ; PREDICTION ; PARAMETERS ; MECHANISM ; EVOLUTION ; AVALANCHE ; SICHUAN
Language英语
Funding ProjectNational Natural Science Foundation of China[41941017 U1702241] ; National Key Research and Development Program of China[2018YFC1505301]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000770212900003
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/105014
Collection页岩气与地质工程院重点实验室
Corresponding AuthorWang, Qing
Affiliation1.Jilin Univ, Coll Construct Engn, Changchun 130026, Peoples R China
2.China Railway First Survey & Design Inst Grp CO L, Xian 710043, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, 9,Block 4,South Renmin Rd, Chengdu 610041, Peoples R China
Recommended Citation
GB/T 7714
Yan, Jianhua,Chen, Jianping,Zhou, Fujun,et al. Numerical simulation of the Rongcharong paleolandslide river-blocking event: implication for the longevity of the landslide dam[J]. LANDSLIDES,2022:18.
APA Yan, Jianhua.,Chen, Jianping.,Zhou, Fujun.,Li, Yongchao.,Zhang, Yiwei.,...&Wang, Qing.(2022).Numerical simulation of the Rongcharong paleolandslide river-blocking event: implication for the longevity of the landslide dam.LANDSLIDES,18.
MLA Yan, Jianhua,et al."Numerical simulation of the Rongcharong paleolandslide river-blocking event: implication for the longevity of the landslide dam".LANDSLIDES (2022):18.
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