Abstract
A rainfall-induced complex landslide occurred on April 4, 2013, in Wanzhou County, Three Gorges Reservoir, China. Approximately 1.5 × 106 m3 of earth and rock mass slid over a distance of ~ 30 m, destroying residential buildings and rural roads. We perform a comprehensive assessment of the cause of this landslide using field surveys, borehole drillings, and interpretations of aerial photographs. This landslide exhibited a complex failure mode in which the upper part of the earth slope first deformed and slid along geotechnical interfaces. This then triggered the slide of the lower part of the flysch bedding rock. In this study, the landslide mass was divided into nine separate blocks considering their internal geological features and movements. The study also shows that antecedent rainfall, in association with the geological and morphological features of the steep slope, the presence of weak interlayers, and human interventions such as slope excavations, jointly caused this disaster. This well-observed event study facilitates comprehensive recognition of the deformation characteristics and failure mechanisms of rainfall-induced complex landslides and also provides an insight into landslide hazard mitigation.
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References
Baum RL, Godt JW (2010) Early warning of rainfall-induced shallow landslides and debris flows in the USA. Landslides 7(3):259–272. https://doi.org/10.1007/s10346-009-0177-0
Bonnard CH, Noverraz F (2001) Influence of climate change on large landslides: assessment of long term movements and trends. In: Proceedings of the International Conference on Landslides causes impact and countermeasures. Gluckauf, Essen, pp 121–138
Brambilla D, Ivanov VI, Longoni L, Arosio D, Papini M (2017) Geological assessment and physical model of complex landslides: integration of different techniques. In: Mikos M, Tiwari B, Yin Y, Sassa K (eds) Advancing culture of living with landslides, WLF 2017. Springer, Cham, pp 431–437
Cannon SH (1985) Rainfall conditions for abundant debris avalanches, San Francisco Bay region, California. Calif Geol 38(12):267–272
Capparelli G, Tiranti D (2010) Application of the MoniFLaIR early warning system for rainfall-induced landslides in Piedmont region (Italy). Landslides 7(4):401–410. https://doi.org/10.1007/s10346-009-0189-9
Conte E, Donato A, Troncone A (2017) A simplified method for predicting rainfall-induced mobility of active landslides. Landslides 14(1):35–45. https://doi.org/10.1007/s10346-016-0692-8
Crosta GB, Frattini P (2008) Rainfall-induced landslides and debris flows. Hydrol Process 22(4):473–477. https://doi.org/10.1002/hyp.6885
Cruden DM, Varnes DJ (1996) Landslide types and processes. In: Turner AK, Schuster RL (eds) Special report 247: landslides investigation, mitigation. National Research Council, Transportation Research Board, Washington D.C., pp 36–75
Dai FC, Lee CF (2001) Frequency-volume relation and prediction of rainfall-induced landslides. Eng Geol 59(3-4):253–266. https://doi.org/10.1016/S0013-7952(00)00077-6
Duc DM (2013) Rainfall-triggered large landslides on 15 December 2005 in Van Canh district, Binh Dinh province, Vietnam. Landslides 10:219–230. https://doi.org/10.1007/s10346-012-0362-4
Goodman RE, Kieffer DS (2000) Behavior of rock in slopes. J Geotech Geoenviron 126(8):675–684. https://doi.org/10.1061/(ASCE)1090-0241(2000)126:8(675)
Hong Y, Hiura H, Shino K, Sassa K, Suemine A, Fukuoka H, Wang G (2005) The influence of intense rainfall on the activity of large-scale crystalline schist landslides in Shikoku Island, Japan. Landslides 2(2):97–105. https://doi.org/10.1007/s10346-004-0043-z
Hungr O, Leroueil S, Picarelli L (2014) The Varnes classification of landslide types, an update. Landslides 11(2):167–194. https://doi.org/10.1007/s10346-013-0436-y
Lin F, Wu LZ, Huang RQ, Zhang H (2018) Formation and characteristics of the Xiaoba landslide in Fuquan, Guizhou, China. Landslides 15(4):669–681. https://doi.org/10.1007/s10346-017-0897-5
Luo G, Hu X, Gu C, Wang Y (2012) Numerical simulations of kinetic formation mechanism of Tangjiashan landslide. J Rock Mech Geotech Eng 4(2):149–159. https://doi.org/10.3724/SP.J.1235.2012.00149
Luo G, Hu X, Bowman ET, Liang J (2017) Stability evaluation and prediction of the dongle reactivated ancient landslide as well as emergency mitigation for the Dongla Bridge. Landslides 14:1–16. https://doi.org/10.1007/s10346-017-0796-9
Ma G, Hu X, Yin Y, Luo G, Pan Y (2018) Failure mechanisms and development of catastrophic rockslides triggered by precipitation and open-pit mining in Emei, Sichuan, China. Landslides 15(7):1401–1414. https://doi.org/10.1007/s10346-018-0981-5
Martha TR, Roy P, Govindharaj KB, Kumar KV, Diwakar PG, Dadhwal VK (2015) Landslides triggered by the June 2013 extreme rainfall event in parts of Uttarakhand state, India. Landslides 12(1):135–146. https://doi.org/10.1007/s10346-014-0540-7
Michiue M (1985) A method for predicting slope failures on cliff and mountain due to heavy rain. Nat Disaster Sci 7(1):1–12
Regmi AD, Yoshida K, Cui P, Hatano N (2017) Development of Taprang landslide, west Nepal. Landslides 14(3):929–946. https://doi.org/10.1007/s10346-016-0752-0
Reid ME (1994) A pore-pressure diffusion model for estimating landslide-inducing rainfall. J Geol 102(6):709–717. https://doi.org/10.1086/629714
Sabatakakis N, Koukis G, Mourtas D (2005) Composite landslides induced by heavy rainfalls in suburban areas: City of Patras and surrounding area, western Greece. Landslides 2(3):202–211
Santo A, Di Crescenzo G, Forte G, Papa R, Pirone M, Urciuoli G (2018) Flow-type landslides in pyroclastic soils on flysch bedrock in southern Italy: the Bosco de’Preti case study. Landslides 15(1):63–82. https://doi.org/10.1007/s10346-017-0854-3
Terzaghi K (1950) Mechanism of landslides. In: Paige S (ed) Application of geology to engineering practice. Geological Society of America, New York, pp 83–123
Varnes DJ (1958) Landslide types and processes. Highway Res Board Special Rep 29(3):20–45
Varnes DJ (1978) Slope movement types and processes. Transport Res Board Special Rep 176:11–33
Wang J (2015) Landslide risk assessment in Wanzhou County, Three Gorges Reservoir. Dissertation, China University of Geosciences (Wuhan)
Wang G, Sassa K (2003) Pore-pressure generation and movement of rainfall-induced landslides: effects of grain size and fine-particle content. Eng Geol 69(1-2):109–125. https://doi.org/10.1016/S0013-7952(02)00268-5
Xu Q, Fan X, Dong X (2012) Characteristics and formation mechanism of a catastrophic rainfall–induced rock avalanche–mud flow in Sichuan, China, 2010. Landslides 9(1):143–154. https://doi.org/10.1007/s10346-011-0278-4
Xu L, Dai FC, Chen J, Lqbal J, Qu YX (2015) Analysis of a progressive slope failure in the Xiangjiaba reservoir area, Southwest China. Landslides 11:55–66
Zhang SL, Zhu ZH, Qi SC, Hu YX, Du Q, Zhou JW (2018) Deformation process and mechanism analyses for a planar sliding in the Mayanpo massive bedding rock slope at the Xiangjiaba Hydropower Station. Landslides 15(10):2061–2073. https://doi.org/10.1007/s10346-018-1041-x
Acknowledgments
We thank the Wanzhou Geological Environment Monitoring Station and the Nanjiang Hydrogeological Engineering Geological Team for providing us the valuable data. We also thank Prof. Kunlong Yin, Prof. Bo Chai from China University of Geosciences, and Prof. Steven N. Ward from University of California, Santa Cruz for their significant contributions in improving this manuscript.
Funding
This research is supported by the National Natural Science Foundation of China (grant numbers 41907234 and 41907237), Natural Science Foundation of Shaanxi Province (CN) (grant numbers 2017JQ4010 and 2018JQ4041), Postdoctoral Research Foundation of China (CN) (grant number 2017M613033), and the Fundamental Research Funds for the Central Universities, CHD (grant numbers 300102219107 and 300102219104).
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Wang, J., Xiao, L., Zhang, J. et al. Deformation characteristics and failure mechanisms of a rainfall-induced complex landslide in Wanzhou County, Three Gorges Reservoir, China. Landslides 17, 419–431 (2020). https://doi.org/10.1007/s10346-019-01317-1
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DOI: https://doi.org/10.1007/s10346-019-01317-1