Journal of Mountain Science

, Volume 16, Issue 4, pp 806–820 | Cite as

Reactivation of a huge ancient landslide by surface water infiltration

  • Guo-xiang Tu
  • Da HuangEmail author
  • Hui Deng


An ancient landslide, situated in Deqin County, Yunnan Province, China, was used to investigate the reactivation by water infiltration. This study considers the infiltration process and landslide stability using finite-element method (FEM)-based models. The results show that the reactivation of old landslide deposit was triggered by the long-term leakage of diversion ditch before October 2012, and the reactivation was triggered again by the intense rainfall on 7–9 October 2012. The old cracks, which formed in the earlier reactivation of landslide, played a key role for the rainfall infiltration. They offered a preferential path for much more rainfall to infiltrate fast into deep soil, and caused wetting front to move down faster in landslide. The old slip zone with lower permeability was another important factor to cause the infiltrated water to accumulate and form a high pore water pressure above slip zone. Then the high pore water pressure decreased the shear strength of slip zone and triggered the reactivation of the old landslide deposit again.


Landslide Rainfall infiltration Soil stability Finite-element-method Leakage of diversion ditch 


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We are grateful to the academic and technical staff of the State Key Laboratory of Geohazard Prevention and Geo-Environment Protection (SKLGP) at the Chengdu University of Technology, China. This research was supported by the National Natural Science Foundation of China (Grant Nos. 41472274, 41672300) and Independent Subject Foundation of SKLGP (SKLGP2017Z010).


  1. Au SWC (1998) Rain-induced slope instability in Hong Kong. Engineering Geology 51(1): 1–36. Google Scholar
  2. Chen W, Mo H, Chen L (2009) Study on rainfall infiltration process and the biggest infiltration depth for unsaturated soil slope. Mining and Metallurgical Engineering 29(6): 13–16. (In Chinese).Google Scholar
  3. Cho SE, Lee SR (2001) Instability of unsaturated soil slopes due to infiltration. Computers and Geotechnics 28(3): 185–208. Google Scholar
  4. Fredlund DG, Rahardjo H (1993) Soil mechanics for unsaturated soils. Wiley-Interscience Publication, John Wiley & Sons, Inc., United States.Google Scholar
  5. Griffiths DV, Lane PA (1999) Slope stability analysis by Finite elements. Geotechnique 49(3): 387–403. Google Scholar
  6. Hester ET, Little KL, Buckwalter JD, et al. (2019) Variability of subsurface structure and infiltration hydrology among surface coal mine valley fills. Science of the total environment 65(2): 2648–2661. Google Scholar
  7. Li Y, Xu W, Wang S, et al. (2019) Slope stability analysis with reference to rainfall infiltration in the Yongping Copper Mine, China. Current science 116(4): 536–543. Google Scholar
  8. Li Z, Tao Z, Jiang Y, et al. (2019) Real-time monitoring and FEMLIP simulation of a rainfall-induced rockslide. Natural hazards and earth system sciences 19(1): 153–168. Google Scholar
  9. Lin H, Yu Y, Li G, et al. (2009) Influence of rainfall characteristics on soil slope failure. Chinese Journal of Rock Mechanics & Engineering 28(1): 198–204. (In Chinese) Google Scholar
  10. Liu C (2014) Genetic Types of Landslide and Debris Flow Disasters in China. Geological Review 60(4): 858–868. (In Chinese)Google Scholar
  11. Liu G, Hu FN, Zheng FL, et al. (2019) Effects and mechanisms of erosion control techniques on stairstep cut-slopes. Science of the Total Environment 656: 307–315. Google Scholar
  12. Liu X, Xia Y, Cai J (2007) Study on stability of high-filled embankment slope of highly weathered soft rock under rainfall infiltration. Rock & Soil Mechanics 28(8): 1705–1709. (In Chinese). Google Scholar
  13. Luo H, Rong YB, Lv, JR, et al. (2019) Runoff erosion processes on artificially constructed conically-shaped overburdened stockpiles with different gravel contents: Laboratory experiments with simulated rainfall. Catena 175: 93–100. Google Scholar
  14. Mao C, Duan X, Li Z (1999) Numerical computation in Seepage Flow and Program Applications. Hehai University Press, China. (In Chinese)Google Scholar
  15. Matsui T, San K (1992) Finite element slope stability analysis by shear strength reduction technique. Soils and Foundations 32(1): 59–70. Google Scholar
  16. Ng CWW, Shi Q (1998a) Influence of rainfall intensity and duration on slope stability in unsaturated soils. Quarterly Journal of Engineering Geology and Hydrogeology 31(2): 105–113 31(2): 105–113. Google Scholar
  17. Ng CWW, Shi Q (1998b) A numerical investigation of the stability of unsaturated soil slopes subjected to transient seepage. Computers and Geotechnics 22(1): 1–28. Google Scholar
  18. Schnellmann R, Busslinger M, Schneider HR (2010) Effect of rising water table in an unsaturated slope. Engineering Geology 114(1–2): 71–83. Google Scholar
  19. Servel M, Tim B, Norman H (2009) Rainfall thresholding and susceptibility assessment of rainfall-induced landslides: application to landslide management in St Thomas, Jamaica. Bulletin of Engineering Geology & the Environment 68(4): 539–550. Google Scholar
  20. Sun J, Liu Q, Li J, et al. (2009) Effects of rainfall infiltration on deep slope failure. Science in China Series G: Physics, Mechanics & Astronomy 52(1): 108–114. Google Scholar
  21. Sun G (1988) Typical Slopes in China. Science Press, Beijing. (In Chinese).Google Scholar
  22. Tang YM, Xue Q, Li ZG, et al. (2015) Three modes of rainfall infiltration inducing loess landslide. Natural Hazards 79(1): 137–150. Google Scholar
  23. Tang R, Cai J, Yeh T (2019) Two-Dimensional Probabilistic Infiltration Analysis in a Hillslope Using First-Order Moment Approach. Ground water 57(2): 226–237. Google Scholar
  24. Tran ATP, Kim AR, Cho GC (2019) Numerical modeling on the stability of slope with foundation during rainfall. Geomechanics and engineering 17(1):109–118. Google Scholar
  25. Van Genuchten MT (1980) A close form equation predicting the hydraulic conductivity of unsaturated soil. Soil Science Society of America Journal 44(5): 892–898. Google Scholar
  26. Vanapalli SK, Fredlund DG, Pufahl DE, Clifton AW (1996) Model for the Prediction of Shear Strength with respect to Soil Suction. Canadian Geotechnical Journal 33(3): 379–392. Google Scholar
  27. Wei N, Qian PY, Fu XD (2006) Effects of rainfall infiltration and evaporation on soil slope stability. Rock and Soil Mechanics 27(5)778–786. (In Chinese) Google Scholar
  28. Yang K, Thuo JN, Chen JW, et al. (2019) Failure investigation of a geosynthetic-reinforced soil slope subjected to rainfall. Geosynthetics international 26(1): 42–65. Google Scholar
  29. Yang P, Liu M, Zheng S (2004) Stability analysis of expansive soil slope with rainfall infiltration. Chinese Journal of Rock Mechanics & Engineering 23: 4478–4484. (In Chinese)Google Scholar
  30. Zhan L, Ng CWW, Bao C, et al. (2003) Artificial Rainfall Infiltration Tests on a Well-instrumented Unsaturated Expansive Soil Slope. Rock & Soil Mechanics 24(2): 151–158. (In Chinese). Google Scholar
  31. Zhang SY, Wang RG (2004) Identification of rainfall to infiltration depth of high filling embankment and finite element analysis for stability. Subgrade Engineering 5: 17–20. (In Chinese)Google Scholar
  32. Zhong L (1999) Case study on significant geo-hazards in China. Chinese Journal of Geological Hazard & Control 10(3): 1–10. (In Chinese)Google Scholar
  33. Zhu W, Cheng N, Chen X, et al. (2006) Some fundamental problems of unsaturated seepage. Chinese Journal of Geotechnical Engineering 28(2): 235–240. (In Chinese) Google Scholar

Copyright information

© Science Press, Institute of Mountain Hazards and Environment, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.State Key Laboratory of Geohazard Prevention and Geoenvironment ProtectionChengdu University of TechnologyChengduChina
  2. 2.School of Civil and Transportation EngineeringHebei University of TechnologyTianjinChina

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