Skip to main content
Log in

Rain-triggered slope failure of the railway embankment at Malda, India

  • Research Paper
  • Published:
Acta Geotechnica Aims and scope Submit manuscript

Abstract

The common slope stability analysis is incapable of accurately forecasting shallow slides where suction pressures play a critical role. This realization is used for elaborate stability analyses which include soil suction to better predict rainfall-induced slides at railway embankment at Malda where three known cases of slope failures and train derailments occurred after heavy rainfall. The relationship between the soil–water content and the matric suction is established for the embankment soil. It is then used in the coupled analyses of seepage and slope stability to estimate performances of the embankment at different intensity and duration of rainfall. The numerical simulations are performed with the FE code Geo-Studio. The numerical results show significant reduction in the factor of safety of the railway embankment with the increase in the intensity and duration of rainfall. The effectiveness of the proposed mitigation measures including placement of 2 m-wide free draining rockfill across the slopes and drilling 5-m-long sheet pile wall at the toe of the embankment is studied numerically. The study confirms that the proposed mitigation measures effectively increase the factor of safety of the embankment and stabilizing it even in case of a heavy rainfall of 25 mm/h over 12 h.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10

Similar content being viewed by others

References

  1. Aleotti P (2004) A warning system for rainfall-induced shallow failures. Eng Geol 73(4):247–265

    Article  Google Scholar 

  2. ASTM (2004). Standard guide for measuring matric potential in the vadose zone using tensiometers. ASTM standard D3404-91. American Society of Testing materials, West Conshohoken, PA

  3. Au SWC (1998) Rain-induced slope instability in Hong Kong. Eng Geol 51(1):1–36

    Article  Google Scholar 

  4. Borja RI, Liu X, White JA (2012) Multiphysics hillslope processes triggering landslides. Acta Geotech 7:261–269

    Article  Google Scholar 

  5. Brand EW (1992) Keynote paper: slope instability in tropical areas. Proceeding of 6th international symposium on landslides, Rotterdam, Netherlands, pp 2031–2051

  6. Cascini L, Cuomo S, Pastor M, Sorbino G (2010) Modeling of rainfall-induced shallow landslides of the flow. J Geotech Geoenviron Eng (ASCE) 136(1):85–98

    Article  Google Scholar 

  7. Casini F, Vaunat J, Romero E, Desideri A (2012) Consequences on water retention properties of double-porosity features in a compacted silt. Acta Geotech 7:139–150

    Article  Google Scholar 

  8. Fourie AB (1996) Predicting rainfall-induced slope instability. ICE Geotech Eng 119(4):211–218

    Article  Google Scholar 

  9. Fowze JSM, Bergado DT, Soralump S, Voottipreux P (2012) Rain-triggered landslide hazards and mitigation measures in Thailand: from research to practice. J Geotext Geomembr 30:50–64

    Article  Google Scholar 

  10. Fredlund DG, Morgenstern NR, Widger RA (1978) The shear strength of unsaturated soils. Can Geotech J 15(3):313–321

    Article  Google Scholar 

  11. Fredlund DG, Rahardjo H (1993) Soil mechanics for unsaturated soils. Wiley, New York

  12. Fredlund DG, Xing A (1994) Equation for soil water characteristic. Can Geotech J 31(3):521–532

    Article  Google Scholar 

  13. GEO-SLOPE Intl. Ltd. (2007). Seepage modeling with SEEP/W: an engineering methodology. 2007 edition, GEO-SLOPE Intl. Ltd, Calgary, Alberta, Canada

  14. Hillel D (1998) Environmental soil physics. Academic, New York, p 757

    Google Scholar 

  15. IMD (2012) Monsoon 2012: a report. IMD MET monograph no. 13/2013, Pai DS, Bhan SC (eds) National Climate Centre, Indian Meteorological Department, Government of India, Pune, India

  16. Jordan CA (2011) Combined hydrology and slope stability assessment of Olympic region of Washington State. PhD Dissertation, University of Washington, USA

  17. Khaladkar RM, Mahajan PN, Kulkarni JR (2009) Alarming rise in the number and intensity of extreme point rainfall events over the Indian region under climate change scenario. Research report no RR-123, ISSN 0252-1075, Indian Inst. of Tropical Meteorology, Maharashtra, India

  18. Krahn J (2008) Seepage modelling with SEEP/W—an engineering methodology, 3rd edn. March 2008, Geo-Slope International Ltd., Calgary, Alberta, Canada

  19. Krahn J (2008) Stability modeling with SLOPE/W—an engineering methodology, 3rd edn. March 2008, Geo-Slope International Ltd., Calgary, Alberta, Canada

  20. Krahn J (2008) Load deformation with SIGMA/W—an engineering methodology, 3rd edn. March 2008, Geo-Slope International Ltd., Calgary, Alberta, Canada

  21. Krahn J, Fredlund DG (1972) On total matric and osmotic suction. J Sci 114(5):339–348

    Google Scholar 

  22. Li X, Pei X, Gutierrez M, He S (2012) Optimal location of piles in slope stabilization by limit analysis. Acta Geotech 7:253–259

    Article  Google Scholar 

  23. Lu N, Wayllace A, Oh S (2013) Infiltration-induced seasonally reactivated instability of a highway embankment near the Eisenhower tunnel, Colorado, USA. Eng Geol 162:22–32

    Article  Google Scholar 

  24. Lu N, Sener-Kaya B, Wayllace A, Godt JW (2012) Analysis of rainfall-induced slope instability using a field of local factor of safety. Water Resour Res 48:W09524. doi:10.1029/2012WR011830

    Google Scholar 

  25. Marinho FAM (2005) Nature of soil–water characteristic curve for plastic soils. J Geotech Geoenviron Eng (ASCE) 131(5):654–661

    Article  Google Scholar 

  26. McDougall J, Ng CWW, Shi Q (1999) Discussion of influence of rainfall intensity and duration on slope stability in unsaturated soils. Q J Eng Geol Hydrogeol 32(3):303

    Article  Google Scholar 

  27. Meier J, Moser M, Datcheva M, Schanz T (2013) Numerical modeling and inverse parameter estimation of the large-scale mass movement Gradenbach in Carinthia (Austria). Acta Geotech 8:355–371

    Article  Google Scholar 

  28. Rahardjo H, Lee TT, Leong EC, Rezaur RB (2005) Response of a residual soil slope to rainfall. Can Geotech J 42(2):340–351

    Article  Google Scholar 

  29. Rahimi A, Rahardjo H, Leong C (2011) Effect of antecedent rainfall patterns on rainfall-induced slope failure. J Geotech Geoenviron Eng (ASCE) 137(5):483–491

    Article  Google Scholar 

  30. RDSO (2011) Rehabilitation of unstable formation between Gour Malda and Jamirghata Stations, Malda Division, Eastern Railway. Consultancy report no. RDSO/2011/GE:CR-0157, Geotechnical Engineering Directorate, RDSO, Lucknow, India

  31. RDSO (2003) Guidelines for Earthwork in Railway Projects. Guidelines no. GE: G-1, Ministry of Railways, Govt. of India, Geotechnical Engineering Directorate, Research Designs and Standards Organization, Lucknow, India

  32. RDSO (1998) Rehabilitation of weak formation between Gour Malda and Malda Town on Malda Division Eastern Railway. Consultancy report no: GE-20, Geotechnical Engineering Directorate, RDSO, Lucknow, India

  33. Smith PGC (2003) Numerical analysis of infiltration into partially saturated soil slopes. PhD Dissertation, Imperial College of Science, Technology and Medicine, London, UK

  34. Stratton, Yee Carlton (1975) Soil and hydrological factors affecting stability of natural slopes in the Oregon Ranges. PhD Dissertation, School of Forestry, Oregon State University Corvallis, USA

  35. Ugai K, Cai F (2004) Numerical analysis of rainfall effects on slope stability. Int J Geomech 4(2):69–78

    Article  Google Scholar 

  36. Vanapalli SK, Fredlund DG, Pufahl DE, Clifton AW (1996) Model for the prediction of shear strength with respect to soil suction. Can Geotech J 33:379–392

    Article  Google Scholar 

  37. Van Genuchten MTh (1980) A closed form equation for predicting the hydraulic conductivity of unsaturated soils. Soil Sci Soc Am J 44:892–898

    Article  Google Scholar 

  38. Yoshida Y, Kuwano J, Kuwano R (1991) Rain-induced slope failures caused by reduction in soil strength. Soils Found 31(4):187–193

    Article  Google Scholar 

  39. Zou Y (2012) A macroscopic model for predicting the relative hydraulic permeability of unsaturated soils. Acta Geotech 7:129–137

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Aniruddha Sengupta.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Raj, M., Sengupta, A. Rain-triggered slope failure of the railway embankment at Malda, India. Acta Geotech. 9, 789–798 (2014). https://doi.org/10.1007/s11440-014-0345-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11440-014-0345-9

Keywords

Navigation