Abstract
Rainfall-induced shallow slope failure has proved to be disastrous in many parts of the world. Majority of slope failures pose a significant risk to infrastructure and public-safety largely due to rainfall-induced slope failures. The stability analysis of slope generally seeks to understand the cause of the slope failure. The penetrating water reduces matric suction within the soil thereby reducing the shear strength of the soil slopes. In this direction, this paper attempted to analyze the slope behavior under different rainfall intensities and at slope angles. A series of numerical analysis was conducted under a fully coupled flow deformation in PLAXIS finite element modeling code. The numerical trials to check the stability of slope were performed under two dissimilar states, (1) rainfall of certain intensity was applied to the slope for a period of 24 h, and (2) the slope stability was analyzed using soil nailing technique. Different rainfall intensities were applied to evaluate the maximum deformation and variation of pore-water pressure of the shallow slope. Results showed that with increasing rainfall duration, slope deformation increased thereby making the slope unstable. In addition, it is observed that the horizontal deformation in case of the reinforced slope gets reduced, hence increasing slope stability.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Cai, F., Ugai, K.: Numerical analysis of rainfall effects on slope stability. Int. J. Geomech. 4, 69–78 (2004). https://doi.org/10.1061/(ASCE)1532-3641(2004)4:2(69)
Zhang, L.L., Fredlund, D.G., Zhang, L.M., Tang, W.H.: Numerical study of soil conditions under which matric suction can be maintained. Can. Geotech. J. 41, 569–582 (2004). https://doi.org/10.1139/t04-006
Collins, B.D., Znidarcic, D.: Stability analyses of rainfall induced landslides. J. Geotech. Geoenviron. Eng. 130, 362–372 (2004). https://doi.org/10.1061/(ASCE)1090-0241(2004)130:4(362)
Rahimi, A., Rahardjo, H., Leong, E.-C.: Effect of hydraulic properties of soil on rainfall-induced slope failure. Eng. Geol. 114, 135–143 (2010). https://doi.org/10.1016/J.ENGGEO.2010.04.010
Chinkulkijniwat, A., Horpibulsuk, S., Semprich, S.: Modeling of coupled mechanical-hydrological processes in compressed-air-assisted tunneling in unconsolidated sediments. Transp. Porous Media 108, 105–129 (2015). https://doi.org/10.1007/s11242-014-0295-6
Yubonchit, S., Chinkulkijniwat, A., Horpibulsuk, S., Jothityangkoon, C., Arulrajah, A., Suddeepong, A.: Influence factors involving rainfall-induced shallow slope failure: numerical study. Int. J. Geomech. 17, 04016158 (2017). https://doi.org/10.1061/(ASCE)GM.1943-5622.0000865
Luo, S.Q., Tan, S.A., Yong, K.Y.: Pull-out resistance mechanism of a soil nail reinforcement in dilative soils. Soils Found. 40, 47–56 (2000). https://doi.org/10.3208/sandf.40.47
Yuan, J.-X., Yang, Y., Tham, L.G., Lee, P.K.K., Tsui, Y.: New approach to limit equilibrium and reliability analysis of soil nailed walls. Int. J. Geomech. 3, 145–151 (2003). https://doi.org/10.1061/(ASCE)1532-3641(2003)3:2(145)
Babu, G.L.S., Singh, V.P.: Reliability analysis of soil nail walls. Georisk Assess. Manag. Risk Eng. Syst. Geohazards. 3, 44–54 (2009). https://doi.org/10.1080/17499510802541425
Brinkgreve, R.B.J., Swolf, W.M., Engine, E.: PLAXIS: Users Manual (2010)
Richards, L.A.: Capillary conduction of liquids through porous mediums. Physics 1, 318–333 (1931). https://doi.org/10.1063/1.1745010
Babu, G.L.S., Singh, V.P.: Plaxis practice—Stabilization of vertical cut using soil nailing. Plaxis Bull. October, N, 6–9 (2007)
Dar, A.Q., Maqbool, H.: Rainfall Intensity-Duration-Frequency Relationship for different regions of Kashmir Valley (J&K) India. In: 3rd International Conference on Science and Management, pp. 651–662, India International Centre, New Delhi (2016)
Dingman, S.L.: Physical Hydrology. Prentice Hall, Upper Saddle River, NJ (2002)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2021 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Ali, T., Rana, H., Babu, G.L.S. (2021). Analysis of Rainfall-Induced Shallow Slope Failure. In: Patel, S., Solanki, C.H., Reddy, K.R., Shukla, S.K. (eds) Proceedings of the Indian Geotechnical Conference 2019. Lecture Notes in Civil Engineering, vol 133. Springer, Singapore. https://doi.org/10.1007/978-981-33-6346-5_59
Download citation
DOI: https://doi.org/10.1007/978-981-33-6346-5_59
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-33-6345-8
Online ISBN: 978-981-33-6346-5
eBook Packages: EngineeringEngineering (R0)