Abstract
A rainfall-induced landslide case history in Hong Kong, i.e., the Fei Tsui Road landslide on 13 August 1995, is simulated in this study using a two-phase material point method (MPM). With the aid of hydro-mechanically coupled two-phase MPM, the entire process of the landslide case history is simulated, starting from rainfall infiltration, to advancement of wetting front, evolution of pore water pressure spatial distribution, triggering of multiple failure events, and post-failure large deformation of soils. The simulated results agree well with the field observation during the incident in 1995. Two separate failure events (i.e., one major failure occurred about 20 min after a minor failure) observed during the landslide are properly simulated by the two-phase MPM. The simulation also shows an accumulation of perched water that is consistent with a water table of less than 4 m observed during the incident. In addition, new insights into the failure mechanism are obtained from the simulation. The major failure event observed during the landslide is found to contain two different failure modes, one shallow failure and one deep failure. In the previous study, a weak layer of kaolinite-rich altered tuff was believed as a principal reason for the unusually large volume of sliding soil mass. However, the MPM parametric study in the manuscript shows that the weak layer only has a minor effect on the incident.
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References
Alonso EE, Gens A, Delahaye CH (2003) Influence of rainfall on the deformation and stability of a slope in overconsolidated clays: a case study. Hydrogeol J 11:174–192. https://doi.org/10.1007/s10040-002-0245-1
Bandara S, Soga K (2015) Coupling of soil deformation and pore fluid flow using material point method. Comput Geotech 63:199–214. https://doi.org/10.1016/J.COMPGEO.2014.09.009
Bandara S, Ferrari A, Laloui L (2016) Modelling landslides in unsaturated slopes subjected to rainfall infiltration using material point method. Int J Numer Anal Methods Geomech 40:1358–1380. https://doi.org/10.1002/nag.2499
Belytschko T, Liu WK, Moran B (2014) Nonlinear finite elements for continua and structures, 2nd edn. John Wiley & Sons, Chichester, UK
Bordoni M, Meisina C, Valentino R, Lu N, Bittelli M, Chersich S (2015) Hydrological factors affecting rainfall-induced shallow landslides: from the field monitoring to a simplified slope stability analysis. Eng Geol 193:19–37. https://doi.org/10.1016/J.ENGGEO.2015.04.006
Ceccato F, Simonini P (2017) Numerical study of partially drained penetration and pore pressure dissipation in piezocone test. Acta Geotech 12:195–209. https://doi.org/10.1007/s11440-016-0448-6
Chen ZP, Zhang X, Sze KY, Kan L, Qiu XM (2018) V-p material point method for weakly compressible problems. Comput Fluids 176:170–181. https://doi.org/10.1016/J.COMPFLUID.2018.09.005
Cho SE, Lee SR (2002) Evaluation of surficial stability for homogeneous slopes considering rainfall characteristics. J Geotech Geoenvironmental Eng 128:756–763. https://doi.org/10.1061/(ASCE)1090-0241(2002)128:9(756)
Collins BD, Znidarcic D (2004) Stability analyses of rainfall induced landslides. J Geotech Geoenvironmental Eng 130:362–372. https://doi.org/10.1061/(ASCE)1090-0241(2004)130:4(362)
Coombs WM, Charlton TJ, Cortis M, Augarde CE (2018) Overcoming volumetric locking in material point methods. Comput Methods Appl Mech Eng 333:1–21. https://doi.org/10.1016/J.CMA.2018.01.010
Fern EJ, Soga K (2016) The role of constitutive models in MPM simulations of granular column collapses. Acta Geotech 11:659–678. https://doi.org/10.1007/s11440-016-0436-x
Gan JKM, Fredlund DG (1995) Direct shear testing of a Hong Kong soil under various applied matric suctions. GEO Report No. 11. Geotechnical Engineering Office, Hong Kong
Gan JKM, Fredlund DG (2006) Laboratory measurement of the coefficient of permeability functions of selected Hong Kong soils. GEO Report No. 193. Geotechnical Engineering Office, Hong Kong
Griffiths DV, Lane PA (1999) Slope stability analysis by finite elements. Géotechnique 49:387–403. https://doi.org/10.1680/geot.1999.49.3.387
Griffiths DV, Lu N (2005) Unsaturated slope stability analysis with steady infiltration or evaporation using elasto-plastic finite elements. Int J Numer Anal Methods Geomech 29:249–267. https://doi.org/10.1002/nag.413
Ho KKS, Lau JWC (2010) Learning from slope failures to enhance landslide risk management. Q J Eng Geol Hydrogeol 43:33–68. https://doi.org/10.1144/1470-9236/08-006
Irfan TY (1998) Structurally controlled landslides in saprolitic soils in Hong Kong. Geotech Geol Eng 16(3):215–238. https://doi.org/10.1023/A:1008805827178
Iverson RM (2000) Landslide triggering by rain infiltration. Water Resour Res 36:1897–1910. https://doi.org/10.1029/2000WR900090
Jassim I, Stolle D, Vermeer P (2013) Two-phase dynamic analysis by material point method. Int J Numer Anal Methods Geomech 37:2502–2522. https://doi.org/10.1002/nag.2146
Kirk PA, Campbell SDG, Fletcher CJN, Merriman RJ (1997) The significance of primary volcanic fabrics and clay distribution in landslides in Hong Kong. J Geol Soc Lond 154:1009–1019. https://doi.org/10.1144/gsjgs.154.6.1009
Knill J, GEO (2006). Report on the Fei Tsui Road landslide of 13 August 1995. GEO Report No. 188. Geotechnical Engineering Office, Hong Kong
Kwong AKL, Wang M, Lee CF, Law KT (2004) A review of landslide problems and mitigation measures in Chongqing and Hong Kong: similarities and differences. Eng Geol 76:27–39. https://doi.org/10.1016/J.ENGGEO.2004.06.004
Lee LM, Gofar N, Rahardjo H (2009) A simple model for preliminary evaluation of rainfall-induced slope instability. Eng Geol 108:272–285. https://doi.org/10.1016/J.ENGGEO.2009.06.011
Li L, Wang Y (2019) Identification of failure slip surfaces for landslide risk assessment using smoothed particle hydrodynamics. Georisk Assess Manag Risk Eng Syst Geohazards:1–21. https://doi.org/10.1080/17499518.2019.1602877
Li WC, Lee LM, Cai H, Li HJ, Dai FC, Wang ML (2013) Combined roles of saturated permeability and rainfall characteristics on surficial failure of homogeneous soil slope. Eng Geol 153:105–113. https://doi.org/10.1016/J.ENGGEO.2012.11.017
Li WC, Dai FC, Wei YQ, Wang ML, Min H, Lee LM (2016) Implication of subsurface flow on rainfall-induced landslide: a case study. Landslides 13:1109–1123. https://doi.org/10.1007/s10346-015-0619-9
Liu X (2020) Probabilistic landslide simulation: from initiation to post-failure large deformation of soils. PhD thesis, City University of Hong Kong
Liu X, Wang Y, Li DQ (2019) Investigation of slope failure mode evolution during large deformation in spatially variable soils by random limit equilibrium and material point methods. Comput Geotech 111:301–312. https://doi.org/10.1016/J.COMPGEO.2019.03.022
Lu N, Godt J (2008) Infinite slope stability under steady unsaturated seepage conditions. Water Resour Res 44:W11404. https://doi.org/10.1029/2008WR006976
Mast CM, Mackenzie-Helnwein P, Arduino P, Miller GR, Shin W (2012) Mitigating kinematic locking in the material point method. J Comput Phys 231:5351–5373. https://doi.org/10.1016/J.JCP.2012.04.032
Mast CM, Arduino P, Miller GR, Mackenzie-Helnwein P (2014) Avalanche and landslide simulation using the material point method: flow dynamics and force interaction with structures. Comput Geosci 18:817–830. https://doi.org/10.1007/s10596-014-9428-9
Mualem Y (1976) A new model for predicting the hydraulic conductivity of unsaturated porous media. Water Resour Res 12:513–522. https://doi.org/10.1029/WR012i003p00513
Ng CW., Shi Q (1998) A numerical investigation of the stability of unsaturated soil slopes subjected to transient seepage. Comput Geotech 22:1–28. https://doi.org/10.1016/S0266-352X(97)00036-0
Oh S, Lu N (2015) Slope stability analysis under unsaturated conditions: case studies of rainfall-induced failure of cut slopes. Eng Geol 184:96–103. https://doi.org/10.1016/J.ENGGEO.2014.11.007
Pastor M, Blanc T, Haddad B, Petrone S, Sanchez Morles M, Drempetic V, Issler D, Crosta GB, Cascini L, Sorbino G, Cuomo S (2014) Application of a SPH depth-integrated model to landslide run-out analysis. Landslides 11:793–812. https://doi.org/10.1007/s10346-014-0484-y
Rahardjo H, Ong TH, Rezaur RB, Leong EC (2007) Factors controlling instability of homogeneous soil slopes under rainfall. J Geotech Geoenvironmental Eng 133:1532–1543. https://doi.org/10.1061/(ASCE)1090-0241(2007)133:12(1532)
Rahimi A, Rahardjo H, Leong EC (2010) Effect of hydraulic properties of soil on rainfall-induced slope failure. Eng Geol 114:135–143. https://doi.org/10.1016/J.ENGGEO.2010.04.010
Schrefler BA (1984) The finite element method in soil consolidation (with applications to surface subsidence). PhD thesis, University College of Swansea
Schrefler BA, Scotta R (2001) A fully coupled dynamic model for two-phase fluid flow in deformable porous media. Comput Methods Appl Mech Eng 190:3223–3246. https://doi.org/10.1016/S0045-7825(00)00390-X
Schrefler BA, Zhan X (1993) A fully coupled model for water flow and airflow in deformable porous media. Water Resour Res 29:155–167. https://doi.org/10.1029/92WR01737
Shi B, Zhang Y, Zhang W (2018) Analysis of the entire failure process of the rotational slide using the material point method. Int J Geomech 18:04018092. https://doi.org/10.1061/(ASCE)GM.1943-5622.0001211
Soga K, Alonso E, Yerro A, Kumar K, Bandara S (2016) Trends in large-deformation analysis of landslide mass movements with particular emphasis on the material point method. Géotechnique 66:248–273. https://doi.org/10.1680/jgeot.15.LM.005
Tang CL, Hu JC, Lin ML, Angelier J, Lu CY, Chan YC, Chu HT (2009) The Tsaoling landslide triggered by the Chi-Chi earthquake, Taiwan: insights from a discrete element simulation. Eng Geol 106:1–19
Tsaparas I, Rahardjo H, Toll D., Leong E (2002) Controlling parameters for rainfall-induced landslides. Comput Geotech 29:1–27. https://doi.org/10.1016/S0266-352X(01)00019-2
van Genuchten MT (1980) A closed-form equation for predicting the hydraulic conductivity of unsaturated soils. Soil Sci Soc Am J 44:892–898. https://doi.org/10.2136/sssaj1980.03615995004400050002x
Wang B, Vardon PJ, Hicks MA (2016) Investigation of retrogressive and progressive slope failure mechanisms using the material point method. Comput Geotech 78:88–98. https://doi.org/10.1016/j.compgeo.2016.04.016
Wang B, Vardon PJ, Hicks MA (2018) Rainfall-induced slope collapse with coupled material point method. Eng Geol 239:1–12. https://doi.org/10.1016/J.ENGGEO.2018.02.007
Wong TT, Fredlund DG, Krahn J (1998) A numerical study of coupled consolidation in unsaturated soils. Can Geotech J 35:926–937. https://doi.org/10.1139/t98-065
Wu LZ, Zhang LM (2009) Analytical solution to 1D coupled water infiltration and deformation in unsaturated soils. Int J Numer Anal Methods Geomech 33:773–790. https://doi.org/10.1002/nag.742
Yang CM, Yu WL, Dong JJ, Kuo CY, Shimamoto T, Lee CT, Togo T, Miyamoto Y (2014) Initiation, movement, and run-out of the giant Tsaoling landslide - what can we learn from a simple rigid block model and a velocity-displacement dependent friction law? Eng Geol 182:158–181. https://doi.org/10.1016/j.enggeo.2014.08.008
Yang KH, Uzuoka R, Thuo JN et al (2017) Coupled hydro-mechanical analysis of two unstable unsaturated slopes subject to rainfall infiltration. Eng Geol 216:13–30. https://doi.org/10.1016/J.ENGGEO.2016.11.006
Yerro A, Alonso EE, Pinyol NM (2015) The material point method for unsaturated soils. Géotechnique 65:201–217. https://doi.org/10.1680/geot.14.P.163
Yerro A, Alonso EE, Pinyol NM (2016) Run-out of landslides in brittle soils. Comput Geotech 80:427–439. https://doi.org/10.1016/J.COMPGEO.2016.03.001
Zabala F, Alonso EE (2011) Progressive failure of Aznalcóllar dam using the material point method. Géotechnique 61:795–808. https://doi.org/10.1680/geot.9.P.134
Zhan TLT, Ng CWW (2004) Analytical analysis of rainfall infiltration mechanism in unsaturated soils. Int J Geomech 4:273–284. https://doi.org/10.1061/(ASCE)1532-3641(2004)4:4(273)
Zhang LL, Zhang J, Zhang LM, Tang WH (2011) Stability analysis of rainfall-induced slope failure: a review. Proc Inst Civ Eng - Geotech Eng 164:299–316. https://doi.org/10.1680/geng.2011.164.5.299
Zhang J, Huang HW, Zhang LM, Zhu HH, Shi B (2014) Probabilistic prediction of rainfall-induced slope failure using a mechanics-based model. Eng Geol 168:129–140. https://doi.org/10.1016/J.ENGGEO.2013.11.005
Zhang LL, Li J, Li X, Zhang J, Zhu H (2016a) Rainfall-induced soil slope failure: stability analysis and probabilistic assessment. CRC Press, Boca Raton, USA
Zhang X, Chen Z, Liu Y (2016b) The material point method: a continuum-based particle method for extreme loading cases. Elsevier Inc., London, UK
Zienkiewicz OC, Chan AHC, Pastor M, Schrefler BA, Shiomi T (1999) Computational Geomechanics. Wiley, Chichester, UK
Acknowledgements
The work described in this paper was supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. T22-603/15N) and a grant from City University of Hong Kong (Project No. 7005040). The financial supports are gratefully acknowledged.
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Liu, X., Wang, Y. & Li, DQ. Numerical simulation of the 1995 rainfall-induced Fei Tsui Road landslide in Hong Kong: new insights from hydro-mechanically coupled material point method. Landslides 17, 2755–2775 (2020). https://doi.org/10.1007/s10346-020-01442-2
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DOI: https://doi.org/10.1007/s10346-020-01442-2