The residual shear strength on failure plane is a crucial parameter to be estimated for analysis of an active landslide. This strength must be determined precisely to build a reliable theoretical model for calculations. The multi-reversal direct-shear test is a practical method to determine this shear strength in laboratory due to wider availability of apparatus. The shearing rate is among the factors that significantly affect the precision of test results for clay specimens. However, limits for this rate are yet to be clarified to shorten the duration of multi-reversal direct-shear tests. In this study, two tests series at different shearing rates were performed to investigate the effect of shearing rate on the residual strength of highly plastic clay sample recovered from a landslide area in Northern Turkey. The shearing rates were set to 0.024 mm/min which was decreased to 0.001 mm/min during the last forward shearing phase for the first test series, whereas the rate was fixed to 0.0007 mm/min for the second test series. The residual friction angle determined by these tests was interpreted by using a theoretical analysis of the landslide, and they were compared with the estimations due to empirical relationships given in the literature. It is concluded that, although the rate of 0.024 mm/min is consistent with the recommendations in literature, this rate can yield overestimation of residual shear strength determined in multi-reversal direct-shear tests.
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Abramson LW, Lee TS, Sharma S, Boyce GM (2002) Slope stability and stabilization methods, 2nd edn. John Wiley and Sons, San Francisco
Ameratunga J, Sivakugan N, Das B (2016) Correlations of soil and rock properties in geotechnical engineering, 1st edn. Springler, New Delhi
Anayi, J.T., Boyce, J.R., Rogers, C.D. (1988) Comparison of alternative methods of measuring the residual strength of clay, Transp Res Rec 1192:16–26
ASTM D3080/D3080M – 11, (2011) Standard Test Method for Direct-shear Test of Soils Under Consolidated Drained Conditions
Bhat DR, Yatabe R, Bhandar NP (2014) Slow shearing rates effect on residual strength of landslide soils. Soil Behavior, and Geomechanics, ASCE 236:293–303
BS 1377–7:1990 Methods of Test for Soils for Civil Engineering Purposes, Shear Strength Tests (total stress)
Duncan JM, Wright SG (2005) Soil strength and slope stability. John Wiley and Sons, Hoboken
Filz, G.M., Brandon, T.L., Duncan, J. M. (1992) Back analysis of the Olmstead landslide using anisotropic strengths, Transportation Research Board, 71th annual meeting Washington DC
Hatipoğlu M (2012) Kalıcı kayma mukavemetinin laboratuvar deneyleri ile belirlenmesi. Doktora Tezi, İstanbul Teknik Üniversitesi, İnşaat Mühendisliği Bölümü, İstanbul, Türkiye
Knappett J, Craig RF (2012) Craig’s soil mechanics. Spon Press, Abingdon, Oxon
Koltuk S (2005) Zeminlerin kalıcı kayma mukavemetinin halka kesme deneyi ile belirlenmesi. Yüksek Lisans Tezi, İstanbul Teknik Üniversitesi, İnşaat Mühendisliği Bölümü, İstanbul, Türkiye
Lambe, T. W. (1951) Soil testing for engineers soil science, 72(5), 406
Li B, Feng Z, Wang WP (2015) Characteristics of the Sannen formation clays and their relationship with loess landslides in the Guanzhong area, Shaanxi, China. Arab J Geosci 8:7831–7843
Maghsoudloo, A. (2013) Nonlinearity of the residual shear strength envelope in stiff clays. MSc Thesis, Middle East Technical University, Ankara, Turkey
Mesri G, Cepeda-Diaz AF (1986) Residual shear strength of clays, and shales. Geotechnique 36(2):269–274
Mesri G, Huvaj-Sarihan N (2012) Residual shear strength measured by laboratory tests, and mobilized in landslide. J Geotech Geoenviron 138(5):585–593
Skempton AW (1964) Long-term stability of slopes. Geotechnique 14(2):75–102
Skempton AW (1985) Residual strength of clays in landslides, folded strata and the laboratory. Geotechnique 35(1):3–18
Skempton AW, Leadbeater AD, Chandler RJ (1989) The Mam Tor landslide, North Derbyshire. Philosophical Transactions of the Royal Society of London A: Mathematical, Physical and Engineering Sciences 329(1607):503–547
Stark TD, Eid HT (1994) Drained residual strength of cohesive soils. J Geotech Eng 120(5):856–871
Stark TD, Hussain M (2010) Drained residual strength for landslides. GeoFlorida 2010:3217–3226
Tika TE, Hutchinson JN (1999) Ring shear tests on soil from the Vaiont landslide slip surface. Geotechnique 49(1):59–74
Tika TE, Vaughan PR, Lemos LJLJ (1996) Fast shearing of pre-existing shear zones in soil. Geotechnique 46(2):197–233
Ugurlu O, Kuruoglu O, Akman MK, Üzeler V, Aslan O (2011) Geotechnical report of the Ordukoy landslide between km: 151+890–151+980 interval. Yuksel Proje Int. Inc., Ankara [in Turkish]
Varnes, D.J. (1978) Slope movement types and processes. In special report 176: landslides: analysis and control
The authors would like to thank the Research and Development Department of General Directorate of Highways (KGM) and the 7th Regional Directorate (Samsun) of Highways for their support to this study.
Responsible Editor: Zeynal Abiddin Erguler
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Akis, E., Mekael, A. & Yilmaz, M.T. Investigation of the effect of shearing rate on residual strength of high plastic clay. Arab J Geosci 13, 66 (2020). https://doi.org/10.1007/s12517-019-5045-1
- Residual shear strength
- Multi-reversal direct-shear test
- Rate effects