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Geomechanics and Engineering Volume 16, Number 5, December10 2018 , pages 547-558 DOI: https://doi.org/10.12989/gae.2018.16.5.547 |
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1g shaking table tests on residual soils in Malaysia through different model setups |
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Jun X. Lim, Min L. Lee and Yasuo Tanaka
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| Abstract | ||
| Studies of soil dynamic properties in Malaysia are still very limited. This study aims to investigate the dynamic properties of two selected tropical residual soils (i.e., Sandy Clay and Sandy Silt) and a sand mining trail (Silty Sand) in Peninsular Malaysia using 1g shaking table test. The use of 1g shaking table test for soil dynamic testing is often constrained to large strain level and small confining pressure only. Three new experimental setups, namely large laminar shear box test (LLSBT), small chamber test with positive air pressure (SCT), and small sample test with suction (SSTS) are attempted with the aims of these experimental setups are capable of evaluating the dynamic properties of soils covering a wider range of shear strain and confining pressure. The details of each experimental setup are described explicitly in this paper. Experimental results show that the combined use of the LLSBT and SCT is capable of rendering soil dynamic properties covering a strain range of 0.017%-1.48% under confining pressures of 5-100 kPa. The studied tropical residual soils in Malaysia behaved neither as pure sand nor clay, but show a relatively good agreement with the dynamic properties of residual soils in Singapore. Effects of confining pressure and plasticity index on the studied tropical residual soils are found to be insignificant in this particular study. | ||
| Key Words | ||
| residual soil; 1g shaking table test; secant shear modulus; damping ratio; confining pressure | ||
| Address | ||
| Jun X. Lim and Yasuo Tanaka:Department of Civil Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Selangor, Malaysia Min L. Lee:Department of Civil Engineering, Faculty of Engineering, University of Nottingham Malaysia, Selangor, Malaysia | ||