Lateral non-homogeneities characterization using seismic surface wave

Madun, Aziman and Yusoff, N.A. and Jefferson, I. Lateral non-homogeneities characterization using seismic surface wave. In: The International Conference on Civil and Environmental Engineering Sustainability (IConCEES 2011), 3-5 April 2012, Johor Bahru, Malaysia.

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Abstract

Seismic surface waves are well-suited for the study of the elastic profile of soils. Therefore this technique was adopted to evaluate the properties of stone columns used for ground improvement. A scaled-down model of typical stone columns in soft clay was constructed. Measurements were made on stone columns, under controlled conditions so that the properties of the materials used in the model under test were within limited ranges. The dispersive curve produced in this study demonstrated an increased phase velocity with increasing wavelength for the measurements on the clay (between columns), and decreased phase velocity with increasing wavelength for the measurements on the column. The results showed that were useful in characterization of the lateral non-homogeneities works such as vibro-stone column. These results pointed to the results can be influenced by the positioning of sensors with respect to the survey target. Benefit of this technique can be applied as a tool in quality control.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:stone column; seismic surface wave testing; quality control
Subjects:T Technology > TA Engineering (General). Civil engineering (General) > TA703-711 Engineering geology. Rock mechanics. Soil mechanics.
ID Code:2537
Deposited By:Normajihan Abd. Rahman
Deposited On:06 Nov 2012 08:57
Last Modified:06 Nov 2012 08:57

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