Solution to 1-D consolidation of non-homogeneous soft clay |
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Authors: | Xie Kang-he Wen Jie-bang Xia Jian-zhong |
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Institution: | 1.Institute of Geotechnical Engineering,Zhejiang University,Hangzhou,China;2.Department of Civil Engineering,Zhejiang University of Science and Technology,Hangzhou,China |
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Abstract: | In this work, semi-analytical methods were used to solve the problem of 1-D consolidation of non-homogeneous soft clay with spatially varying coefficients of permeability and compressibility. The semi-analytical solution was programmed and then verified by comparison with the obtained analytical solution of a special case. Based on the results of some computations and comparisons with the 1-D homogeneous consolidation (by Terzaghi) and the 1-D non-linear consolidation theory (by Daviset al.) of soft clay, some diagrams were prepared and the relevant consolidation behavior of non-homogeneous soils, is discussed. It was shown that the result obtained differs greatly from Terzaghi’s theory and that of the non-linear consolidation theory when the coefficients of permeability and compressibility, vary greatly. |
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