Mechanical & Energy Engineering |
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Solution to 1-D consolidation of non-homogeneous soft clay |
XIE Kang-he, WEN Jie-bang, XIA Jian-zhong |
Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310027, China; Department of Civil Engineering, Zhejiang University of Science and Technology, Hangzhou 310012, 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 Davis et 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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Received: 10 January 2005
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