ZHOU Fengxi, HE Yiming, LAI Yuanming. 2015: TRANSFORMATIONAL RELATIONSHIP OF ONE-DIMENSIONAL CON ̄SOLIDA ̄TION SOLUTIONS BETWEEN NON-HOMOGENEOUS AND HOMOGENEOUS FOUNDATIONS. JOURNAL OF ENGINEERING GEOLOGY, 23(2): 260-264. DOI: 10.13544/j.cnki.jeg.2015.02.010
    Citation: ZHOU Fengxi, HE Yiming, LAI Yuanming. 2015: TRANSFORMATIONAL RELATIONSHIP OF ONE-DIMENSIONAL CON ̄SOLIDA ̄TION SOLUTIONS BETWEEN NON-HOMOGENEOUS AND HOMOGENEOUS FOUNDATIONS. JOURNAL OF ENGINEERING GEOLOGY, 23(2): 260-264. DOI: 10.13544/j.cnki.jeg.2015.02.010

    TRANSFORMATIONAL RELATIONSHIP OF ONE-DIMENSIONAL CON ̄SOLIDA ̄TION SOLUTIONS BETWEEN NON-HOMOGENEOUS AND HOMOGENEOUS FOUNDATIONS

    • Based on the one-dimensional consolidation theory, this paper examines the consolidation problem for the saturated non-homogeneous foundation whose physical and mechanical properties are variation along the depth. Firstly, the analytical solutions to the governing equation of a saturated soil layer is obtained using the method of separation of variables. The laws of soil permeability and compressibility coefficients with depth can be expressed as exponential functions. In addition, the analogous transformation relationships between two solutions of excess pore pressure and degree of consolidation are given through comparison of the present solution with the classical solutions of Terzaghi consolidation theory. The consolidation of non-homogenous foundation can be expressed by that of homogenous foundation with the same loading and boundary conditions. Consequently, the non-homogeneous foundation consolidation problem can be reduced to the calculation of the transition parameters and the factor concentrically reflecting the effects of non-homogeneous on consolidation. This method can provide a simple and convenient approach in analyzing and solving the non-homogeneous foundation consolidation.
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