Nonlinear consolidation of arbitrary layered soil with continuous drainage boundary: An approximate closed-form solution

Autor: Zongqin Wang, Yunpeng Zhang, Mengfan Zong, Tao Wu, Wenbing Wu, Guoxiong Mei, Shengtao Zhou
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Soils and Foundations, Vol 64, Iss 1, Pp 101406- (2024)
Druh dokumentu: article
ISSN: 2524-1788
DOI: 10.1016/j.sandf.2023.101406
Popis: Based on the double nonlinear consolidation constitutive associated with the compression and permeability coefficients, presented by Mesri and Rokhsar (1974), this paper derives an approximate closed-form solution for the one-dimensional nonlinear consolidation of the arbitrary layered soils incorporating the continuous drainage boundary condition. The approximate closed-form solution is obtained by the homogenization of the boundary conditions and eigenfunction method. A model test is conducted to justify the rationality of the approximation and the continuous drainage condition utilized in this study. The calculated results are also compared with those acquired from the simplified analytical solution and the finite difference method. A parametric study is conducted to investigate the influence of various parameters on the consolidation process. The most significant finding is that the influence of Nq appears to be completely different for the cases when Cc/Ck>1 and Cc/Ck1, the increase of Nq shows an adverse influence on the consolidation, whereas the influence becomes positive when Cc/Ck
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