DING Zhou-xiang, QIU Yu-liang, LI Tao. Spatial asymmetry of excess pore pressure during nonlinear consolidation with two-way drainage[J]. 2012, 33(6).DOI:
Based on fundamentals of continuum mechanics with Eulerian description method and the corresponding configuration transform relationship
a strict functional form on excess pore pressure (EPP) and void ratio during nonlinear consolidation of saturated soil is presented in this paper to study the development of EPP with a general meaning of nonlinearity. According to the analytical solution to linear finite-strain one-dimensional consolidation by Morris and the presented functional form
analytical solutions to EPP occurred with two-way drainage are put forward for normally consolidated and dead weight consolidated soils respectively. Thereafter
the asymmetry characteristics of EPP and the impact factors are investigated through a numerical orthogonal experiment. The results show that a dimensionless parameter N plays a dominant role in the spatial distribution behavior of EPP during nonlinear consolidation. For the case of non-zero N,the symmetry distribution of EPP in context of classic Terzaghi’s theory is not suited to nonlinear consolidation.