A calculation model has been developed for large-strain radial consolidation incorporating lateral deformation in order to solve the problem of poor consolidation prediction for dredged sludge at high water content in vacuum preloading process. The differential solution for the proposed model is given, considering the effect of initial water content on the compression behavior. The model is suitable for unconsolidated soil and normally consolidated soil, which can take into account such factors as lateral deformation, varying compressibility and permeability coefficients, smearing effect, self-weight stress, negative pressure attenuation along the depth, etc. The proposed model is verified by comparing it with other existing theoretical solutions. Poisson’s ratio (v) is used to reflect the influence of lateral deformation on soil consolidation. The results show that lateral deformation has an important influence on soil consolidation degree, especially on consolidation degree defined by stress (U_p). The consolidation rate increases with the increase of v. The traditional equal-strain solution overestimates the consolidation rate of foundation. At the same normalized elevation, the void ratio increases while the excess pore water pressure decreases with the increase of v.

为了解决真空预压过程中高含水量的疏dr污泥固结预测不佳的问题，针对大应变径向固结并结合横向变形建立了计算模型。考虑初始含水量对压缩行为的影响，给出了所提模型的差分解。该模型适用于非固结土和正常固结土，该模型可以考虑横向变形，变化的可压缩性和渗透系数，拖尾效应，自重应力，沿深度的负压衰减等因素。通过与其他现有理论解决方案进行比较来验证。泊松比（v）用于反映横向变形对土壤固结的影响。U _p）。固结率随v的增加而增加。传统的等应变解法高估了基础的固结率。在相同的归一化高度下，空隙率随v的增加而增加，而多余的孔隙水压力随v的增加而减小。