Rheological Consolidation of Partially Penetrated Deep Mixed Column-Reinforced Soft Soil under Rigid Foundation

Acknowledgments

Notation

a_i, b_i, c_i, d_i, θ_i, λ_i, x_i, y_i, ξ_i

variable used in derivation;

C_v1, C_v2

equivalent consolidation coefficient of Regions I and II, respectively;

E_c0, E_c1, η_c0, η_c1

parameters used in Burger’s model of the DM column;

E_comp0, E_comp1, η_comp0, η_comp1

parameters used in Burger’s model of composite soil;

ɛ_v

vertical strain;

E_s0, E_s1, η_s0, η_s1

parameters used in Burger’s model of soft soil;

γ_w

unit weight of water;

h₁, h₂, H

thicknesses of Region I, Region II, and the analyzed unit cell, respectively;

k_vs, k_hs, k_vc, k_hc

vertical and horizontal permeability of the soil and DM column, respectively;

P(t)

applied vertical load;

r_e, r_c

radius of influence zone and DM column, respectively;

$\overline{\sigma }$, ${\overline{\sigma }}_c$, ${\overline{\sigma }}_s$

average effective load on the ground, DM column, and soft soil, respectively;

$\overline{\sigma }(z)$

initial excess pore water pressure at depth z;

$\overline{U}$

overall average degree of consolidation of composite ground; and

$\overline{u}$, ${\overline{u}}_c$, ${\overline{u}}_s$

average excess pore water pressure on the ground, DM column, and soft soil, respectively.

References