Active Earth Pressure of Narrow Backfill on Inverted T-Type Retaining Walls under Translation Mode

Data Availability Statement

Notation

B

width of bottom of backfill (m);

B₁

width of sliding wedge between retaining wall and sliding surface (m);

B₂

width of sliding wedge between sliding surfaces (m);

B₃

width of sliding wedge between sliding surface and rocky slope (m);

b₁

length of heel (m);

b₂

thickness of wall stem (m);

b₃

length of toe (m);

c

cohesion of backfill (kPa);

c_f

cohesion of foundation (GPa);

E₁

resultant force of earth pressure acting on wall stem (kN/m);

E₂

resultant force of earth pressure acting on imaginary wall (kN/m);

E₃

resultant force of earth pressure acting on heel (kN/m);

Earm

arm length from total earth pressure resultant force to the bottom of heel (m);

E_f

Young's modulus of foundation (MPa);

E_s

Young's modulus of backfill (MPa);

H

total height of wall (m);

H₁

height of wall stem (m);

H₂

thickness of bottom plate (m);

K₀

coefficient of earth pressure at rest;

k

coefficient of normal earth pressure (c ≠ 0);

k_c

coefficient of normal earth pressure (c = 0);

l_ij

jth sliding surface of the ith sliding surface group;

M

combined moment of total earth pressure (kN · m/m);

m

relative height of wall stem (m);

n

relative length of heel (m);

q

ground overload (kN/m);

R

arc radius of major principal stress trajectory (m);

S_h

horizontal component of the total earth pressure resultant force (kN/m);

z_E

height of total Earth pressure resultant force when it acts on wall stem (m);

α₁

first sliding surface inclination in semi-infinite-width backfill (°);

α₂

secondary sliding surface inclination in semi-infinite-width backfill (°);

α_E

inclination of total earth pressure resultant force (°);

α_ij

inclination of the jth sliding surface of the ith sliding surface group (°);

γ

unit weight of backfill (kN/m³);

γ_f

unit weight of foundation (kN/m³);

δ_L

friction of soil–wall interface (°);

δ_R

friction of soil–rock interface (°);

ɛ

inclination of the rocky slope interface (°);

θ

stress rotation angle (°);

σ_Ls

normal stress on imaginary wall (kPa);

σ_Lw

normal stress on wall stem (kPa);

υ

Poisson's ratio of backfill;

υ_f

Poisson's ratio of foundation;

φ

internal friction of backfill (°); and

φ_f

internal friction of foundation (°).

References