a

For a p-q plot, the y-axis intercept of failure envelope

a ?

For a p ?-q plot, the y-axis intercept of failure envelope

A

Area of soil specimen

A _c

Corrected area of soil specimen during shearing

A _s

Preshear area of soil specimen

c

Cohesion based on a total stress analysis

c ?

Cohesion based on an effective stress analysis

d _s

Preshear dial reading for height of soil specimen

D

Diameter of vane

D ₀

Initial diameter of soil specimen

? h

Change in height of soil specimen during consolidation

H

Height of vane

H ₀

Initial height of soil specimen

H _s

Preshear height of soil specimen

? H

Change in height of soil specimen during shearing

LL

Liquid limit

p

The x coordinate for a total stress path

p ?

The x coordinate for an effective stress path

P

Load applied by loading piston (triaxial apparatus)

PI

Plasticity index

q

The y coordinate for a total or effective stress path

q _u

Unconfined compressive strength

S

Degree of saturation

s _u

Undrained shear strength

t _f

Total elapsed time to failure

t ₅₀

Time for saturated cohesive soil to reach 50 percent primary consolidation

u

Pore water pressure

u _f

inal pore water pressure

u ₀

Initial pore water pressure

u _s

Preshear pore water pressure

? u

Change in pore water pressure

V ₀

Initial volume...