Cohesionless Soils

Property

Type

Description

Default value/units

Example/range of values

General

Name

The item's name

Soil 1

any text

Type

The item's type

depends on soil created

rock, chalk, coarse silt, granular fill, custom granular soil, gravel, sand

Category

The item's sub group

Soil

Kind

The item's group

Materials

Notes

Free-form notes regarding this item

any text

Classification

Class

The soil's class

depends on item type

depends on item type

State

The soil's state

Strict validation

If checked, enforce narrower range of typical geotechnical properties of the soil.

Mass/Weight densities

Dry mass density

Mass density of the soil when dry

depends on soil class and state

depends on soil class and state

Wet mass density

Mass density of the soil when wet

Dry weight density

Weight density of the soil when dry

Wet weight density

Weight density of the soil when wet

Drained Strength

Angle of shearing resistance

Angle of shearing resistance of the soil at peak load, as measured (for example) in a triaxial compression test

depends on soil class and state

depends on soil class and state

Cohesion

Apparent cohesion of the soil at peak load, as measured (for example) in a triaxial compression test

Critical angle of shearing resistance

Angle of shearing resistance of the soil at the critical state, as measured (for example) in a triaxial compression test

Critical cohesion

Apparent cohesion of the soil at the critical state, as measured (for example) in a triaxial compression test

Large-strain drained stiffness

z0

Reference depth: the depth at which the value of G (below) applies

Not specified

≥ 1 m

G

The vertical elastic shear modulus of the soil at the reference depth z0

Not specified

≥ 1 kPa and ≤ 1000 GPa

dG/dz

Rate of change of vertical elastic shear modulus with depth

Not specified

≥ 0 and ≤ 10 MPa/m

dz

Depth over which the vertical elastic shear modulus increases

Not specified

≥ 1 m

dG

The increase in vertical elastic shear modulus over depth dz

Not specified

automatically calculated

v

[-]

Poisson's ratio of the soil

Not specified

≥ 0 and ≤ 0.4

E

The soil's vertical Young's modulus of elasticity

Not specified

automatically calculated from G

dE/dz

The rate of change of vertical Young's modulus with depth

Not specified

automatically calculated from dG/dz

dE

The increase in vertical Young's modulus over depth dz

Not specified

automatically calculated from dG

Anisotropy

[-]

The ratio of horizontal to vertical shear modulus

Not specified

Not specified

Gh

The horizontal elastic shear modulus of the soil at the reference depth

Not specified

automatically calculated from anisotropy

dGh/dz

Rate of change of horizontal elastic shear modulus with depth

Not specified

Eh

The soil's horizontal Young's modulus of elasticity

Not specified

dEh/dz

The rate of change of horizontal Young's modulus with depth

Not specified

Small-strain drained stiffness

See Large-strain stiffness

Help

Help file

Help file providing further information about this soil

Web site

Web site for the program

Class

Symbol

Unspecified

Chk‡

Grade I

Chk1‡

Grade II

Chk2‡

Grade III

Chk3‡

Grade IV

Chk4‡

Grade V

Chk5‡

Grade VI

Chk6‡