Cohesive 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

clay, cohesive fill, custom cohesive soil, organic soil, river soil, silt

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

Tick to apply narrow limits to soil parameters, otherwise wide parameters are used

Is Fissured?

Flag indicating whether the soil contains fissures

Mass/weight densities

See Cohesionless Soils

Drained Strength

See Cohesionless Soils

Large-strain drained stiffness

See Cohesionless Soils

Small-strain drained stiffness

See Large-strain drained stiffness

Undrained strength

Minimum undrained strength

The minimum undrained strength of the cohesive soil

depends on soil class and state

depends on soil class and state

Undrained strength increase

The increase in undrained stength with depth

Maximum undrained strength

The maximum undrained strength of the cohesive soil

Depth of minimum undrained strength

The depth at which the minimum undrained strength occurs

Undrained strength increases over distance

The increase in undrained stength with distance

Depth of maximum undrained strength

The depth at which the maximum undrained strength occurs

Strain at 50% undrained strength

[-]

The strain in the soil when 50% of the undrained strength is mobolized

Large-strain undrained stiffness

See Large-strain drained stiffness

Small-strain undrained stiffness

See Large-strain drained stiffness

Help

Help file

Help file providing further information about this soil

Rex.chm

Web site

Web site for the program

www.geocentrix.co.uk/help/

Re/x class

ISO

BSCS

USCS

DIN

Unclassified

Cl

C

C

T

Gravelly clay

grCl

CG

CL/CH

-

Sandy clay

saCl

CS

CL/CH

-

Silty clay

siCl

CL

CL

-

Parameter

Classification

Minimum

Default

Maximum

Class

State

Ext.

Normal

Normal

Ext.

r d (kg/m3)

All

Unspecified

1200

1500

2050

2200

2500

Extremely low

Very low

1200

1400

1650

1800

2000

Low

1300

1500

1750

1900

2100

Medium

1450

1650

1900

2050

2250

High

1600

1800

2050

2200

2400

Very high

1750

1950

2200

2350

2450

Extremely high

1900

2100

2300

2400

2500

r s (kg/m3)

All

Unspecified

1200

1500

2050

2200

2500

Extremely low

Very low

1200

1400

1650

1800

2000

Low

1300

1500

1750

1900

2100

Medium

1450

1650

1900

2050

2250

High

1600

1800

2050

2200

2400

Very high

1750

1950

2200

2350

2450

Extremely high

1900

2100

2300

2400

2500

f peak (deg)

Cl

All

15

20

20

33

39

grCl

18

20

24

33

39

saCl

18

20

24

33

39

siCl

20

24

27

33

39

f crit (deg)

Cl

All

8

20

23

33

39

grCl

18

20

24

33

39

saCl

18

20

24

33

39

siCl

18

20

23

28

30

c'peak (kPa)

All

Unspecified

0

0

0

10

15

Very low

Low

0

0

0

0

0

Others

0

0

2

10

15

c'crit (kPa)

All

Very low

Low

0

0

0

0

0

Others

0

0

0

0

5

Cu (kPa)

All

Unspecified

1

20

20

150

1000

Extremely low

1

5

7

10

20

Very low

1

10

15

20

30

Low

10

20

25

40

60

Medium

30

40

50

75

100

High

60

75

100

150

200

Very high

100

150

200

300

400

Extremely high

200

300

375

500

1000

DCu (kPa/m)

All

Very low

Low

-100

-10

0

4

100

Others

-100

-10

0

8

100