Specification of maximum longitudinal soil friction along pipeline axis (Input Table)

Data description/conditions:

X-P:

X-coordinate of data reference point

None / Required ¹

(X-P values should be increasing. Column may be toggled to AX-L, AX-LP, NODE, ELEM or IDENT, see toggling data tables.)

F1:

Maximum longitudinal soil friction just before and at data reference point

≥ 0.

(The value given for F1 on the first data table line is valid for every value of X less than or equal to X-P(1))

F2:

Maximum longitudinal soil friction just after data reference point

≥ 0. / Undefined

(The value given for F2 on the last data table line(n) is valid for every value of X greater than X-P(n). If F2=UNDEFINED it is assumed F2 = F1)

UNCF-L:

Uncertainty factor resulting in lower soil parameter f

≥ 1. / Undefined if UNCF-H is specified

[Default: 1.375]

(If UNCF-L = UNDEFINED it is assumed that UNCF-L = UNCF-H. UNCF-L is used when the uncertainty in table UNCER is set to Low)

UNCF-H:

Uncertainty factor resulting in higher soil parameter f

≥ 1. / Undefined if UNCF-L is specified

[Default: 1.375]

(If UNCF-H = UNDEFINED it is assumed UNCF-H = UNCF-L. UNCF-H is used when the uncertainty in table UNCER is set to High)

CFA1:

Friction factor for additional axial friction from lateral soil reaction just before and at data reference point

≥ 0. and ≤ 1. / Undefined

(If CFA1 = UNDEFINED , no additional ultimate friction is added to the specified initial friction (see Table Description))

CFA2:

Friction factor for additional axial friction from lateral soil reaction just after data reference point

≥ 0. and ≤ 1. / Undefined

(If CFA2 = UNDEFINED , it is considered to be equal to CFA1)

VARAR:

Half band width accuracy allowance percentage for soil parameter

> 0. and < 50. / Undefined if F1=F2=0.

[Default: 5.]

¹ see also DATA CONDITIONS at TABLE ERROR DESCRIPTION

H320131, last changed: 2009-07-16

See also: