Specification of (ground) water level along pipeline axis (Input Table)

Data description/conditions:

Identifier: (toggleable)

Identification name of data reference point

Required

WATER1:

Z-coordinate of (ground) water level just before and at x-p reference point

Required

UNCV1:

Uncertainty value for depth of pipeline axis below water level

≥ 0.

[Default: 0.]

WATER2:

Z-coordinate of (ground) water level just after x-p ref. point

None / Undefined

(If WATER2 = Undefined it is assumed that WATER2 = WATER1)

UNCV2:

Uncertainty value for depth of pipeline axis below water level

≥ 0. / Undefined

[Default: 0.]

(If UNCV2 = Undefined it is assumed that UNCV2 = UNCV1)

WEIGHT:

Specific weight of water

> 0. / Undefined

(The weight of water is used to calculate the buoyancy when the pipe is below the water level and only in case the deadweight is calculated. The weight of water is equal to the density of water (ρ) times the gravitational acceleration (g).

The density of water is roughly 1000 kg/m3 and of seawater is about 1025 kg/m3. This approximately gives: (1)

W(fresh water) = 1E-5 N/mm3
W(sea water) = 1.025E-5 N/mm3)

 

 

Note 1:

The provided value for the weight of water above is given as a recommendation. This serves as an excellent initial approximation. In case a more precise value for the weight of water is needed:

W(fresh water) = 0.981E-5 N/mm3
W(sea water) = 1.006E-5 N/mm3

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H200141 (last modified: Jan 15, 2025)

See also:

Table description

Table error description