5. General parameters for Global and Detailed check

Water level

Niveau water

The water level.

Z_water

m

0.00

Unit weight of water

Soortelijk gewicht water

The unit weight of water.

γ_w

kN/m³

9.81

Revetment length dike top

Bekledingslengte vanaf buitenteen dijk

Horizontal projection of the length of the revetment, 

starting at dike toe at river side.

M_bestorting

m

0.00

(0-10000)

RX start bottom revetment

RX start vanaf geulbodem, onderste

gedeelte van vooroever

Start co-ordinate of the revetment at the bottom of the channel.

X_{start;bestorting;onder}

m

0.00

(-10000-10000)

Bottom revetment length

Bekledingslengte onderste gedeelte

van vooroever

Horizontal projection of the length of the revetment

at the bottom of the channel.

M_{bestorting;onder}

m

0.00

(0-10000)

Artificial and non-densified sandy foreland?

Is er sprake van een kunstmatig onder water aangebrachte en niet verdichte zandige of siltige vooroever?

No

State parameter Psi 5m

State parameter Psi 5m

Parameter describes the state of the soil and is used in the Detailed check.

0.0000

(-10-10)

Parameter describes the type of sand and is used in the Global check (breach flow criteria is step 1e).

Three types of sand are considered:

• very fine sand with  D₅₀ ≤ 200 μm and D₁₅ ≤ 100 μm
• medium fine sand with  200 < D₅₀ ≤ 500 μm and 100 < D₁₅ ≤ 250 μm
• coarse sand and gravel with   D₅₀ > 500 μm and D₁₅ > 250 μm 

Distance dike toe /
influence boundary

Afstand buiten dijk / invloedslijn

Parameter describes the distance between the dike toe and the boundary of influence zone. it must always be less than the foreland length.

0.00

(0-foreland length)