Basalton Quattroblock Calculator

Dutch version based on Steentoets

Hydraulic stability calculation of the Basalton Quattroblock according to the simplified Steentoets formulas

The stability coefficients used in the calculation are determined by large scale model tests performed at Deltares in the Deltaflume.

Deviations of the results are in 95% of the occurences smaller than 10% of the results from Steentoets.

Results of these calculations can only be used as an indication and not for actual design.

See this link for a description of the simplified formulas

Input parameters

Significant wave height, H_s: m

Peak period, T_p: s

Slope = 1: -

Beta, angle of wave attack: degrees

Wash in material, D_i,15: mm

Filterlayer thickness, b₁: cm

Filtermaterial size, D_f,15: mm

Storm duration: hours

Upper limit of revetment: m+CD

Design waterlevel: m+CD

Output

Stability upperlimit formula (H_s/Δ · D): [-]

Stability simplified Steentoets (H_s/Δ · D): [-]

Block height according to the upperlimit formula: cm

Block height according to simplified Steentoets: cm

Recommended block height: cm

Basalton Quattroblock Calculator
This calculator is for indicative purposes only

Basalton Quattroblock Calculator

Hydraulic stability calculation of the Basalton Quattroblock according to the simplified Steentoets formulas

Input parameters

Output

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