Translations:Versickerung und Retention/130/en: Unterschied zwischen den Versionen
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(Die Seite wurde neu angelegt: „{| class="wikitable" |- ! colspan="2"|A<sub>s</sub> = A<sub>red</sub> / ( k<sub>r</sub> x s<sub>f</sub> x 107 / 2 x r <sub>D(n)</sub> –1) |- | A<sub>red</su…“) |
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{| class="wikitable" | {| class="wikitable" | ||
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− | ! colspan="2"|A<sub>s</sub> = A<sub>red</sub> / ( k<sub>r</sub> x s<sub>f</sub> x 107 / 2 x r <sub>D(n)</sub> –1) | + | ! colspan="2"|A<sub>s</sub> = A<sub>red</sub> / (k<sub>r</sub> x s<sub>f</sub> x 107 / 2 x r <sub>D(n)</sub> –1) |
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| A<sub>red</sub> || = connected paved surfaces | | A<sub>red</sub> || = connected paved surfaces | ||
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| k<sub>r</sub> || = 2 x 10<sup>-4</sup> m/s | | k<sub>r</sub> || = 2 x 10<sup>-4</sup> m/s | ||
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− | | r <sub>D(n)</sub> || = from KOSTRA table with n=0.2/a and D=10 min: r<sub>10(0.2)</sub> = 204.60 L/ | + | | r <sub>D(n)</sub> || = from KOSTRA table with n=0.2/a and D=10 min: r<sub>10(0.2)</sub> = 204.60 L/sha |
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Aktuelle Version vom 20. November 2018, 15:18 Uhr
As = Ared / (kr x sf x 107 / 2 x r D(n) –1) | |
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Ared | = connected paved surfaces |
sf | = Joints proportion in a permeable paved area (0 < sf =< 1) |
kr | = Permeability coefficient in the considered infiltration layer |
rD(n) | = Rain yield |
Example: | |
Ared | = 300 m2 |
sf | = 1 (INTEWA grass grid pavers) |
kr | = 2 x 10-4 m/s |
r D(n) | = from KOSTRA table with n=0.2/a and D=10 min: r10(0.2) = 204.60 L/sha |
As = 300 / ( 2 x 10-4 x 1 x 107 / 2 x 204.6 –1) = 77 m2 |