1,559
edits
Changes
Jump to navigation
Jump to search
Line 56:
Line 56: ==To calculate the required depth, where the area of the facility is constrained (3D drainage)==In some very constrained sites, the surface area of the BMP may be limited, in this case the required depth of cell or trench can be calculated::<math>d=a[e^{\left ( -bD \right )} -1]</math>Where<math>a=\frac{Ap}{x}-\frac{i Ai}{x f'}</math>and <math>b=\frac{xf'}{nAp}</math>(The rearrangement to calculate the required footprint area of the facility for a given depth using three dimensional drainage is not available at this time. Elegant submissions are invited.)
no edit summary
This spreadsheet tool has been set up to perform all of the infiltration practice sizing calculations shown below<br>
This spreadsheet tool has been set up to perform all of the infiltration practice sizing calculations shown below<br>
{{Clickable button|[[Media:Infiltration Sizing 20200525 locked.xlsx|Download the infiltration practice sizing tool]]}}
{{Clickable button|[[Media:Infiltration Sizing 20200525 locked.xlsx|Download the infiltration practice sizing tool]]}}
==To calculate the required depth, where the area of the facility is constrained (1D drainage)==
==To calculate the required depth, where the area of the facility is constrained (1D drainage)==