102255ltr SMP Iss B

Infiltration Trench Design

Infilitration trench dimensions
Length                         L             9.6 m
Width                          W            0.82 m
Depth                          D             0.9 m

Permeability calculations
Vertical permeability        K.vert       0.0001 m/s     (From Geotech)
Cross sectional area         A               7.87 m2
Vertical Flow rate           Q            0.0008 m3/s
                             Q                0.8 L/s

vert to horiz perm. ratio    Kv / Kh           0.5       (Range between 0.1-0.5)
Horizontal permeability      K.horiz      0.00005 m/s
Cross sectional area         A             18.756 m2
Horizontal Flow rate         Q         0.0009378 m3/s
                             Q                 0.9 L/s

Total flow rate              Qt              1.7 L/s