Civil Engineering Reference
In-Depth Information
Figure 6.18
Equivalent
vertical permeability of a
rock mass composed of
a sequence of horizontal
layers (Wittke 2000b)
The relationship for the equivalent permeability normal to the layers is obtained
from the continuity condition. Assuming steady-state, laminar fl ow and isotropic per-
meability of each layer the following results:
(6.47)
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