A vertical sheet pile wall is installed in an anisotropic soil having coefficient of horizontal permeability, $k_{H}$ and coefficient of vertical permeability, $k_{V}.$ In order to draw the flow net for the isotropic condition, the embedment depth of the wall should be scaled by a factor of ____________, without changing the horizontal scale.
- $\sqrt{\frac{k_{H}}{k_{V}}}$
- $\sqrt{\frac{k_{V}}{k_{H}}}$
- $1.0 $
- $\frac{k_{H}}{k_{V}}$