An analysis of a vertical-plane system is demonstrated below using a practical example. An embankment with the given dimensions will be investigated:
The following permeability data are given:
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Sand: k = 10-4 m/s
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Clay: k = 10-7 m/s
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Drainage: k = 10-2 m/s
The pondage on the water side of the embankment is at 20 m AD. A drainage system is installed on the air side, draining to 15 m AD. The phreatic line and the volume of water percolating through the embankment will be determined for this system.