Soil Mechanics and Foundation
The flownet for an earthen dam with 30 m water depth consists of 25 potential drops and 5 flow channels. The coefficient of permeability of dam material is 0.03 mm/sec. The discharge per meter length of dam is

0.18 m3/sec
0.0045 m3/sec
0.1125 m3/sec
0.00018 nrVsec

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Soil Mechanics and Foundation
Effective stress on soil

Decreases voids ratio and increases permeability
Increases voids ratio and decreases permeability
Increases both voids ratio and permeability
Decreases both voids ratio and permeability

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