8- A permeable soil layer is underlain by an impervious layer, as shown in Figure7.28. With k= 5.2 104 cm/sec for the permeable layer, calculate the rate of seepage through it in m³/hr/m length if H= 3.8 m and a 80, WERWERNER Groundwater table (free surface) Impervious layer Ground surface Direction of seepage

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Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.