An earthen dam usually fails due to sliding of large soil mass from a curved surface. From several investigations, it has been concluded that the sliding of curved surface takes place along its slip surface, which is normally close to the cylindrical shape, i.e. when cross section is in the form of arc. There have been developed various methods for [...]
In this article we will discuss about:- 1. Design of Earthen Dam 2. Downstream Drainage Systems in Earthen Dam 3. Computation of Seepage Flow 4. Slope Protection. Design of Earthen Dam: The preliminary design of an earthen dam is done on the basis of past experiences on similar types of dam regarding their performance and life. The empirical formulae are [...]
In this article we will discuss about:- 1. Meaning of Phreatic Line 2. Derivation of Phreatic Line with Filter 3. Phreatic Line in Earthen Dam without Filter 4. Properties. Meaning of Phreatic Line: Phreatic line is also known as the seepage line or saturation line. It is defined as an imaginary line within the dam section, below which there is [...]