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 [...]
An earthen dam may be failed in the following three ways: 1. Hydraulic Failures 2. Seepage Type Failures 3. Structural Failures. 1. Hydraulic Failures: As per various reports the hydraulic failures of earthen dam varies upto 40%. This type of failure generally takes place in the following ways: i. Overtopping of the dam height. ii. Wave action towards u/s side [...]