Construction of Flow Net for Seepage Analysis! Laplace's Equation: The equation is used in the construction of flow net. Assumptions: 1. Flow is two dimensional. 2. Water and soil are incompressible. 3. Soil is isotropic and homogeneous. 4. The soil is fully saturated. 5. The flow is steady, i.e., flow conditions do not change with time. 6. Darcy's law is [...]
In this article we will discuss about the failure of hydraulic structure by piping along with its control measures. Failure of Hydraulic Structures by Piping: Hydraulic structures, such as weirs and dams, built on pervious foundations may fail by a phenomenon that is known as piping. There are two types of such piping failure. 1. Backward Erosion Piping: When the [...]
Flow net is used to determine various hydraulic parameters needed for the stability analysis of hydraulic structures, as shown in the following subsections. 1. Determination of Discharge: The space between the two successive flow lines is known as a flow channel. The discharge is given by – q = KH Nf/Nd …(10.27) where k is the coefficient of permeability, H [...]