Comprehensive Study Notes: 2D Seepage and Flow Net Analysis
Review of 2D Seepage and Flow Nets
Recap: Previously covered 2D seepage and learned how to draw flow nets. Concepts from 1D seepage are applicable.
Real-World Representation: 2D seepage is more representative of real-world conditions.
Governing Equation: The flow solution is derived from a second-order partial differential equation, specifically the Laplace equation.
Purpose of Flow Nets:
To understand the total head (H_t) at every location within the flow domain. If total head is known, then pore water pressure (u) can be determined.
Knowing pore water pressure allows for the calculation of effective stress (\sigma').
Effective stress information is crucial for civil engineering design (e.g., foundations, retaining structures).
Components and Characteristics of Flow Nets
Flow Lines (Blue Lines in Example): Represent the path that a 'particle' of water would take through the soil.
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