Geostatic stress analysis framework decomposing total stress into pore pressure and effective stress components. The diagram flows from foundational concepts through three stress types—total stress (σ = Z·γ), pore pressure (μ = Z·γw), and effective stress (σ' = σ − μ)—with mathematical formulations and distribution mechanisms. This hierarchical structure is essential for geotechnical engineers designing foundations, slopes, and earth structures, as effective stress controls soil shear strength and settlement behavior. Fork this diagram to customize stress calculations for site-specific soil profiles, water table conditions, or educational presentations. The included case study on phreatic level descent demonstrates how groundwater changes alter effective stress distribution in sandy soils.