השוואת שיטות

	עיבוי טרזגי	מודפלו (MODFLOW)	יציבות מדרון (בישוף-ינבו)	אינטראקציית קרקע-מבנה
תחום	הנדסה אזרחית	הנדסה אזרחית	הנדסה אזרחית	הנדסה אזרחית
משפחה	Process / pipeline	Process / pipeline	Process / pipeline	Process / pipeline
שנת המקור	1943	1984 (original release); continuously updated through MODFLOW-6 (2017)	1955	1974
הוגה השיטה	Karl Terzaghi	Michael G. McDonald and Arlen W. Harbaugh (U.S. Geological Survey)	Alan Bishop and Nilmar Janbu	Artur S. Veletsos
סוג	Diffusion equation for pore pressure dissipation and soil settlement	Numerical groundwater flow simulation	Limit equilibrium method for slope failure analysis	Dynamic analysis of coupled soil-foundation-structure systems
מקור מכונן	Terzaghi, K. (1943). Theoretical Soil Mechanics. John Wiley & Sons. ISBN: 0-471-85305-1	Harbaugh, A. W. (2005). MODFLOW-2005, the U.S. Geological Survey modular ground-water model — the Ground-Water Flow Process. U.S. Geological Survey Techniques and Methods 6-A16.	Bishop, A. W. (1955). The use of the slip circle in the stability analysis of slopes. Geotechnique, 5(1), 7-17.	Veletsos, A. S., & Meek, J. W. (1974). Dynamic behaviour of building-foundation systems. Earthquake Engineering & Structural Dynamics, 3(2), 121-138.
כינויים	Primary consolidation, Soil settlement, Effective stress	MODFLOW-2005, MODFLOW-6, modular groundwater flow model, USGS groundwater model	Circular slip surface, Limit equilibrium, Factor of safety	SSI analysis, Foundation compliance, Dynamic foundation analysis
קשורות	3	0	3	4
תקציר	Terzaghi consolidation theory describes how water-saturated clay soils compress over time as excess pore water pressure dissipates and effective stress increases. Formulated by Karl Terzaghi in 1943, this foundational theory enables prediction of settlement rates for foundations on compressible soils, a critical design concern in geotechnical engineering.	MODFLOW is the U.S. Geological Survey's open-source, modular finite-difference model for simulating three-dimensional groundwater flow through porous media. First released in 1984 and continuously updated — most recently as MODFLOW-6 — it is the global standard for quantitative hydrogeological analysis, widely used in civil engineering, environmental consulting, water-resource management, and groundwater contamination studies.	The Bishop and Janbu methods are limit equilibrium approaches for analyzing slope stability, computing the factor of safety against shear failure along a potential slip surface. Developed by Bishop (1955) and Janbu (1954), these methods remain the most widely used tools in geotechnical engineering for evaluating cut slopes, embankments, and natural hillsides.	Soil-structure interaction (SSI) analysis accounts for the dynamic coupling between a structure and its supporting foundation soil, recognizing that the soil is not infinitely rigid. Formalized by Veletsos in 1974, this approach reveals how foundation compliance, radiation damping, and kinematic effects modify the structure's seismic response compared to fixed-base assumptions.