手法を比較

	MODFLOW groundwater modeling	斜面の安定性（ビショップ・ヤンブ法）	地盤構造物相互作用
分野	土木工学	土木工学	土木工学
系統	Process / pipeline	Process / pipeline	Process / pipeline
提唱年	1984 (original release); continuously updated through MODFLOW-6 (2017)	1955	1974
提唱者	Michael G. McDonald and Arlen W. Harbaugh (U.S. Geological Survey)	Alan Bishop and Nilmar Janbu	Artur S. Veletsos
種類	Numerical groundwater flow simulation	Limit equilibrium method for slope failure analysis	Dynamic analysis of coupled soil-foundation-structure systems
原典	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.
別名	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
関連	0	3	4
概要	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.