手法を比較

	BEM 土質力学	MODFLOW groundwater modeling	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	1978	1984 (original release); continuously updated through MODFLOW-6 (2017)	1974
提唱者	Carlos Alberto Brebbia	Michael G. McDonald and Arlen W. Harbaugh (U.S. Geological Survey)	Artur S. Veletsos
種類	Mesh-less numerical method for geomechanical problems	Numerical groundwater flow simulation	Dynamic analysis of coupled soil-foundation-structure systems
原典	Brebbia, C. A. (1978). The Boundary Element Method for Engineers. Pentech Press. ISBN: 0-08-020191-5	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.	Veletsos, A. S., & Meek, J. W. (1974). Dynamic behaviour of building-foundation systems. Earthquake Engineering & Structural Dynamics, 3(2), 121-138.
別名	Boundary element method, BEM analysis, Indirect methods	MODFLOW-2005, MODFLOW-6, modular groundwater flow model, USGS groundwater model	SSI analysis, Foundation compliance, Dynamic foundation analysis
関連	3	0	4
概要	The boundary element method (BEM) for geomechanics is a numerical approach that solves problems by discretizing only the boundary of the domain, using analytical solutions for the interior. Introduced by Brebbia in 1978 and refined for geotechnical applications by Crouch and Starfield, BEM is particularly effective for infinite or semi-infinite domains (underground excavations, foundations, rock masses) where finite element methods are impractical.	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.	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.