手法を比較

	岩盤分類	岩盤力学モデリング
分野	地球科学	地球科学
系統	Process / pipeline	Process / pipeline
提唱年	1974	1900s
提唱者	Bieniawski and Barton	Coulomb and Mohr
種類	engineering geology assessment pipeline	rock behavior prediction pipeline
原典	Bieniawski, Z. T. (1989). Engineering Rock Mass Classifications. John Wiley & Sons.	Jaeger, J. C., & Cook, N. G. W. (1979). Fundamentals of Rock Mechanics (2nd ed.). Chapman and Hall.
別名	RMR system, Q-system classification, rock quality designation	mechanical earth modeling, stress modeling, rock mechanics simulation
関連	4	5
概要	Rock mass classification is the systematic assessment of rock quality and mechanical behavior in engineering geology, combining field observations of jointing, weathering, and strength into a numerical index. Pioneered by Bieniawski (RMR system, 1974) and Barton (Q-system, 1974), these methods enable rapid site assessment and guide design of excavations, dams, and slopes. Classification bridges the gap between small laboratory samples and large field-scale behavior.	Geomechanical modeling is the numerical simulation of stress and deformation in rock masses, integrating rock properties, pressure conditions, and geometric constraints. Rooted in classical mechanics (Coulomb, Mohr) but modernized by finite element and finite difference methods, this approach is essential for well integrity assessment, reservoir compaction prediction, and stability evaluation of slopes and excavations. Models link subsurface geology to rock mechanical behavior.