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	Hoek-Brown Failure Criterion	ストープ区画最適化
分野	鉱山工学	鉱山工学
系統	Process / pipeline	Process / pipeline
提唱年	1980	1960
提唱者	Evert Hoek and E. T. Brown	Mining Engineering Practice
種類	Empirical criterion for rock mass strength prediction	Optimization framework for underground mine excavation design
原典	Hoek, E., & Brown, E. T. (2002). The Hoek-Brown failure criterion and GSI: 2018 update. Journal of Rock Mechanics and Geotechnical Engineering, 10(2), 445-463.	Brady, B. H. G., & Brown, E. T. (2004). Rock mechanics for underground mining. Springer Science+Business Media.
別名	Generalized Hoek-Brown Criterion, HB Criterion	Stope Design, Underground Mine Layout, Panel Design
関連	3	3
概要	The Hoek-Brown Criterion, developed by Evert Hoek and E. T. Brown starting in 1980, is an empirical failure criterion that predicts the shear strength of rock masses as a function of confining pressure. It accounts for rock quality (via the Geological Strength Index, GSI) and thus bridges laboratory rock mechanics and field behavior. The criterion is widely used in mining for slope stability, pillar design, and stress analysis.	Stope layout optimization is the process of designing the size, shape, and spatial arrangement of underground mine excavations (stopes) to maximize ore recovery while maintaining safety and economic viability. It balances the desire for large extraction volumes against rock mechanics constraints and support costs. The layout determines mining productivity, capital investment in support systems, and long-term mine life.