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| Stereografisk släntstabilitetsanalys× | Hoek-Brown brottkriterium× | |
|---|---|---|
| Ämnesområde | Gruvteknik | Gruvteknik |
| Familj | Process / pipeline | Process / pipeline |
| Ursprungsår≠ | 1960 | 1980 |
| Upphovsperson≠ | Structural Geology and Rock Mechanics Practice | Evert Hoek and E. T. Brown |
| Typ≠ | Graphical method for analyzing slope stability with respect to jointing | Empirical criterion for rock mass strength prediction |
| Ursprungskälla≠ | Priest, S. D. (1985). Hemispherical projection methods in rock mechanics. In Society for Mining, Metallurgy & Exploration, Technical Library. link ↗ | 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. link ↗ |
| Alias≠ | Stereonet Analysis, Stereographic Projection, Pole Plot Analysis | Generalized Hoek-Brown Criterion, HB Criterion |
| Närliggande | 3 | 3 |
| Sammanfattning≠ | Stereographic projection is a graphical method for analyzing slope stability by representing the three-dimensional orientation of discontinuities (joints, bedding, faults) and the pit slope on a two-dimensional stereographic net (stereonet). The method enables rapid visual identification of potentially unstable slope geometries where discontinuities daylight out of the slope at steeper angles than the slope face. | 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. |
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