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| ステレオグラフィック法による安定解析× | ロックマス・レーティング（RMR）× | |
|---|---|---|
| 分野 | 鉱山工学 | 鉱山工学 |
| 系統 | Process / pipeline | Process / pipeline |
| 提唱年≠ | 1960 | 1973 |
| 提唱者≠ | Structural Geology and Rock Mechanics Practice | Zbigniew T. Bieniawski |
| 種類≠ | Graphical method for analyzing slope stability with respect to jointing | Empirical classification for geotechnical engineering |
| 原典≠ | Priest, S. D. (1985). Hemispherical projection methods in rock mechanics. In Society for Mining, Metallurgy & Exploration, Technical Library. link ↗ | Bieniawski, Z. T. (1989). Engineering rock mass classifications. John Wiley & Sons. ISBN: 978-0-471-60437-4 |
| 別名 | Stereonet Analysis, Stereographic Projection, Pole Plot Analysis | RMR, Bieniawski Classification, RMR89 |
| 関連 | 3 | 3 |
| 概要≠ | 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 Rock Mass Rating (RMR) system, developed by Zbigniew Bieniawski starting in 1973, is an empirical classification that characterizes rock mass quality and estimates mining and civil engineering behavior. RMR combines five measurable geotechnical parameters into a single index ranging from 0 to 100, where higher values indicate stronger, more stable rock masses. It is the most widely used rock classification system worldwide for underground mining design. |
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