Comparer des méthodes

	Classification des massifs rocheux	Analyse diagraphique
Domaine	Géosciences	Géosciences
Famille	Process / pipeline	Process / pipeline
Année d'origine	1974	1940s
Auteur d'origine	Bieniawski and Barton	Guyod and Barnhart
Type	engineering geology assessment pipeline	subsurface characterization pipeline
Source fondatrice	Bieniawski, Z. T. (1989). Engineering Rock Mass Classifications. John Wiley & Sons.	Asquith, G. B., & Gibson, C. R. (2004). Basic Well Log Analysis (2nd ed.). American Association of Petroleum Geologists.
Alias	RMR system, Q-system classification, rock quality designation	wireline logging, borehole logging, petrophysical analysis
Apparentées	4	5
Résumé	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.	Well log analysis is the systematic examination of measurements recorded by instruments lowered into a borehole to characterize subsurface lithology, fluid content, and petrophysical properties. Originating in the 1940s, this method has become indispensable for petroleum exploration, groundwater assessment, and engineering geology. Well logs provide direct depth-correlated data that anchor interpretation of seismic surveys and constrain reservoir models.