Masoumi hossein (15 resultados)

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Condición: New. Presents the latest theory and research on the scale, size and structure of rock materials Develops new methods for evaluating the scale-size dependency and structural effects of rock and rock-like materials Describes new technolo.

Taschenbuch. Condición: Neu. Size effects in intact rock | Investigation into the mechanical behaviour of intact rock at different sizes | Hossein Masoumi | Taschenbuch | 336 S. | Englisch | 2015 | Scholars' Press | EAN 9783639660456 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu. …

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The design of structures on or within a rock mass requires an estimate of the strength of the intact rock blocks within the mass. These blocks of rock can be many orders of magnitude greater in size than laboratory samples typically tested. The properties obtained from these samples must therefore be scaled to equivalent field values. This work investigates current methods for scaling strength and other rock properties and, in lieu of noted limitations, presents a new constitutive model for intact rock that incorporates size effects. A suite of laboratory testing was performed on samples having a range of sizes including point load, uniaxial and triaxial compressive tests. The majority of the material tested was Gosford sandstone, however, testing on other rock types was also performed. A unified size effect law, based on work by Bazant involving fracture energy as well as fractal theories, was shown to suitably match the ascending and descending UCS trends obtained from Gosford sandstone as well as other rock types. The law was also used to match the size effect trends of point load results. 336 pp. Englisch.…

Taschenbuch. Condición: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - The design of structures on or within a rock mass requires an estimate of the strength of the intact rock blocks within the mass. These blocks of rock can be many orders of magnitude greater in size than laboratory samples typically tested. The properties obtained from these samples must therefore be scaled to equivalent field values. This work investigates current methods for scaling strength and other rock properties and, in lieu of noted limitations, presents a new constitutive model for intact rock that incorporates size effects. A suite of laboratory testing was performed on samples having a range of sizes including point load, uniaxial and triaxial compressive tests. The majority of the material tested was Gosford sandstone, however, testing on other rock types was also performed. A unified size effect law, based on work by Bazant involving fracture energy as well as fractal theories, was shown to suitably match the ascending and descending UCS trends obtained from Gosford sandstone as well as other rock types. The law was also used to match the size effect trends of point load results.…

Condición: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Masoumi HosseinI graduated from Tehran University, Iran with Bachelor of Science degree in Mining Engineering in 2007 and completed the level of Master of Mining Engineering, major in Mine Management and Mine Geomechanics in 2009 at .…

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Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -The design of structures on or within a rock mass requires an estimate of the strength of the intact rock blocks within the mass. These blocks of rock can be many orders of magnitude greater in size than laboratory samples typically tested. The properties obtained from these samples must therefore be 'scaled' to equivalent field values. This work investigates current methods for scaling strength and other rock properties and, in lieu of noted limitations, presents a new constitutive model for intact rock that incorporates size effects. A suite of laboratory testing was performed on samples having a range of sizes including point load, uniaxial and triaxial compressive tests. The majority of the material tested was Gosford sandstone, however, testing on other rock types was also performed. A unified size effect law, based on work by Bazant involving fracture energy as well as fractal theories, was shown to suitably match the ascending and descending UCS trends obtained from Gosford sandstone as well as other rock types. The law was also used to match the size effect trends of point load results.OmniScriptum SRL, Str. Armeneasca 28/1, office 1, 2012 Chisinau 336 pp. Englisch.…