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Rock Mechanics and Rock Engineering

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01.09.2010 | Original Paper

Experimental Validation of Modified Barton’s Model for Rock Fractures

verfasst von: Pooyan Asadollahi, Marco C. A. Invernizzi, Simone Addotto, Fulvio Tonon

Erschienen in: Rock Mechanics and Rock Engineering | Ausgabe 5/2010

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Abstract

Among the constitutive models for rock fractures developed over the years, Barton’s empirical model has been widely used. Although Barton’s failure criterion predicts peak shear strength of rock fractures with acceptable precision, it has some limitations in estimating the peak shear displacement, post-peak shear strength, dilation, and surface degradation. The first author modified Barton’s original model in order to address these limitations. In this study, the modified Barton’s model (the peak shear displacement, the shear stress–displacement curve, and the dilation displacement) is validated by conducting a series of direct shear tests.

Vorheriger Artikel A Shear Model Accounting Scale Effect in Rock Joints Behavior

Nächster Artikel Bias Correction for View-limited Lidar Scanning of Rock Outcrops for Structural Characterization

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Titel: Experimental Validation of Modified Barton’s Model for Rock Fractures
verfasst von: Pooyan Asadollahi
Marco C. A. Invernizzi
Simone Addotto
Fulvio Tonon
Publikationsdatum: 01.09.2010
Verlag: Springer Vienna
Erschienen in: Rock Mechanics and Rock Engineering / Ausgabe 5/2010
Print ISSN: 0723-2632
Elektronische ISSN: 1434-453X
DOI: https://doi.org/10.1007/s00603-010-0085-6

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